Viewing: osd_handler.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Top-level entry points into osd module
*
* Author: Nikita Danilov <nikita@clusterfs.com>
* Author: Pravin Shelar <pravin.shelar@sun.com> - Added fid in dirent
*/
#define DEBUG_SUBSYSTEM S_OSD
#include <linux/fs_struct.h>
#include <linux/module.h>
#include <linux/user_namespace.h>
#include <linux/uidgid.h>
#include <linux/iversion.h>
/* prerequisite for linux/xattr.h */
#include <linux/types.h>
/* prerequisite for linux/xattr.h */
#include <lustre_compat/linux/fs.h>
/* XATTR_{REPLACE,CREATE} */
#include <linux/xattr.h>
#include <linux/workqueue.h>
#include <ldiskfs/ldiskfs.h>
#include <ldiskfs/xattr.h>
#include <ldiskfs/ldiskfs_extents.h>
#undef ENTRY
/*
* struct OBD_{ALLOC,FREE}*()
*/
#include <obd_support.h>
/* struct ptlrpc_thread */
#include <lustre_net.h>
#include <lustre_fid.h>
/* process_config */
#include <uapi/linux/lustre/lustre_param.h>
#include <uapi/linux/lustre/lustre_disk.h>
#include "osd_internal.h"
#include "osd_dynlocks.h"
/* llo_* api support */
#include <md_object.h>
#include <lustre_quota.h>
#include <lustre_linkea.h>
/* encoding routines */
#include <lustre_crypto.h>
/* Maximum EA size is limited by LNET_MTU for remote objects */
#define OSD_MAX_EA_SIZE 1048364
int ldiskfs_pdo = 1;
module_param(ldiskfs_pdo, int, 0644);
MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
int ldiskfs_track_declares_assert;
module_param(ldiskfs_track_declares_assert, int, 0644);
MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
/* Slab to allocate dynlocks */
struct kmem_cache *dynlock_cachep;
/* Slab to allocate osd_it_ea */
static struct kmem_cache *osd_itea_cachep;
static struct lu_kmem_descr ldiskfs_caches[] = {
{
.ckd_cache = &biop_cachep,
.ckd_name = "biop_cache",
.ckd_size = sizeof(struct osd_bio_private)
},
{
.ckd_cache = &dynlock_cachep,
.ckd_name = "dynlock_cache",
.ckd_size = sizeof(struct dynlock_handle)
},
{
.ckd_cache = &osd_itea_cachep,
.ckd_name = "osd_itea_cache",
.ckd_size = sizeof(struct osd_it_ea)
},
{
.ckd_cache = NULL
}
};
static atomic_t osd_mount_seq;
static const char dot[] = ".";
static const char dotdot[] = "..";
static const struct lu_object_operations osd_lu_obj_ops;
static const struct dt_object_operations osd_obj_ops;
static const struct dt_object_operations osd_obj_otable_it_ops;
static const struct dt_index_operations osd_index_iam_ops;
static const struct dt_index_operations osd_index_ea_ops;
static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
const struct lu_fid *fid);
static int osd_process_scheduled_agent_removals(const struct lu_env *env,
struct osd_device *osd);
static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, const char *name, int fl,
struct thandle *handle);
int osd_trans_declare_op2rb[] = {
[OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
[OSD_OT_PUNCH] = OSD_OT_MAX,
[OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
[OSD_OT_CREATE] = OSD_OT_DESTROY,
[OSD_OT_DESTROY] = OSD_OT_CREATE,
[OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
[OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
[OSD_OT_WRITE] = OSD_OT_WRITE,
[OSD_OT_INSERT] = OSD_OT_DELETE,
[OSD_OT_DELETE] = OSD_OT_INSERT,
[OSD_OT_QUOTA] = OSD_OT_MAX,
};
static int osd_has_index(const struct osd_object *obj)
{
return obj->oo_dt.do_index_ops != NULL;
}
static int osd_object_invariant(const struct lu_object *l)
{
return osd_invariant(osd_obj(l));
}
/*
* Concurrency: doesn't access mutable data
*/
static int osd_root_get(const struct lu_env *env,
struct dt_device *dev, struct lu_fid *f)
{
lu_local_obj_fid(f, OSD_FS_ROOT_OID);
return 0;
}
struct file *osd_get_filp_for_inode(struct osd_thread_info *oti,
struct inode *inode)
{
struct file *file = &oti->oti_file;
int rc;
rc = compat_security_file_alloc(file);
if (rc)
return ERR_PTR(rc);
inode->i_flags |= S_NOSEC;
file->f_pos = 0;
file->f_mode = FMODE_64BITHASH | FMODE_NONOTIFY;
file->f_flags = O_NOATIME;
file->f_op = inode->i_fop;
file->f_inode = inode;
file->f_mapping = inode->i_mapping;
file->__f_path.dentry = &oti->oti_obj_dentry;
file->__f_path.dentry->d_inode = inode;
return file;
}
/*
* the following set of functions are used to maintain per-thread
* cache of FID->ino mapping. this mechanism is needed to resolve
* FID to inode at dt_insert() which in turn stores ino in the
* directory entries to keep ldiskfs compatible with ext[34].
* due to locking-originated restrictions we can't lookup ino
* using LU cache (deadlock is possible). lookup using OI is quite
* expensive. so instead we maintain this cache and methods like
* dt_create() fill it. so in the majority of cases dt_insert() is
* able to find needed mapping in lockless manner.
*/
static struct osd_idmap_cache *
osd_idc_find(const struct lu_env *env, struct osd_device *osd,
const struct lu_fid *fid)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_idmap_cache *idc = oti->oti_ins_cache;
int i;
for (i = 0; i < oti->oti_ins_cache_used; i++) {
if (!lu_fid_eq(&idc[i].oic_fid, fid))
continue;
if (idc[i].oic_dev != osd)
continue;
return idc + i;
}
return NULL;
}
static struct osd_idmap_cache *
osd_idc_add(const struct lu_env *env, struct osd_device *osd,
const struct lu_fid *fid)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_idmap_cache *idc;
int i;
if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
i = oti->oti_ins_cache_size * 2;
if (i == 0)
i = OSD_INS_CACHE_SIZE;
OBD_ALLOC_PTR_ARRAY_LARGE(idc, i);
if (idc == NULL)
return ERR_PTR(-ENOMEM);
if (oti->oti_ins_cache != NULL) {
memcpy(idc, oti->oti_ins_cache,
oti->oti_ins_cache_used * sizeof(*idc));
OBD_FREE_PTR_ARRAY_LARGE(oti->oti_ins_cache,
oti->oti_ins_cache_used);
}
oti->oti_ins_cache = idc;
oti->oti_ins_cache_size = i;
}
idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
idc->oic_fid = *fid;
idc->oic_dev = osd;
idc->oic_lid.oii_ino = 0;
idc->oic_lid.oii_gen = 0;
idc->oic_remote = 0;
return idc;
}
/*
* lookup mapping for the given fid in the cache, initialize a
* new one if not found. the initialization checks whether the
* object is local or remote. for local objects, OI is used to
* learn ino/generation. the function is used when the caller
* has no information about the object, e.g. at dt_insert().
*/
static struct osd_idmap_cache *
osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
const struct lu_fid *fid)
{
struct osd_idmap_cache *idc;
int rc;
idc = osd_idc_find(env, osd, fid);
LASSERT(!IS_ERR(idc));
if (idc != NULL)
return idc;
CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
osd->od_svname, PFID(fid));
/* new mapping is needed */
idc = osd_idc_add(env, osd, fid);
if (IS_ERR(idc)) {
CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
osd->od_svname, PFID(fid), PTR_ERR(idc));
return idc;
}
/* initialize it */
rc = osd_remote_fid(env, osd, fid);
if (unlikely(rc < 0))
return ERR_PTR(rc);
if (rc == 0) {
/* the object is local, lookup in OI */
/* XXX: probably cheaper to lookup in LU first? */
rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
&idc->oic_lid, 0);
if (unlikely(rc < 0)) {
CERROR("%s: cannot lookup FID "DFID": rc = %d\n",
osd->od_svname, PFID(fid), rc);
return ERR_PTR(rc);
}
} else {
/* the object is remote */
idc->oic_remote = 1;
}
return idc;
}
static void osd_idc_dump_lma(const struct lu_env *env,
struct osd_device *osd,
unsigned long ino,
bool check_in_oi)
{
struct osd_thread_info *info = osd_oti_get(env);
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
const struct lu_fid *fid;
struct osd_inode_id lid;
struct inode *inode;
int rc;
inode = osd_ldiskfs_iget(osd_sb(osd), ino, 0);
if (IS_ERR(inode)) {
CERROR("%s: can't get inode %lu: rc = %d\n",
osd->od_svname, ino, (int)PTR_ERR(inode));
return;
}
if (is_bad_inode(inode)) {
CERROR("%s: bad inode %lu\n", osd->od_svname, ino);
goto put;
}
rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
if (rc) {
CERROR("%s: can't get LMA for %lu: rc = %d\n",
osd->od_svname, ino, rc);
goto put;
}
fid = &loa->loa_lma.lma_self_fid;
LCONSOLE(D_INFO, "%s: "DFID" in inode %lu/%u\n", osd->od_svname,
PFID(fid), ino, (unsigned)inode->i_generation);
if (!check_in_oi)
goto put;
rc = osd_oi_lookup(osd_oti_get(env), osd, fid, &lid, 0);
if (rc) {
CERROR("%s: can't lookup "DFID": rc = %d\n",
osd->od_svname, PFID(fid), rc);
goto put;
}
LCONSOLE(D_INFO, "%s: "DFID" maps to %u/%u\n", osd->od_svname,
PFID(fid), lid.oii_ino, lid.oii_gen);
put:
iput(inode);
}
static void osd_idc_dump_debug(const struct lu_env *env,
struct osd_device *osd,
const struct lu_fid *fid,
unsigned long ino1,
unsigned long ino2)
{
struct osd_inode_id lid;
int rc;
rc = osd_oi_lookup(osd_oti_get(env), osd, fid, &lid, 0);
if (!rc) {
LCONSOLE(D_INFO, "%s: "DFID" maps to %u/%u\n",
osd->od_svname, PFID(fid), lid.oii_ino, lid.oii_gen);
osd_idc_dump_lma(env, osd, lid.oii_ino, false);
} else {
CERROR("%s: can't lookup "DFID": rc = %d\n",
osd->od_svname, PFID(fid), rc);
}
if (ino1)
osd_idc_dump_lma(env, osd, ino1, true);
if (ino2)
osd_idc_dump_lma(env, osd, ino2, true);
}
/*
* lookup mapping for given FID and fill it from the given object.
* the object is lolcal by definition.
*/
static int osd_idc_find_and_init(const struct lu_env *env,
struct osd_device *osd,
struct osd_object *obj)
{
const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
struct osd_idmap_cache *idc;
idc = osd_idc_find(env, osd, fid);
LASSERT(!IS_ERR(idc));
if (idc != NULL) {
if (obj->oo_inode == NULL)
return 0;
if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
if (idc->oic_lid.oii_ino) {
osd_idc_dump_debug(env, osd, fid,
idc->oic_lid.oii_ino,
obj->oo_inode->i_ino);
return -EINVAL;
}
idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
}
return 0;
}
CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
osd->od_svname, PFID(fid));
/* new mapping is needed */
idc = osd_idc_add(env, osd, fid);
if (IS_ERR(idc)) {
CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
osd->od_svname, PFID(fid), PTR_ERR(idc));
return PTR_ERR(idc);
}
if (obj->oo_inode != NULL) {
idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
}
return 0;
}
/*
* OSD object methods.
*/
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
static struct lu_object *osd_object_alloc(const struct lu_env *env,
const struct lu_object_header *hdr,
struct lu_device *d)
{
struct osd_object *mo;
OBD_ALLOC_PTR(mo);
if (mo != NULL) {
struct lu_object *l;
struct lu_object_header *h;
struct osd_device *o = osd_dev(d);
l = &mo->oo_dt.do_lu;
if (unlikely(o->od_in_init)) {
OBD_ALLOC_PTR(h);
if (!h) {
OBD_FREE_PTR(mo);
return NULL;
}
lu_object_header_init(h);
lu_object_init(l, h, d);
lu_object_add_top(h, l);
mo->oo_header = h;
} else {
dt_object_init(&mo->oo_dt, NULL, d);
mo->oo_header = NULL;
}
mo->oo_dt.do_ops = &osd_obj_ops;
l->lo_ops = &osd_lu_obj_ops;
init_rwsem(&mo->oo_dt.dd_sem);
init_rwsem(&mo->oo_ext_idx_sem);
spin_lock_init(&mo->oo_guard);
INIT_LIST_HEAD(&mo->oo_xattr_list);
return l;
}
return NULL;
}
int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
struct dentry *dentry, struct lustre_ost_attrs *loa)
{
int rc;
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
(void *)loa, sizeof(*loa));
if (rc > 0) {
struct lustre_mdt_attrs *lma = &loa->loa_lma;
if (rc < sizeof(*lma))
return -EINVAL;
rc = 0;
lustre_loa_swab(loa, true);
/* Check LMA compatibility */
if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
rc = -EOPNOTSUPP;
CWARN("%s: unsupported incompat LMA feature(s) %#x for fid = "DFID", ino = %lu: rc = %d\n",
osd_ino2name(inode),
lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
PFID(&lma->lma_self_fid), inode->i_ino, rc);
}
} else if (rc == 0) {
rc = -ENODATA;
}
return rc;
}
/*
* retrieve object from backend ext fs.
**/
static struct inode *osd_iget2(struct osd_thread_info *info,
struct osd_device *dev, struct osd_inode_id *id,
int flags, int *err)
{
struct inode *inode = NULL;
int rc = 0;
/*
* if we look for an inode withing a running
* transaction, then we risk to deadlock
* osd_dirent_check_repair() breaks this
*/
/* LASSERT(current->journal_info == NULL); */
inode = osd_ldiskfs_iget(osd_sb(dev), id->oii_ino, flags);
if (IS_ERR(inode)) {
CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
id->oii_ino, PTR_ERR(inode));
} else if (id->oii_gen != OSD_OII_NOGEN &&
inode->i_generation != id->oii_gen) {
CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
"i_generation = %u\n",
id->oii_ino, id->oii_gen, inode->i_generation);
rc = -ESTALE;
} else if (inode->i_nlink == 0) {
/*
* due to parallel readdir and unlink,
* we can have dead inode here.
*/
CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
rc = -ESTALE;
} else if (is_bad_inode(inode)) {
CWARN("%s: bad inode: ino = %u: rc = %d\n",
osd_dev2name(dev), id->oii_ino, -ENOENT);
rc = -ENOENT;
} else if (osd_is_ea_inode(inode)) {
/*
* EA inode is internal ldiskfs object, should don't visible
* on osd
*/
CDEBUG(D_INODE, "EA inode: ino = %u\n", id->oii_ino);
rc = -ENOENT;
} else if ((rc = osd_attach_jinode(inode))) {
CDEBUG(D_INODE, "jbd: ino = %u rc = %d\n", id->oii_ino, rc);
} else {
ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
if (id->oii_gen == OSD_OII_NOGEN)
osd_id_gen(id, inode->i_ino, inode->i_generation);
/* Disable LSM security */
inode->i_flags |= S_PRIVATE;
/*
* Do not update file c/mtime in ldiskfs.
* NB: we don't have any lock to protect this because we don't
* have reference on osd_object now, but contention with
* another lookup + attr_set can't happen in the tiny window
* between if (...) and set S_NOCMTIME.
*/
if (!(inode->i_flags & S_NOCMTIME))
inode->i_flags |= S_NOCMTIME;
}
*err = rc;
return inode;
}
struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
struct osd_inode_id *id, int flags)
{
struct inode *inode;
int rc = 0;
inode = osd_iget2(info, dev, id, flags, &rc);
if (rc) {
iput(inode);
inode = ERR_PTR(rc);
}
return inode;
}
int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
handle_t *handle, struct dentry *child,
struct inode *inode, struct htree_lock *hlock)
{
int rc, rc2;
rc = __ldiskfs_add_entry(handle, child, inode, hlock);
if (rc == -ENOBUFS || rc == -ENOSPC) {
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct inode *parent = child->d_parent->d_inode;
struct lu_fid *fid = NULL;
char fidstr[FID_LEN + 1] = "unknown";
rc2 = osd_get_lma(info, parent, child->d_parent, loa);
if (!rc2) {
fid = &loa->loa_lma.lma_self_fid;
} else if (rc2 == -ENODATA) {
if (unlikely(is_root_inode(parent))) {
fid = &info->oti_fid3;
lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
} else if (!osd->od_is_ost && osd->od_index == 0) {
fid = &info->oti_fid3;
lu_igif_build(fid, parent->i_ino,
parent->i_generation);
}
}
if (fid != NULL)
snprintf(fidstr, sizeof(fidstr), DFID, PFID(fid));
/* below message is checked in sanity.sh test_129 */
if (rc == -ENOSPC) {
CWARN("%s: directory (inode: %lu, FID: %s) has reached max size limit\n",
osd_name(osd), parent->i_ino, fidstr);
} else {
rc = 0; /* ignore such error now */
CWARN("%s: directory (inode: %lu, FID: %s) is approaching max size limit\n",
osd_name(osd), parent->i_ino, fidstr);
}
}
return rc;
}
struct inode *
osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
struct osd_inode_id *id, struct lu_fid *fid, int flags)
{
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct inode *inode;
int rc;
inode = osd_iget(info, dev, id, flags);
if (IS_ERR(inode))
return inode;
rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
if (!rc) {
*fid = loa->loa_lma.lma_self_fid;
} else if (rc == -ENODATA) {
if (unlikely(is_root_inode(inode)))
lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
else
lu_igif_build(fid, inode->i_ino, inode->i_generation);
} else {
iput(inode);
inode = ERR_PTR(rc);
}
return inode;
}
static struct inode *osd_iget_check(struct osd_thread_info *info,
struct osd_device *dev,
const struct lu_fid *fid,
struct osd_inode_id *id,
bool trusted)
{
struct inode *inode;
bool special = false;
int rc = 0;
ENTRY;
/*
* The cached OI mapping is trustable. If we cannot locate the inode
* via the cached OI mapping, then return the failure to the caller
* directly without further OI checking.
*/
if (unlikely(fid_is_acct(fid)))
special = true;
again:
inode = osd_iget2(info, dev, id,
special ? LDISKFS_IGET_SPECIAL : 0, &rc);
if (rc) {
if (!trusted && (rc == -ENOENT || rc == -ESTALE))
goto check_oi;
CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
PFID(fid), id->oii_ino, rc);
GOTO(put, rc);
}
check_oi:
if (rc != 0) {
__u32 saved_ino = id->oii_ino;
__u32 saved_gen = id->oii_gen;
LASSERT(!trusted);
LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
/*
* XXX: There are four possible cases:
* 1. rc = 0.
* Backup/restore caused the OI invalid.
* 2. rc = 0.
* Someone unlinked the object but NOT removed
* the OI mapping, such as mount target device
* as ldiskfs, and modify something directly.
* 3. rc = -ENOENT.
* Someone just removed the object between the
* former oi_lookup and the iget. It is normal.
* 4. Other failure cases.
*
* Generally, when the device is mounted, it will
* auto check whether the system is restored from
* file-level backup or not. We trust such detect
* to distinguish the 1st case from the 2nd case:
* if the OI files are consistent but may contain
* stale OI mappings because of case 2, if iget()
* returns -ENOENT or -ESTALE, then it should be
* the case 2.
*/
if (rc != 0)
/*
* If the OI mapping was in OI file before the
* osd_iget_check(), but now, it is disappear,
* then it must be removed by race. That is a
* normal race case.
*/
GOTO(put, rc);
/*
* It is the OI scrub updated the OI mapping by race.
* The new OI mapping must be valid.
*/
if (saved_ino != id->oii_ino ||
(saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
if (!IS_ERR(inode))
iput(inode);
trusted = true;
goto again;
}
if (IS_ERR(inode)) {
if (dev->od_scrub.os_scrub.os_file.sf_flags &
SF_INCONSISTENT)
/*
* It still can be the case 2, but we cannot
* distinguish it from the case 1. So return
* -EREMCHG to block current operation until
* OI scrub rebuilt the OI mappings.
*/
rc = -EREMCHG;
else
rc = -ENOENT;
GOTO(put, rc);
}
if (inode->i_generation == id->oii_gen)
rc = -ENOENT;
else
rc = -EREMCHG;
}
GOTO(put, rc);
put:
if (rc != 0) {
if (!IS_ERR(inode))
iput(inode);
inode = ERR_PTR(rc);
}
return inode;
}
/**
* \retval +v: new filter_fid does not contain self-fid
* \retval 0: filter_fid_18_23, contains self-fid
* \retval -v: other failure cases
*/
int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
struct dentry *dentry, struct lu_fid *fid)
{
struct filter_fid *ff = &info->oti_ff;
struct ost_id *ostid = &info->oti_ostid;
int rc;
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
if (rc == sizeof(struct filter_fid_18_23)) {
struct filter_fid_18_23 *ff_old = (void *)ff;
ostid_set_seq(ostid, le64_to_cpu(ff_old->ff_seq));
rc = ostid_set_id(ostid, le64_to_cpu(ff_old->ff_objid));
/*
* XXX: use 0 as the index for compatibility, the caller will
* handle index related issues when necessary.
*/
if (!rc)
ostid_to_fid(fid, ostid, 0);
} else if (rc >= (int)sizeof(struct filter_fid_24_29)) {
rc = 1;
} else if (rc >= 0) {
rc = -EINVAL;
}
return rc;
}
static int osd_lma_self_repair(struct osd_thread_info *info,
struct osd_device *osd, struct inode *inode,
const struct lu_fid *fid, __u32 compat)
{
handle_t *jh;
int rc;
LASSERT(current->journal_info == NULL);
jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
osd_dto_credits_noquota[DTO_XATTR_SET]);
if (IS_ERR(jh)) {
rc = PTR_ERR(jh);
CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
osd_name(osd), rc);
return rc;
}
rc = osd_ea_fid_set(info, inode, fid, compat, 0);
if (rc != 0)
CWARN("%s: cannot self repair the LMA: rc = %d\n",
osd_name(osd), rc);
ldiskfs_journal_stop(jh);
return rc;
}
static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
{
struct osd_thread_info *info = osd_oti_get(env);
struct osd_device *osd = osd_obj2dev(obj);
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &loa->loa_lma;
struct inode *inode = obj->oo_inode;
struct dentry *dentry = &info->oti_obj_dentry;
struct lu_fid *fid = NULL;
const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
int rc;
ENTRY;
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
(void *)loa, sizeof(*loa));
if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
fid = &lma->lma_self_fid;
rc = osd_get_idif(info, inode, dentry, fid);
if (rc > 0 || (rc == -ENODATA && osd->od_index_in_idif)) {
/*
* For the given OST-object, if it has neither LMA nor
* FID in XATTR_NAME_FID, then the given FID (which is
* contained in the @obj, from client RPC for locating
* the OST-object) is trusted. We use it to generate
* the LMA.
*/
osd_lma_self_repair(info, osd, inode, rfid,
LMAC_FID_ON_OST);
RETURN(0);
}
}
if (rc < 0)
RETURN(rc);
if (rc > 0) {
rc = 0;
lustre_lma_swab(lma);
if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
(CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
S_ISREG(inode->i_mode)))) {
CWARN("%s: unsupported incompat LMA feature(s) %#x for "
"fid = "DFID", ino = %lu\n", osd_name(osd),
lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
PFID(rfid), inode->i_ino);
rc = -EOPNOTSUPP;
} else {
fid = &lma->lma_self_fid;
if (lma->lma_compat & LMAC_STRIPE_INFO &&
osd->od_is_ost)
obj->oo_pfid_in_lma = 1;
if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
!osd->od_is_ost)
lu_object_set_agent_entry(&obj->oo_dt.do_lu);
}
}
if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
if (fid_is_idif(rfid) && fid_is_idif(fid)) {
struct ost_id *oi = &info->oti_ostid;
struct lu_fid *fid1 = &info->oti_fid3;
__u32 idx = fid_idif_ost_idx(rfid);
/*
* For old IDIF, the OST index is not part of the IDIF,
* Means that different OSTs may have the same IDIFs.
* Under such case, we need to make some compatible
* check to make sure to trigger OI scrub properly.
*/
if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
/* Given @rfid is new, LMA is old. */
fid_to_ostid(fid, oi);
ostid_to_fid(fid1, oi, idx);
if (lu_fid_eq(fid1, rfid)) {
if (osd->od_index_in_idif)
osd_lma_self_repair(info, osd,
inode, rfid,
LMAC_FID_ON_OST);
RETURN(0);
}
}
}
rc = -EREMCHG;
}
RETURN(rc);
}
struct osd_check_lmv_buf {
/* please keep it as first member */
struct dir_context oclb_ctx;
struct osd_thread_info *oclb_info;
struct osd_device *oclb_dev;
int oclb_items;
bool oclb_found;
int oclb_rc;
};
/**
* It is called internally by ->iterate*() to filter out the
* local slave object's FID of the striped directory.
*
* \retval 1 found the local slave's FID
* \retval 0 continue to check next item
* \retval -ve for failure
*/
static FILLDIR_TYPE do_osd_stripe_dir_filldir(struct dir_context *buf,
const char *name, int namelen,
loff_t offset, u64 ino,
unsigned int d_type)
{
struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
struct osd_thread_info *oti = oclb->oclb_info;
struct lu_fid *fid = &oti->oti_fid3;
struct osd_inode_id *id = &oti->oti_id3;
struct osd_inode_id id2;
struct osd_device *dev = oclb->oclb_dev;
struct inode *inode;
oclb->oclb_items++;
if (name[0] == '.')
return 0;
fid_zero(fid);
sscanf(name + 1, SFID, RFID(fid));
if (!fid_is_sane(fid))
return 0;
if (osd_remote_fid(oti->oti_env, dev, fid))
return 0;
osd_id_gen(id, ino, OSD_OII_NOGEN);
inode = osd_iget(oti, dev, id, 0);
if (IS_ERR(inode)) {
oclb->oclb_rc = PTR_ERR(inode);
return PTR_ERR(inode);
}
iput(inode);
if (CFS_FAIL_CHECK(OBD_FAIL_OFD_IGET_FAIL)) {
oclb->oclb_rc = -ESTALE;
RETURN(-ESTALE);
}
osd_add_oi_cache(oti, dev, id, fid);
/* Check shard by scrub only if it has a problem with OI */
if (osd_oi_lookup(oti, dev, fid, &id2, 0) || !osd_id_eq(id, &id2))
osd_scrub_oi_insert(dev, fid, id, true);
oclb->oclb_found = true;
return 1;
}
WRAP_FILLDIR_FN(do_, osd_stripe_dir_filldir)
/*
* When lookup item under striped directory, we need to locate the master
* MDT-object of the striped directory firstly, then the client will send
* lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
* and the item's name. If the system is restored from MDT file level backup,
* then before the OI scrub completely built the OI files, the OI mappings of
* the master MDT-object and slave MDT-object may be invalid. Usually, it is
* not a problem for the master MDT-object. Because when locate the master
* MDT-object, we will do name based lookup (for the striped directory itself)
* firstly, during such process we can setup the correct OI mapping for the
* master MDT-object. But it will be trouble for the slave MDT-object. Because
* the client will not trigger name based lookup on the MDT to locate the slave
* MDT-object before locating item under the striped directory, then when
* osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
* is invalid and does not know what the right OI mapping is, then the MDT has
* to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
* the OI file, related OI mapping is unknown yet, please try again later. And
* then client will re-try the RPC again and again until related OI mapping has
* been updated. That is quite inefficient.
*
* To resolve above trouble, we will handle it as the following two cases:
*
* 1) The slave MDT-object and the master MDT-object are on different MDTs.
* It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
* is linked under /REMOTE_PARENT_DIR with the name of its FID string.
* We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
* directly. Please check osd_fid_lookup().
*
* 2) The slave MDT-object and the master MDT-object reside on the same MDT.
* Under such case, during lookup the master MDT-object, we will lookup the
* slave MDT-object via readdir against the master MDT-object, because the
* slave MDT-objects information are stored as sub-directories with the name
* "${FID}:${index}". Then when find the local slave MDT-object, its OI
* mapping will be recorded. Then subsequent osd_fid_lookup() will know
* the correct OI mapping for the slave MDT-object.
*/
static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
struct inode *inode)
{
struct dentry *dentry = &oti->oti_obj_dentry;
struct lu_buf *buf = &oti->oti_big_buf;
struct lmv_mds_md_v1 *lmv1;
struct osd_check_lmv_buf oclb = {
.oclb_ctx.actor = osd_stripe_dir_filldir,
.oclb_info = oti,
.oclb_dev = dev,
.oclb_found = false,
};
struct file *filp;
int rc = 0;
ENTRY;
/* We should use the VFS layer to create a real dentry. */
oti->oti_obj_dentry.d_inode = inode;
oti->oti_obj_dentry.d_sb = inode->i_sb;
again:
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV,
buf->lb_buf, buf->lb_len);
if (rc == -ERANGE) {
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
if (rc > 0) {
lu_buf_realloc(buf, rc);
if (buf->lb_buf == NULL)
GOTO(out, rc = -ENOMEM);
goto again;
}
}
if (unlikely(rc == 0 || rc == -ENODATA))
GOTO(out, rc = 0);
if (rc < 0)
GOTO(out, rc);
if (unlikely(buf->lb_buf == NULL)) {
lu_buf_realloc(buf, rc);
if (buf->lb_buf == NULL)
GOTO(out, rc = -ENOMEM);
goto again;
}
lmv1 = buf->lb_buf;
if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
GOTO(out, rc = 0);
filp = osd_get_filp_for_inode(oti, inode);
CFS_FAIL_CHECK_RESET(OBD_FAIL_OFD_IGET_FAIL_TO_START,
OBD_FAIL_OFD_IGET_FAIL);
do {
oclb.oclb_items = 0;
oclb.oclb_rc = 0;
rc = iterate_dir(filp, &oclb.oclb_ctx);
if (rc == 0)
rc = oclb.oclb_rc;
} while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
CFS_FAIL_CHECK_RESET(OBD_FAIL_OFD_IGET_FAIL, 0);
compat_security_file_free(filp);
out:
if (rc < 0)
CDEBUG(D_LFSCK,
"%s: cannot check LMV, ino = %lu/%u: rc = %d\n",
osd_ino2name(inode), inode->i_ino, inode->i_generation,
rc);
else
rc = 0;
RETURN(rc);
}
/**
* Is object in scrub inconsistent/stale list.
*
* \a scrub has two lists, os_inconsistent_items contains mappings to fix, while
* os_stale_items contains mappings failed to fix.
*/
static bool fid_in_scrub_list(struct lustre_scrub *scrub,
const struct list_head *list,
const struct lu_fid *fid)
{
struct osd_inconsistent_item *oii;
if (list_empty(list))
return false;
spin_lock(&scrub->os_lock);
list_for_each_entry(oii, list, oii_list) {
if (lu_fid_eq(fid, &oii->oii_cache.oic_fid)) {
spin_unlock(&scrub->os_lock);
return true;
}
}
spin_unlock(&scrub->os_lock);
return false;
}
static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
const struct lu_fid *fid,
const struct lu_object_conf *conf)
{
struct osd_thread_info *info;
struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
struct osd_device *dev;
struct osd_idmap_cache *oic;
struct osd_inode_id *id;
struct inode *inode = NULL;
struct lustre_scrub *scrub;
struct scrub_file *sf;
__u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
__u32 saved_ino;
__u32 saved_gen;
int result = 0;
int rc1 = 0;
bool remote = false;
bool trusted = true;
bool updated = false;
bool checked = false;
bool stale = false;
ENTRY;
LINVRNT(osd_invariant(obj));
LASSERT(obj->oo_inode == NULL);
if (fid_is_sane(fid) == 0) {
CERROR("%s: invalid FID "DFID"\n", ldev->ld_obd->obd_name,
PFID(fid));
dump_stack();
RETURN(-EINVAL);
}
dev = osd_dev(ldev);
scrub = &dev->od_scrub.os_scrub;
sf = &scrub->os_file;
info = osd_oti_get(env);
LASSERT(info);
oic = &info->oti_cache;
if (CFS_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
RETURN(-ENOENT);
/*
* For the object is created as locking anchor, or for the object to
* be created on disk. No need to osd_oi_lookup() at here because FID
* shouldn't never be re-used, if it's really a duplicate FID from
* unexpected reason, we should be able to detect it later by calling
* do_create->osd_oi_insert().
*/
if (conf && conf->loc_flags & LOC_F_NEW)
RETURN(0);
/* Search order: 1. per-thread cache. */
if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
id = &oic->oic_lid;
goto iget;
}
/* Search order: 2. OI scrub pending list. */
id = &info->oti_id;
memset(id, 0, sizeof(struct osd_inode_id));
if (fid_in_scrub_list(scrub, &scrub->os_inconsistent_items, fid) &&
scrub->os_running)
RETURN(-EINPROGRESS);
stale = fid_in_scrub_list(scrub, &scrub->os_stale_items, fid);
if (stale && CFS_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_STALE))
RETURN(-ESTALE);
/*
* The OI mapping in the OI file can be updated by the OI scrub
* when we locate the inode via FID. So it may be not trustable.
*/
trusted = false;
/* Search order: 3. OI files. */
result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
if (result == -ENOENT) {
if (!fid_is_norm(fid) ||
fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
!ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
sf->sf_oi_bitmap))
GOTO(out, result = 0);
goto trigger;
}
/* -ESTALE is returned if inode of OST object doesn't exist */
if (result == -ESTALE &&
fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
GOTO(out, result = 0);
}
if (result)
GOTO(out, result);
iget:
obj->oo_inode = NULL;
/* for later passes through checks, not true on first pass */
if (!IS_ERR_OR_NULL(inode))
iput(inode);
inode = osd_iget_check(info, dev, fid, id, trusted);
if (!IS_ERR(inode)) {
obj->oo_inode = inode;
result = 0;
if (remote)
goto trigger;
goto check_lma;
}
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_SCRUB_STALE))
goto trigger;
result = PTR_ERR(inode);
if (result == -ENOENT || result == -ESTALE)
GOTO(out, result = 0);
if (result != -EREMCHG)
GOTO(out, result);
trigger:
/* don't trigger repeatedly for stale mapping */
if (stale)
GOTO(out, result = -ESTALE);
/*
* We still have chance to get the valid inode: for the
* object which is referenced by remote name entry, the
* object on the local MDT will be linked under the dir
* of "/REMOTE_PARENT_DIR" with its FID string as name.
*
* We do not know whether the object for the given FID
* is referenced by some remote name entry or not, and
* especially for DNE II, a multiple-linked object may
* have many name entries reside on many MDTs.
*
* To simplify the operation, OSD will not distinguish
* more, just lookup "/REMOTE_PARENT_DIR". Usually, it
* only happened for the RPC from other MDT during the
* OI scrub, or for the client side RPC with FID only,
* such as FID to path, or from old connected client.
*/
if (!remote) {
rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
if (!rc1) {
remote = true;
trusted = true;
flags |= SS_AUTO_PARTIAL;
flags &= ~SS_AUTO_FULL;
goto iget;
}
}
if (scrub->os_running) {
if (scrub->os_partial_scan && !scrub->os_in_join)
goto join;
if (IS_ERR_OR_NULL(inode) || result) {
osd_scrub_oi_insert(dev, fid, id, result == -ENOENT);
GOTO(out, result = -EINPROGRESS);
}
LASSERT(remote);
LASSERT(obj->oo_inode == inode);
osd_scrub_oi_insert(dev, fid, id, true);
goto found;
}
if (dev->od_scrub.os_scrub.os_auto_scrub_interval == AS_NEVER) {
if (!remote)
GOTO(out, result = -EREMCHG);
LASSERT(!result);
LASSERT(obj->oo_inode == inode);
osd_add_oi_cache(info, dev, id, fid);
goto found;
}
join:
if (IS_ERR_OR_NULL(inode) || result)
osd_scrub_oi_insert(dev, fid, id, result == -ENOENT);
rc1 = osd_scrub_start(env, dev, flags);
CDEBUG_LIMIT(D_LFSCK | D_CONSOLE | D_WARNING,
"%s: trigger OI scrub by RPC for "DFID"/%u with flags %#x: rc = %d\n",
osd_name(dev), PFID(fid), id->oii_ino, flags, rc1);
if (rc1 && rc1 != -EALREADY)
GOTO(out, result = -EREMCHG);
if (IS_ERR_OR_NULL(inode) || result)
GOTO(out, result = -EINPROGRESS);
LASSERT(remote);
LASSERT(obj->oo_inode == inode);
goto found;
check_lma:
checked = true;
if (unlikely(obj->oo_header))
goto found;
result = osd_check_lma(env, obj);
if (!result)
goto found;
LASSERTF(id->oii_ino == inode->i_ino &&
id->oii_gen == inode->i_generation,
"locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
PFID(fid), id->oii_ino, id->oii_gen,
inode->i_ino, inode->i_generation);
saved_ino = inode->i_ino;
saved_gen = inode->i_generation;
if (unlikely(result == -ENODATA)) {
/*
* If the OI scrub updated the OI mapping by race, it
* must be valid. Trust the inode that has no LMA EA.
*/
if (updated)
goto found;
result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
if (!result) {
/*
* The OI mapping is still there, the inode is still
* valid. It is just becaues the inode has no LMA EA.
*/
if (saved_ino == id->oii_ino &&
saved_gen == id->oii_gen)
goto found;
/*
* It is the OI scrub updated the OI mapping by race.
* The new OI mapping must be valid.
*/
trusted = true;
updated = true;
goto iget;
}
/*
* "result == -ENOENT" means that the OI mappinghas been
* removed by race, so the inode belongs to other object.
*
* Others error can be returned directly.
*/
if (result == -ENOENT) {
obj->oo_inode = NULL;
result = 0;
}
}
if (result != -EREMCHG)
GOTO(out, result);
LASSERT(!updated);
/*
* if two OST objects map to the same inode, and inode mode is
* (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666), which means it's
* reserved by precreate, and not written yet, in this case, don't
* set inode for the object whose FID mismatch, so that it can create
* inode and not block precreate.
*/
if (fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) &&
inode->i_mode == (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666)) {
obj->oo_inode = NULL;
GOTO(out, result = 0);
}
result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
/*
* "result == -ENOENT" means the cached OI mapping has been removed
* from the OI file by race, above inode belongs to other object.
*/
if (result == -ENOENT) {
obj->oo_inode = NULL;
GOTO(out, result = 0);
}
if (result)
GOTO(out, result);
if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
result = -EREMCHG;
osd_scrub_refresh_mapping(info, dev, fid, id, DTO_INDEX_DELETE,
true, 0, NULL);
goto trigger;
}
/*
* It is the OI scrub updated the OI mapping by race.
* The new OI mapping must be valid.
*/
trusted = true;
updated = true;
goto iget;
found:
if (!checked) {
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
if (!result) {
if (lma->lma_compat & LMAC_STRIPE_INFO &&
dev->od_is_ost)
obj->oo_pfid_in_lma = 1;
if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
!dev->od_is_ost)
lu_object_set_agent_entry(&obj->oo_dt.do_lu);
} else if (result != -ENODATA) {
GOTO(out, result);
}
}
obj->oo_compat_dot_created = 1;
obj->oo_compat_dotdot_created = 1;
if (S_ISDIR(inode->i_mode) &&
(flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
osd_check_lmv(info, dev, inode);
result = osd_attach_jinode(inode);
if (result)
GOTO(out, result);
if (!ldiskfs_pdo)
GOTO(out, result = 0);
LASSERT(!obj->oo_hl_head);
obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
out:
if (!result && stale)
osd_scrub_oi_resurrect(scrub, fid);
if (result || !obj->oo_inode) {
if (!IS_ERR_OR_NULL(inode))
iput(inode);
obj->oo_inode = NULL;
if (trusted)
fid_zero(&oic->oic_fid);
}
LINVRNT(osd_invariant(obj));
return result;
}
/*
* Concurrency: shouldn't matter.
*/
static void osd_object_init0(struct osd_object *obj)
{
LASSERT(obj->oo_inode != NULL);
obj->oo_dt.do_body_ops = &osd_body_ops;
obj->oo_dt.do_lu.lo_header->loh_attr |=
(LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
static int osd_object_init(const struct lu_env *env, struct lu_object *l,
const struct lu_object_conf *conf)
{
struct osd_object *obj = osd_obj(l);
int result;
LINVRNT(osd_invariant(obj));
if (CFS_FAIL_PRECHECK(OBD_FAIL_MDS_LLOG_UMOUNT_RACE) &&
cfs_fail_val == 2) {
struct osd_thread_info *info = osd_oti_get(env);
struct osd_idmap_cache *oic = &info->oti_cache;
/* invalidate thread cache */
memset(&oic->oic_fid, 0, sizeof(oic->oic_fid));
}
if (fid_is_otable_it(&l->lo_header->loh_fid)) {
obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
l->lo_header->loh_attr |= LOHA_EXISTS;
return 0;
}
result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
obj->oo_dt.do_body_ops = &osd_body_ops_new;
if (result == 0 && obj->oo_inode != NULL) {
struct osd_thread_info *oti = osd_oti_get(env);
struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
osd_object_init0(obj);
if (unlikely(obj->oo_header))
return 0;
result = osd_get_lma(oti, obj->oo_inode,
&oti->oti_obj_dentry, loa);
if (!result) {
/*
* Convert LMAI flags to lustre LMA flags
* and cache it to oo_lma_flags
*/
obj->oo_lma_flags =
lma_to_lustre_flags(loa->loa_lma.lma_incompat);
} else if (result == -ENODATA) {
result = 0;
}
}
atomic_set(&obj->oo_dirent_count, LU_DIRENT_COUNT_UNSET);
LINVRNT(osd_invariant(obj));
return result;
}
/*
* The first part of oxe_buf is xattr name, and is '\0' terminated.
* The left part is for value, binary mode.
*/
struct osd_xattr_entry {
struct list_head oxe_list;
size_t oxe_len;
size_t oxe_namelen;
bool oxe_exist;
struct rcu_head oxe_rcu;
char oxe_buf[];
};
static int osd_oxc_get(struct osd_object *obj, const char *name,
struct lu_buf *buf)
{
struct osd_xattr_entry *tmp;
struct osd_xattr_entry *oxe = NULL;
size_t namelen = strlen(name);
int rc;
rcu_read_lock();
list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
if (namelen == tmp->oxe_namelen &&
strncmp(name, tmp->oxe_buf, namelen) == 0) {
oxe = tmp;
break;
}
}
if (oxe == NULL)
GOTO(out, rc = -ENOENT);
if (!oxe->oxe_exist)
GOTO(out, rc = -ENODATA);
/* vallen */
rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
LASSERT(rc > 0);
if (buf->lb_buf == NULL)
GOTO(out, rc);
if (buf->lb_len < rc)
GOTO(out, rc = -ERANGE);
memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
out:
rcu_read_unlock();
return rc;
}
static void osd_oxc_free(struct rcu_head *head)
{
struct osd_xattr_entry *oxe;
oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
OBD_FREE_LARGE(oxe, oxe->oxe_len);
}
static void osd_oxc_add(struct osd_object *obj, const char *name,
const char *buf, int buflen)
{
struct osd_xattr_entry *oxe;
struct osd_xattr_entry *old = NULL;
struct osd_xattr_entry *tmp;
size_t namelen = strlen(name);
size_t len = sizeof(*oxe) + namelen + 1 + buflen;
OBD_ALLOC_LARGE(oxe, len);
if (oxe == NULL)
return;
INIT_LIST_HEAD(&oxe->oxe_list);
oxe->oxe_len = len;
oxe->oxe_namelen = namelen;
memcpy(oxe->oxe_buf, name, namelen);
if (buflen > 0) {
LASSERT(buf != NULL);
memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
oxe->oxe_exist = true;
} else {
oxe->oxe_exist = false;
}
/* this should be rarely called, just remove old and add new */
spin_lock(&obj->oo_guard);
list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
if (namelen == tmp->oxe_namelen &&
strncmp(name, tmp->oxe_buf, namelen) == 0) {
old = tmp;
break;
}
}
if (old != NULL) {
list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
call_rcu(&old->oxe_rcu, osd_oxc_free);
} else {
list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
}
spin_unlock(&obj->oo_guard);
}
static void osd_oxc_del(struct osd_object *obj, const char *name)
{
struct osd_xattr_entry *oxe;
size_t namelen = strlen(name);
spin_lock(&obj->oo_guard);
list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
if (namelen == oxe->oxe_namelen &&
strncmp(name, oxe->oxe_buf, namelen) == 0) {
list_del_rcu(&oxe->oxe_list);
call_rcu(&oxe->oxe_rcu, osd_oxc_free);
break;
}
}
spin_unlock(&obj->oo_guard);
}
static void osd_oxc_fini(struct osd_object *obj)
{
struct osd_xattr_entry *oxe, *next;
list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
list_del(&oxe->oxe_list);
OBD_FREE_LARGE(oxe, oxe->oxe_len);
}
}
/*
* Concurrency: no concurrent access is possible that late in object
* life-cycle.
*/
static void osd_object_free(const struct lu_env *env, struct lu_object *l)
{
struct osd_object *obj = osd_obj(l);
struct lu_object_header *h = obj->oo_header;
LINVRNT(osd_invariant(obj));
osd_oxc_fini(obj);
dt_object_fini(&obj->oo_dt);
if (obj->oo_hl_head != NULL)
ldiskfs_htree_lock_head_free(obj->oo_hl_head);
OBD_FREE_PTR_ARRAY(obj->oo_brm, OSD_BRM_MAX);
/* obj doesn't contain an lu_object_header, so we don't need call_rcu */
OBD_FREE_PTR(obj);
if (unlikely(h))
lu_object_header_free(h);
}
/*
* Concurrency: no concurrent access is possible that late in object
* life-cycle.
*/
static void osd_index_fini(struct osd_object *o)
{
struct iam_container *bag;
if (o->oo_dir != NULL) {
bag = &o->oo_dir->od_container;
if (o->oo_inode != NULL) {
if (bag->ic_object == o->oo_inode)
iam_container_fini(bag);
}
OBD_FREE_PTR(o->oo_dir);
o->oo_dir = NULL;
}
}
enum {
OSD_TXN_OI_DELETE_CREDITS = 20,
OSD_TXN_INODE_DELETE_CREDITS = 20
};
/*
* Journal
*/
#if OSD_THANDLE_STATS
/**
* Set time when the handle is allocated
*/
static void osd_th_alloced(struct osd_thandle *oth)
{
oth->oth_alloced = ktime_get();
}
/**
* Set time when the handle started
*/
static void osd_th_started(struct osd_thandle *oth)
{
oth->oth_started = ktime_get();
}
/**
* Check whether the we deal with this handle for too long.
*/
static void __osd_th_check_slow(void *oth, struct osd_device *dev,
ktime_t alloced, ktime_t started,
ktime_t closed)
{
ktime_t now = ktime_get();
LASSERT(dev != NULL);
lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
ktime_us_delta(started, alloced));
lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
ktime_us_delta(closed, started));
lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
ktime_us_delta(now, closed));
if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
oth, now, alloced, started, closed);
dump_stack();
}
}
#define OSD_CHECK_SLOW_TH(oth, dev, expr) \
{ \
ktime_t __closed = ktime_get(); \
ktime_t __alloced = oth->oth_alloced; \
ktime_t __started = oth->oth_started; \
\
expr; \
__osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
}
#else /* OSD_THANDLE_STATS */
#define osd_th_alloced(h) do {} while(0)
#define osd_th_started(h) do {} while(0)
#define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
#endif /* OSD_THANDLE_STATS */
/*
* in some cases (like overstriped files) the same operations on the same
* objects are declared many times and this may lead to huge number of
* credits which can be a problem and/or cause performance degradation.
* this function is to remember what declarations have been made within
* a given thandle and then skip duplications.
* limit it's scope so that regular small transactions don't need all
* this overhead with allocations, lists.
* also, limit scope to the specific objects like llogs, etc.
*/
static inline bool osd_check_special_fid(const struct lu_fid *f)
{
if (fid_seq_is_llog(f->f_seq))
return true;
if (f->f_seq == FID_SEQ_LOCAL_FILE &&
f->f_oid == MDD_LOV_OBJ_OID)
return true;
return false;
}
bool osd_tx_was_declared(const struct lu_env *env, struct osd_thandle *oth,
struct dt_object *dt, enum dt_txn_op op, loff_t pos)
{
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_obj_declare *old;
if (osd->od_is_ost)
return false;
/* small transactions don't need this overhead */
if (oti->oti_declare_ops[DTO_OBJECT_CREATE] < 10 &&
oti->oti_declare_ops[DTO_WRITE_BASE] < 10)
return false;
if (osd_check_special_fid(fid) == 0)
return false;
list_for_each_entry(old, &oth->ot_declare_list, old_list) {
if (old->old_op == op && old->old_pos == pos &&
lu_fid_eq(&old->old_fid, fid))
return true;
}
OBD_ALLOC_PTR(old);
if (unlikely(old == NULL))
return false;
old->old_fid = *lu_object_fid(&dt->do_lu);
old->old_op = op;
old->old_pos = pos;
list_add(&old->old_list, &oth->ot_declare_list);
return false;
}
static void osd_tx_declaration_free(struct osd_thandle *oth)
{
struct osd_obj_declare *old, *tmp;
list_for_each_entry_safe(old, tmp, &oth->ot_declare_list, old_list) {
list_del_init(&old->old_list);
OBD_FREE_PTR(old);
}
}
/*
* Concurrency: doesn't access mutable data.
*/
static int osd_param_is_not_sane(const struct osd_device *dev,
const struct thandle *th)
{
struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
return oh->ot_credits > osd_transaction_size(dev);
}
/*
* Concurrency: shouldn't matter.
*/
static void osd_trans_commit_complete(struct osd_thandle *oh, int error)
{
struct thandle *th = &oh->ot_super;
struct lu_device *lud = &th->th_dev->dd_lu_dev;
struct osd_device *osd = osd_dev(lud);
struct dt_txn_commit_cb *dcb, *tmp;
LASSERT(oh->ot_handle == NULL);
if (error)
CERROR("%s: transaction commit error: rc = %d\n",
osd_name(osd), error);
/* call per-transaction callbacks if any */
list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
dcb_linkage) {
LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
"%s: commit callback entry: magic=%x name='%s'\n",
osd_name(osd), dcb->dcb_magic, dcb->dcb_name);
list_del_init(&dcb->dcb_linkage);
dcb->dcb_func(NULL, th, dcb, error);
}
if (atomic_dec_and_test(&osd->od_commit_cb_in_flight))
wake_up(&osd->od_commit_cb_done);
th->th_dev = NULL;
OBD_FREE_PTR(oh);
}
#ifdef HAVE_S_TXN_CB_MAP
static inline void osd_trans_commit_cb(struct osd_thandle *oh,
journal_t *journal,
transaction_t *transaction, int error)
{
osd_trans_commit_complete(oh, error);
}
static int cmp_key_txn(const void *transaction, const struct rb_node *node)
{
struct osd_thandle *oh = container_of(node, typeof(*oh), ot_node);
return (transaction - (void *)oh->ot_transaction);
}
static int cmp_node_txn(struct rb_node *left, const struct rb_node *node)
{
struct osd_thandle *oh;
oh = container_of(left, struct osd_thandle, ot_node);
return cmp_key_txn(oh->ot_transaction, node);
}
static void osd_trans_txn_cb(struct ldiskfs_sb_info *sbi, journal_t *journal,
transaction_t *transaction)
{
struct rb_node *node;
struct osd_thandle *top = NULL;
struct osd_thandle *oh;
int error = is_journal_aborted(journal);
spin_lock(&sbi->s_txn_cb_lock);
node = rb_find(transaction, &sbi->s_txn_cb_map, cmp_key_txn);
if (!node)
goto out;
rb_erase(node, &sbi->s_txn_cb_map);
top = container_of(node, struct osd_thandle, ot_node);
top->ot_transaction = NULL;
while ((oh = list_first_entry_or_null(&top->ot_cblist,
struct osd_thandle,
ot_cblist)) != NULL) {
list_del_init(&oh->ot_cblist);
oh->ot_transaction = NULL;
spin_unlock(&sbi->s_txn_cb_lock);
/* a callback could sleep */
osd_trans_commit_cb(oh, journal, transaction, error);
spin_lock(&sbi->s_txn_cb_lock);
}
out:
spin_unlock(&sbi->s_txn_cb_lock);
if (top)
osd_trans_commit_cb(top, journal, transaction, error);
}
static void osd_trans_register_callback(struct osd_device *osd,
struct osd_thandle *oh)
{
struct ldiskfs_sb_info *sbi = LDISKFS_SB(osd_sb(osd));
struct rb_node *node;
struct osd_thandle *top = NULL;
transaction_t *transaction = NULL;
if (oh && oh->ot_handle)
transaction = oh->ot_handle->h_transaction;
spin_lock(&sbi->s_txn_cb_lock);
oh->ot_transaction = transaction;
node = rb_find_add(&oh->ot_node, &sbi->s_txn_cb_map, cmp_node_txn);
if (node) {
/* found existing: add additional osd to be notified */
top = container_of(node, struct osd_thandle, ot_node);
list_add_tail(&oh->ot_cblist, &top->ot_cblist);
}
spin_unlock(&sbi->s_txn_cb_lock);
}
static inline void osd_trans_txn_cb_handler(struct super_block *sb)
{
struct ldiskfs_sb_info *sbi = LDISKFS_SB(sb);
if (!sbi->s_txn_cb)
sbi->s_txn_cb = osd_trans_txn_cb;
}
static inline void osd_trans_txn_cb_init(struct osd_thandle *oh)
{
INIT_LIST_HEAD(&oh->ot_cblist);
}
#else /* !HAVE_S_TXN_CB_MAP */
static inline void osd_trans_commit_cb(struct super_block *sb,
struct ldiskfs_journal_cb_entry *jcb,
int error)
{
struct osd_thandle *oh = container_of(jcb, struct osd_thandle, ot_jcb);
osd_trans_commit_complete(oh, error);
}
static inline void osd_trans_register_callback(struct osd_device *osd,
struct osd_thandle *oh)
{
ldiskfs_journal_callback_add(oh->ot_handle, osd_trans_commit_cb,
&oh->ot_jcb);
}
static inline void osd_trans_txn_cb_handler(struct super_block *sb)
{
}
static inline void osd_trans_txn_cb_init(struct osd_thandle *oh)
{
}
#endif /* HAVE_S_TXN_CB_MAP */
static struct thandle *osd_trans_create(const struct lu_env *env,
struct dt_device *d)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_iobuf *iobuf = &oti->oti_iobuf;
struct super_block *sb = osd_sb(osd_dt_dev(d));
struct osd_thandle *oh;
struct thandle *th;
ENTRY;
if (d->dd_rdonly) {
CERROR("%s: someone try to start transaction under "
"readonly mode, should be disabled.\n",
osd_name(osd_dt_dev(d)));
dump_stack();
RETURN(ERR_PTR(-EROFS));
}
/* on pending IO in this thread should left from prev. request */
LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
sb_start_write(sb);
OBD_ALLOC_GFP(oh, sizeof(*oh), GFP_NOFS);
if (!oh) {
sb_end_write(sb);
RETURN(ERR_PTR(-ENOMEM));
}
oh->ot_quota_trans = &oti->oti_quota_trans;
memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
osd_trans_txn_cb_handler(sb);
th = &oh->ot_super;
th->th_dev = d;
th->th_result = 0;
oh->ot_credits = 0;
oh->oh_declared_ext = 0;
oh->ot_quota_credits_accounted = 0;
osd_trans_txn_cb_init(oh);
INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
INIT_LIST_HEAD(&oh->ot_trunc_locks);
INIT_LIST_HEAD(&oh->ot_declare_list);
osd_th_alloced(oh);
memset(oti->oti_declare_ops, 0,
sizeof(oti->oti_declare_ops));
memset(oti->oti_declare_ops_cred, 0,
sizeof(oti->oti_declare_ops_cred));
memset(oti->oti_declare_ops_used, 0,
sizeof(oti->oti_declare_ops_used));
oti->oti_ins_cache_depth++;
RETURN(th);
}
void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_thandle *oh;
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh != NULL);
CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
oti->oti_declare_ops[OSD_OT_CREATE],
oti->oti_declare_ops_cred[OSD_OT_CREATE],
oti->oti_declare_ops_used[OSD_OT_CREATE],
oti->oti_declare_ops[OSD_OT_DESTROY],
oti->oti_declare_ops_cred[OSD_OT_DESTROY],
oti->oti_declare_ops_used[OSD_OT_DESTROY]);
CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
oti->oti_declare_ops[OSD_OT_ATTR_SET],
oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
oti->oti_declare_ops[OSD_OT_XATTR_SET],
oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
oti->oti_declare_ops[OSD_OT_WRITE],
oti->oti_declare_ops_cred[OSD_OT_WRITE],
oti->oti_declare_ops_used[OSD_OT_WRITE],
oti->oti_declare_ops[OSD_OT_PUNCH],
oti->oti_declare_ops_cred[OSD_OT_PUNCH],
oti->oti_declare_ops_used[OSD_OT_PUNCH],
oti->oti_declare_ops[OSD_OT_QUOTA],
oti->oti_declare_ops_cred[OSD_OT_QUOTA],
oti->oti_declare_ops_used[OSD_OT_QUOTA]);
CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
oti->oti_declare_ops[OSD_OT_INSERT],
oti->oti_declare_ops_cred[OSD_OT_INSERT],
oti->oti_declare_ops_used[OSD_OT_INSERT],
oti->oti_declare_ops[OSD_OT_DELETE],
oti->oti_declare_ops_cred[OSD_OT_DELETE],
oti->oti_declare_ops_used[OSD_OT_DELETE]);
CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
oti->oti_declare_ops[OSD_OT_REF_ADD],
oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
oti->oti_declare_ops_used[OSD_OT_REF_ADD],
oti->oti_declare_ops[OSD_OT_REF_DEL],
oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
}
#ifdef HAVE_LDISKFS_JOURNAL_ENSURE_CREDITS
static void osd_ldiskfs_credits_for_revoke(struct osd_device *osd,
struct osd_thandle *oh,
int *credits, int *revoke)
{
int blocks = LDISKFS_MAX_EXTENT_DEPTH * oh->oh_declared_ext;
*revoke += ldiskfs_trans_default_revoke_credits(osd_sb(osd)) + blocks;
}
#else
static void osd_ldiskfs_credits_for_revoke(struct osd_device *osd,
struct osd_thandle *oh,
int *credits, int *revoke)
{
struct journal_s *journal = LDISKFS_SB(osd_sb(osd))->s_journal;
int blocks, jbsize, records_per_block;
blocks = LDISKFS_MAX_EXTENT_DEPTH * oh->oh_declared_ext;
jbsize = journal->j_blocksize;
jbsize -= sizeof(struct jbd2_journal_block_tail) +
sizeof(jbd2_journal_revoke_header_t);
records_per_block = jbsize / 8;
*credits += (blocks + records_per_block - 1) / records_per_block;
}
#endif
/*
* Concurrency: shouldn't matter.
*/
static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
struct thandle *th)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_device *dev = osd_dt_dev(d);
handle_t *jh;
struct osd_thandle *oh;
int rc, revoke = 0;
ENTRY;
LASSERT(current->journal_info == NULL);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh);
LASSERT(!oh->ot_handle);
if (unlikely(ldiskfs_track_declares_assert))
LASSERT(dt_thread_no_locks(env));
rc = dt_txn_hook_start(env, d, th);
if (rc != 0)
GOTO(out, rc);
if (unlikely(osd_param_is_not_sane(dev, th))) {
static unsigned long last_printed;
static int last_credits;
lprocfs_counter_add(dev->od_stats,
LPROC_OSD_TOO_MANY_CREDITS, 1);
/*
* don't make noise on a tiny testing systems
* actual credits misuse will be caught anyway
*/
if (last_credits != oh->ot_credits &&
time_after(jiffies, last_printed +
cfs_time_seconds(60)) &&
osd_transaction_size(dev) > 512) {
CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
oh->ot_credits, osd_transaction_size(dev));
osd_trans_dump_creds(env, th);
dump_stack();
last_credits = oh->ot_credits;
last_printed = jiffies;
}
/*
* XXX Limit the credits to 'max_transaction_buffers', and
* let the underlying filesystem to catch the error if
* we really need so many credits.
*
* This should be removed when we can calculate the
* credits precisely.
*/
oh->ot_credits = osd_transaction_size(dev);
} else if (ldiskfs_track_declares_assert != 0) {
/*
* reserve few credits to prevent an assertion in JBD
* our debugging mechanism will be able to detected
* overuse. this can help to debug single-update
* transactions
*/
oh->ot_credits += 10;
if (unlikely(osd_param_is_not_sane(dev, th)))
oh->ot_credits = osd_transaction_size(dev);
}
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_TXN_START))
GOTO(out, rc = -EIO);
/*
* we ignore quota checks for system-owned files, but still
* need to count blocks for uid/gid/projid
*/
osd_trans_declare_op(env, oh, OSD_OT_QUOTA, 3);
/*
* XXX temporary stuff. Some abstraction layer should
* be used.
*/
osd_ldiskfs_credits_for_revoke(dev, oh, &oh->ot_credits, &revoke);
jh = osd_journal_start_with_revoke(osd_sb(dev), LDISKFS_HT_MISC,
oh->ot_credits, revoke);
osd_th_started(oh);
if (!IS_ERR(jh)) {
oh->ot_handle = jh;
LASSERT(oti->oti_txns == 0);
atomic_inc(&dev->od_commit_cb_in_flight);
oti->oti_txns++;
rc = 0;
} else {
rc = PTR_ERR(jh);
}
out:
RETURN(rc);
}
static int osd_seq_exists(const struct lu_env *env,
struct osd_device *osd, u64 seq)
{
struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
struct seq_server_site *ss = osd_seq_site(osd);
int rc;
ENTRY;
LASSERT(ss != NULL);
LASSERT(ss->ss_server_fld != NULL);
rc = osd_fld_lookup(env, osd, seq, range);
if (rc != 0) {
if (rc != -ENOENT)
CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
osd_name(osd), seq, rc);
RETURN(0);
}
RETURN(ss->ss_node_id == range->lsr_index);
}
static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
{
struct dt_txn_commit_cb *dcb;
struct dt_txn_commit_cb *tmp;
/* call per-transaction stop callbacks if any */
list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
dcb_linkage) {
LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
"commit callback entry: magic=%x name='%s'\n",
dcb->dcb_magic, dcb->dcb_name);
list_del_init(&dcb->dcb_linkage);
dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
}
}
/*
* Concurrency: shouldn't matter.
*/
static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
struct thandle *th)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_thandle *oh;
struct osd_iobuf *iobuf = &oti->oti_iobuf;
struct osd_device *osd = osd_dt_dev(th->th_dev);
struct qsd_instance *qsd = osd_def_qsd(osd);
struct lquota_trans *qtrans;
LIST_HEAD(truncates);
int rc = 0, remove_agents = 0;
ENTRY;
oh = container_of(th, struct osd_thandle, ot_super);
remove_agents = oh->ot_remove_agents;
qtrans = oh->ot_quota_trans;
oh->ot_quota_trans = NULL;
osd_tx_declaration_free(oh);
/* move locks to local list, stop tx, execute truncates */
list_splice(&oh->ot_trunc_locks, &truncates);
if (oh->ot_handle != NULL) {
int rc2;
handle_t *handle = oh->ot_handle;
/*
* add commit callback
* notice we don't do this in osd_trans_start()
* as underlying transaction can change during truncate
*/
osd_trans_register_callback(osd, oh);
LASSERT(oti->oti_txns == 1);
oti->oti_txns--;
rc = dt_txn_hook_stop(env, th);
if (rc != 0)
CERROR("%s: failed in transaction hook: rc = %d\n",
osd_name(osd), rc);
osd_trans_stop_cb(oh, rc);
/* hook functions might modify th_sync */
handle->h_sync = th->th_sync;
oh->ot_handle = NULL;
OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(handle));
if (rc2 != 0)
CERROR("%s: failed to stop transaction: rc = %d\n",
osd_name(osd), rc2);
if (!rc)
rc = rc2;
/* We preserve the origin behavior of ignoring any
* failures with the underlying punch / truncate
* operation. We do record for debugging if an error
* does occur in the lctl dk logs.
*/
rc2 = osd_process_truncates(env, &truncates);
if (rc2 != 0)
CERROR("%s: failed truncate process: rc = %d\n",
osd_name(osd), rc2);
} else {
osd_trans_stop_cb(oh, th->th_result);
OBD_FREE_PTR(oh);
}
osd_trunc_unlock_all(env, &truncates);
/* inform the quota slave device that the transaction is stopping */
qsd_op_end(env, qsd, qtrans);
/*
* as we want IO to journal and data IO be concurrent, we don't block
* awaiting data IO completion in osd_do_bio(), instead we wait here
* once transaction is submitted to the journal. all reqular requests
* don't do direct IO (except read/write), thus this wait_event becomes
* no-op for them.
*
* IMPORTANT: we have to wait till any IO submited by the thread is
* completed otherwise iobuf may be corrupted by different request
*/
io_wait_event(iobuf->dr_wait,
atomic_read(&iobuf->dr_numreqs) == 0);
if (!rc)
rc = iobuf->dr_error;
osd_fini_iobuf(osd, iobuf);
if (unlikely(remove_agents != 0))
osd_process_scheduled_agent_removals(env, osd);
LASSERT(oti->oti_ins_cache_depth > 0);
oti->oti_ins_cache_depth--;
/* reset OI cache for safety */
if (oti->oti_ins_cache_depth == 0)
oti->oti_ins_cache_used = 0;
sb_end_write(osd_sb(osd));
RETURN(rc);
}
static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
{
struct osd_thandle *oh = container_of(th, struct osd_thandle,
ot_super);
LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
LASSERT(dcb->dcb_func);
if (dcb->dcb_flags & DCB_TRANS_STOP)
list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
else
list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
return 0;
}
static void osd_quota_refresh(const struct lu_env *env, struct qsd_instance *qsd,
__u64 projid, qid_t uid, qid_t gid)
{
struct osd_thread_info *info = osd_oti_get(env);
struct lquota_id_info *qi = &info->oti_qi;
if (!qsd)
return;
/* Release granted quota to master if necessary */
qi->lqi_id.qid_uid = uid;
qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
qi->lqi_id.qid_uid = gid;
qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
qi->lqi_id.qid_uid = projid;
qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
}
static void osd_drop_preallocated_space(struct osd_object *o)
{
struct inode *inode = o->oo_inode;
struct address_space *mapping = inode->i_mapping;
struct page *page;
int rc;
/*
* we have to deallocate the space preallocated in
* osd_ldiskfs_write_fast() because e2fsck can not
* handle the orphan list (where we put inodes with
* preallocated space) properly and e2fsck is used
* in testing to verify filesystem's consitency.
* ext4 on its own can handle the orphan list doing
* deallocation at mount.
*/
inode_lock(inode);
rc = ldiskfs_truncate(inode);
inode_unlock(inode);
if (rc) {
CERROR("%s: can't truncate: rc=%d\n",
osd_obj2dev(o)->od_svname, rc);
return;
}
LASSERT(list_empty(&LDISKFS_I(inode)->i_orphan));
if ((i_size_read(inode) & PAGE_MASK) == 0)
return;
/*
* we need to drop jbd buffers on the last partial page,
* otherwise ext4_invalidatepage() makes a warning with
* a backtrace.
* XXX: support for sub-page buffers
*/
page = find_or_create_page(mapping, i_size_read(inode) >> PAGE_SHIFT,
mapping_gfp_constraint(mapping, ~__GFP_FS));
if (!page)
return;
rc = osd_jbd_invalidate_page(LDISKFS_SB(inode->i_sb)->s_journal,
page, 0, PAGE_SIZE);
LASSERTF(rc == 0, " last page %lu %s%s rc=%d\n",
folio_index_page(page),
PageChecked(page) ? "C" : "", PageDirty(page) ? "D" : "", rc);
unlock_page(page);
put_page(page);
}
/*
* Called just before object is freed. Releases all resources except for
* object itself (that is released by osd_object_free()).
*
* Concurrency: no concurrent access is possible that late in object
* life-cycle.
*/
static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
{
struct osd_object *obj = osd_obj(l);
struct osd_device *osd = osd_obj2dev(obj);
struct inode *inode = obj->oo_inode;
__u64 projid;
qid_t uid;
qid_t gid;
LINVRNT(osd_invariant(obj));
/*
* If object is unlinked remove fid->ino mapping from object index.
*/
osd_index_fini(obj);
if (!inode)
return;
if (obj->oo_on_orphan_list) {
osd_drop_preallocated_space(obj);
obj->oo_on_orphan_list = 0;
}
if (osd_has_index(obj) && obj->oo_dt.do_index_ops == &osd_index_iam_ops)
ldiskfs_set_inode_flag(inode, LDISKFS_INODE_JOURNAL_DATA);
uid = i_uid_read(inode);
gid = i_gid_read(inode);
projid = i_projid_read(inode);
obj->oo_inode = NULL;
iput(inode);
/* do not rebalance quota if the caller needs to release memory
* otherwise qsd_refresh_usage() may went into a new ldiskfs
* transaction and risk to deadlock - LU-12178 */
if (current->flags & (PF_MEMALLOC | PF_KSWAPD))
return;
if (obj->oo_destroyed) {
struct qsd_instance *qsd;
CDEBUG(D_QUOTA, " %p ino=%lu\n", inode, inode->i_ino);
qsd = osd->od_quota_slave_dt;
osd_quota_refresh(env, qsd, projid, uid, gid);
qsd = osd->od_quota_slave_md;
osd_quota_refresh(env, qsd, projid, uid, gid);
}
}
/*
* Concurrency: ->loo_object_release() is called under site spin-lock.
*/
static void osd_object_release(const struct lu_env *env,
struct lu_object *l)
{
struct osd_object *o = osd_obj(l);
/*
* nobody should be releasing a non-destroyed object with nlink=0
* the API allows this, but ldiskfs doesn't like and then report
* this inode as deleted
*/
LASSERT(!(o->oo_destroyed == 0 && o->oo_inode &&
o->oo_inode->i_nlink == 0));
}
/*
* Concurrency: shouldn't matter.
*/
static int osd_object_print(const struct lu_env *env, void *cookie,
lu_printer_t p, const struct lu_object *l)
{
struct osd_object *o = osd_obj(l);
struct iam_descr *d;
if (o->oo_dir != NULL)
d = o->oo_dir->od_container.ic_descr;
else
d = NULL;
return (*p)(env, cookie,
LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
o, o->oo_inode,
o->oo_inode ? o->oo_inode->i_ino : 0UL,
o->oo_inode ? o->oo_inode->i_generation : 0,
d ? d->id_ops->id_name : "plain");
}
/*
* Concurrency: shouldn't matter.
*/
int osd_statfs(const struct lu_env *env, struct dt_device *d,
struct obd_statfs *sfs, struct obd_statfs_info *info)
{
struct osd_device *osd = osd_dt_dev(d);
struct super_block *sb = osd_sb(osd);
struct kstatfs *ksfs;
__u64 reserved;
int result = 0;
if (unlikely(osd->od_mnt == NULL))
return -EINPROGRESS;
/* osd_lproc.c call this without env, allocate ksfs for that case */
if (unlikely(env == NULL)) {
OBD_ALLOC_PTR(ksfs);
if (ksfs == NULL)
return -ENOMEM;
} else {
ksfs = &osd_oti_get(env)->oti_ksfs;
}
result = sb->s_op->statfs(sb->s_root, ksfs);
if (result)
goto out;
statfs_pack(sfs, ksfs);
if (unlikely(sb->s_flags & SB_RDONLY))
sfs->os_state |= OS_STATFS_READONLY;
sfs->os_state |= osd->od_nonrotational ? OS_STATFS_NONROT : 0;
if (ldiskfs_has_feature_extents(sb))
sfs->os_maxbytes = sb->s_maxbytes;
else
sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
/*
* Reserve some space so to avoid fragmenting the filesystem too much.
* Fragmentation not only impacts performance, but can also increase
* metadata overhead significantly, causing grant calculation to be
* wrong.
*
* Reserve 0.78% of total space, at least 8MB for small filesystems.
*/
BUILD_BUG_ON(OSD_STATFS_RESERVED <= LDISKFS_MAX_BLOCK_SIZE);
reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
sfs->os_blocks -= reserved;
sfs->os_bfree -= min(reserved, sfs->os_bfree);
sfs->os_bavail -= min(reserved, sfs->os_bavail);
out:
if (unlikely(env == NULL))
OBD_FREE_PTR(ksfs);
return result;
}
static void osd_init_t10_type(struct osd_device *osd)
{
struct blk_integrity *bi = bdev_get_integrity(osd_sb(osd)->s_bdev);
unsigned short interval;
const char *name;
osd->od_t10_type = 0;
if (bi) {
interval = blk_integrity_interval(bi);
name = blk_integrity_name(bi);
/*
* Expected values:
* T10-DIF-TYPE1-CRC
* T10-DIF-TYPE2-CRC
* T10-DIF-TYPE3-CRC
* T10-DIF-TYPE1-IP
* T10-DIF-TYPE2-IP
* T10-DIF-TYPE3-IP
*/
if (strncmp(name, "T10-DIF-TYPE",
sizeof("T10-DIF-TYPE") - 1) == 0) {
/* also skip "1/2/3-" at end */
const int type_off = sizeof("T10-DIF-TYPE.");
char type_number = name[type_off - 2];
if (interval != 512 && interval != 4096) {
CERROR("%s: unsupported T10PI sector size %u\n",
osd->od_svname, interval);
return;
}
switch (type_number) {
case '1':
osd->od_t10_type = OSD_T10_TYPE1;
break;
case '2':
osd->od_t10_type = OSD_T10_TYPE2;
break;
case '3':
osd->od_t10_type = OSD_T10_TYPE3;
break;
default:
CERROR("%s: unsupported T10PI type %s\n",
osd->od_svname, name);
return;
}
if (strcmp(name + type_off, "CRC") == 0) {
osd->od_t10_type |= OSD_T10_TYPE_CRC;
} else if (strcmp(name + type_off, "IP") == 0) {
osd->od_t10_type |= OSD_T10_TYPE_IP;
} else {
CERROR("%s: unsupported checksum type of T10PI type '%s'\n",
osd->od_svname, name);
osd->od_t10_type = 0;
}
} else {
CERROR("%s: unsupported T10PI type '%s'\n",
osd->od_svname, name);
}
}
}
/**
* Estimate space needed for file creations. We assume the largest filename
* which is 2^64 - 1, hence a filename of 20 chars.
* This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
*/
#ifdef __LDISKFS_DIR_REC_LEN
# define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
#else
# define PER_OBJ_USAGE ldiskfs_dir_rec_len(20, NULL)
#endif
/*
* Concurrency: doesn't access mutable data.
*/
static void osd_conf_get(const struct lu_env *env,
const struct dt_device *dev,
struct dt_device_param *param)
{
struct osd_device *d = osd_dt_dev(dev);
struct super_block *sb = osd_sb(d);
struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
int ea_overhead;
/*
* XXX should be taken from not-yet-existing fs abstraction layer.
*/
param->ddp_max_name_len = LDISKFS_NAME_LEN;
param->ddp_max_nlink = LDISKFS_LINK_MAX;
param->ddp_symlink_max = sb->s_blocksize;
param->ddp_mount_type = LDD_MT_LDISKFS;
if (ldiskfs_has_feature_extents(sb))
param->ddp_maxbytes = sb->s_maxbytes;
else
param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
/*
* inode are statically allocated, so per-inode space consumption
* is the space consumed by the directory entry
*/
param->ddp_inodespace = PER_OBJ_USAGE;
/*
* EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
* is 128MB) which is unlikely to be hit in real life. Report a smaller
* maximum length to not under-count the actual number of extents
* needed for writing a file if there are sub-optimal block allocations.
*/
param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 1;
/* worst-case extent insertion metadata overhead */
param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
param->ddp_mntopts = 0;
if (test_opt(sb, XATTR_USER))
param->ddp_mntopts |= MNTOPT_USERXATTR;
if (test_opt(sb, POSIX_ACL))
param->ddp_mntopts |= MNTOPT_ACL;
/*
* LOD might calculate the max stripe count based on max_ea_size,
* so we need take account in the overhead as well,
* xattr_header + magic + xattr_entry_head
*/
ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
#if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
if (ldiskfs_has_feature_ea_inode(sb))
param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
ea_overhead;
else
#endif
param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
if (param->ddp_max_ea_size > OBD_MAX_EA_SIZE)
param->ddp_max_ea_size = OBD_MAX_EA_SIZE;
/*
* Preferred RPC size for efficient disk IO. 4MB shows good
* all-around performance for ldiskfs, but use bigalloc chunk size
* by default if larger.
*/
#if defined(LDISKFS_CLUSTER_SIZE)
if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
else
#endif
param->ddp_brw_size = DT_DEF_BRW_SIZE;
param->ddp_t10_cksum_type = 0;
if (bi) {
unsigned short interval = blk_integrity_interval(bi);
if (d->od_t10_type & OSD_T10_TYPE_CRC)
param->ddp_t10_cksum_type = interval == 512 ?
OBD_CKSUM_T10CRC512 : OBD_CKSUM_T10CRC4K;
else if (d->od_t10_type & OSD_T10_TYPE_IP)
param->ddp_t10_cksum_type = interval == 512 ?
OBD_CKSUM_T10IP512 : OBD_CKSUM_T10IP4K;
}
param->ddp_has_lseek_data_hole = true;
}
static struct vfsmount *osd_mnt_get(const struct dt_device *d)
{
return osd_dt_dev(d)->od_mnt;
}
/*
* Concurrency: shouldn't matter.
*/
static int osd_sync(const struct lu_env *env, struct dt_device *d)
{
int rc;
struct super_block *s = osd_sb(osd_dt_dev(d));
ENTRY;
down_read(&s->s_umount);
rc = s->s_op->sync_fs(s, 1);
up_read(&s->s_umount);
CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
rc);
return rc;
}
/**
* Start commit for OSD device.
*
* An implementation of dt_commit_async method for OSD device.
* Asychronously starts underlayng fs sync and thereby a transaction
* commit.
*
* \param env environment
* \param d dt device
*
* \see dt_device_operations
*/
static int osd_commit_async(const struct lu_env *env,
struct dt_device *d)
{
struct super_block *s = osd_sb(osd_dt_dev(d));
int rc;
ENTRY;
CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
down_read(&s->s_umount);
rc = s->s_op->sync_fs(s, 0);
up_read(&s->s_umount);
RETURN(rc);
}
/*
* Concurrency: shouldn't matter.
*/
static int osd_ro(const struct lu_env *env, struct dt_device *d)
{
struct super_block *sb = osd_sb(osd_dt_dev(d));
struct block_device *dev = sb->s_bdev;
int rc = -EOPNOTSUPP;
ENTRY;
CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
osd_dt_dev(d)->od_svname, (long)dev, rc);
RETURN(rc);
}
/**
* Note: we do not count into QUOTA here.
* If we mount with --data_journal we may need more.
*/
const int osd_dto_credits_noquota[DTO_NR] = {
/**
* Insert.
* INDEX_EXTRA_TRANS_BLOCKS(8) +
* SINGLEDATA_TRANS_BLOCKS(8)
* XXX Note: maybe iam need more, since iam have more level than
* EXT3 htree.
*/
[DTO_INDEX_INSERT] = 16,
/**
* Delete
* just modify a single entry, probably merge few within a block
*/
[DTO_INDEX_DELETE] = 1,
/**
* Used for OI scrub
*/
[DTO_INDEX_UPDATE] = 16,
/**
* 4(inode, inode bits, groups, GDT)
* notice: OI updates are counted separately with DTO_INDEX_INSERT
*/
[DTO_OBJECT_CREATE] = 4,
/**
* 4(inode, inode bits, groups, GDT)
* notice: OI updates are counted separately with DTO_INDEX_DELETE
*/
[DTO_OBJECT_DELETE] = 4,
/**
* Attr set credits (inode)
*/
[DTO_ATTR_SET_BASE] = 1,
/**
* Xattr set. The same as xattr of EXT3.
* DATA_TRANS_BLOCKS(14)
* XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
* are also counted in. Do not know why?
*/
[DTO_XATTR_SET] = 14,
/**
* credits for inode change during write.
*/
[DTO_WRITE_BASE] = 3,
/**
* credits for single block write.
*/
[DTO_WRITE_BLOCK] = 14,
/**
* Attr set credits for chown.
* This is extra credits for setattr, and it is null without quota
*/
[DTO_ATTR_SET_CHOWN] = 0
};
/* reserve or free quota for some operation */
static int osd_reserve_or_free_quota(const struct lu_env *env,
struct dt_device *dev,
struct lquota_id_info *qi)
{
struct osd_device *osd = osd_dt_dev(dev);
struct qsd_instance *qsd = NULL;
int rc;
ENTRY;
if (qi->lqi_is_blk)
qsd = osd->od_quota_slave_dt;
else
qsd = osd->od_quota_slave_md;
rc = qsd_reserve_or_free_quota(env, qsd, qi);
RETURN(rc);
}
static const struct dt_device_operations osd_dt_ops = {
.dt_root_get = osd_root_get,
.dt_statfs = osd_statfs,
.dt_trans_create = osd_trans_create,
.dt_trans_start = osd_trans_start,
.dt_trans_stop = osd_trans_stop,
.dt_trans_cb_add = osd_trans_cb_add,
.dt_conf_get = osd_conf_get,
.dt_mnt_get = osd_mnt_get,
.dt_sync = osd_sync,
.dt_ro = osd_ro,
.dt_commit_async = osd_commit_async,
.dt_reserve_or_free_quota = osd_reserve_or_free_quota,
.dt_last_seq_get = osd_last_seq_get,
};
static void osd_inode_getattr(const struct lu_env *env,
struct inode *inode, struct lu_attr *attr)
{
attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
LA_BLKSIZE | LA_TYPE | LA_BTIME;
attr->la_atime = inode_get_atime_sec(inode);
attr->la_mtime = inode_get_mtime_sec(inode);
attr->la_ctime = inode_get_ctime_sec(inode);
attr->la_btime = LDISKFS_I(inode)->i_crtime.tv_sec;
attr->la_mode = inode->i_mode;
attr->la_size = i_size_read(inode);
attr->la_blocks = inode->i_blocks;
attr->la_uid = i_uid_read(inode);
attr->la_gid = i_gid_read(inode);
attr->la_projid = i_projid_read(inode);
attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
attr->la_nlink = inode->i_nlink;
attr->la_rdev = inode->i_rdev;
attr->la_blksize = 1 << inode->i_blkbits;
attr->la_blkbits = inode->i_blkbits;
/*
* Ext4 did not transfer inherit flags from raw inode
* to inode flags, and ext4 internally test raw inode
* @i_flags directly. Instead of patching ext4, we do it here.
*/
attr->la_flags |= LDISKFS_I(inode)->i_flags & LUSTRE_FL_USER_VISIBLE;
}
static int osd_dirent_count(const struct lu_env *env, struct dt_object *dt,
u64 *count)
{
struct osd_object *obj = osd_dt_obj(dt);
const struct dt_it_ops *iops;
struct dt_it *it;
int rc;
ENTRY;
LASSERT(S_ISDIR(obj->oo_inode->i_mode));
LASSERT(fid_is_namespace_visible(lu_object_fid(&obj->oo_dt.do_lu)));
/* directory not initialized yet */
if (!dt->do_index_ops) {
*count = 0;
RETURN(0);
}
spin_lock(&obj->oo_guard);
*count = atomic_read(&obj->oo_dirent_count);
if (*count == LU_DIRENT_COUNT_UNSET)
atomic_set(&obj->oo_dirent_count, 0);
spin_unlock(&obj->oo_guard);
if (*count != LU_DIRENT_COUNT_UNSET)
RETURN(0);
*count = 0;
iops = &dt->do_index_ops->dio_it;
it = iops->init(env, dt, LUDA_64BITHASH);
if (IS_ERR(it))
GOTO(out, rc = PTR_ERR(it));
rc = iops->load(env, it, 0);
if (rc < 0) {
if (rc == -ENODATA)
rc = 0;
GOTO(put, rc);
}
if (rc > 0)
rc = iops->next(env, it);
for (; rc == 0 || rc == -ESTALE; rc = iops->next(env, it)) {
if (rc == -ESTALE)
continue;
if (iops->key_size(env, it) == 0)
continue;
(*count)++;
}
if (rc == 1 || rc == -ESTALE)
rc = 0;
put:
iops->put(env, it);
iops->fini(env, it);
out:
/* If counting dirents failed, use the current count (if any).
*
* At worst this means the directory will not be split until the
* count can be completed successfully (remount or oo_dirent_count
* incremented by adding new entries). This avoids re-walking
* the whole directory on each access and hitting the same error.
*/
if (rc && *count == 0)
*count = LU_DIRENT_COUNT_UNSET;
atomic_set(&obj->oo_dirent_count, *count);
RETURN(rc);
}
static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr)
{
struct osd_object *obj = osd_dt_obj(dt);
int rc = 0;
if (unlikely(!dt_object_exists(dt)))
return -ENOENT;
if (unlikely(obj->oo_destroyed))
return -ENOENT;
LASSERT(!dt_object_remote(dt));
LINVRNT(osd_invariant(obj));
spin_lock(&obj->oo_guard);
osd_inode_getattr(env, obj->oo_inode, attr);
if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
attr->la_valid |= LA_FLAGS;
attr->la_flags |= LUSTRE_ORPHAN_FL;
}
if (obj->oo_lma_flags & LUSTRE_ENCRYPT_FL) {
attr->la_valid |= LA_FLAGS;
attr->la_flags |= LUSTRE_ENCRYPT_FL;
}
spin_unlock(&obj->oo_guard);
if (S_ISDIR(obj->oo_inode->i_mode) &&
(attr->la_valid & LA_DIRENT_CNT) &&
fid_is_namespace_visible(lu_object_fid(&dt->do_lu)))
rc = osd_dirent_count(env, dt, &attr->la_dirent_count);
else
attr->la_valid &= ~LA_DIRENT_CNT;
return rc;
}
static int osd_declare_attr_qid(const struct lu_env *env,
struct osd_object *obj,
struct osd_thandle *oh, long long bspace,
qid_t old_id, qid_t new_id, bool enforce,
unsigned int type)
{
int rc;
struct osd_thread_info *info = osd_oti_get(env);
struct lquota_id_info *qi = &info->oti_qi;
struct thandle *th = &oh->ot_super;
qi->lqi_type = type;
/* inode accounting */
qi->lqi_is_blk = false;
qi->lqi_ignore_root_proj_quota = th->th_ignore_root_proj_quota;
/* one more inode for the new id ... */
qi->lqi_id.qid_uid = new_id;
qi->lqi_space = 1;
/* Reserve credits for the new id */
rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
if (rc == -EDQUOT || rc == -EINPROGRESS)
rc = 0;
if (rc)
RETURN(rc);
/* and one less inode for the current id */
qi->lqi_id.qid_uid = old_id;
qi->lqi_space = -1;
rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
if (rc == -EDQUOT || rc == -EINPROGRESS)
rc = 0;
if (rc)
RETURN(rc);
/* block accounting */
qi->lqi_is_blk = true;
/* more blocks for the new id ... */
qi->lqi_id.qid_uid = new_id;
qi->lqi_space = bspace;
/*
* Credits for the new uid has been reserved, re-use "obj"
* to save credit reservation.
*/
rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
if (rc == -EDQUOT || rc == -EINPROGRESS)
rc = 0;
if (rc)
RETURN(rc);
/* and finally less blocks for the current uid */
qi->lqi_id.qid_uid = old_id;
qi->lqi_space = -bspace;
rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
if (rc == -EDQUOT || rc == -EINPROGRESS)
rc = 0;
RETURN(rc);
}
static int osd_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_attr *attr,
struct thandle *handle)
{
struct osd_thandle *oh;
struct osd_object *obj;
int rc = 0;
ENTRY;
LASSERT(dt != NULL);
LASSERT(handle != NULL);
obj = osd_dt_obj(dt);
LASSERT(osd_invariant(obj));
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
osd_dto_credits_noquota[DTO_XATTR_SET]);
if (attr == NULL || obj->oo_inode == NULL)
RETURN(0);
/*
* Changing ownership is always preformed by super user, it should not
* fail with EDQUOT unless required explicitly.
*
* We still need to call the osd_declare_qid() to calculate the journal
* credits for updating quota accounting files for both block and inode
* quotas and to trigger quota space update once operation completes.
*/
if (attr->la_valid & (LA_UID | LA_GID | LA_PROJID)) {
long long bspace;
qid_t uid = U32_MAX;
qid_t gid = U32_MAX;
qid_t projid = U32_MAX;
bspace = stoqb(obj->oo_inode->i_blocks << 9);
if (attr->la_valid & LA_UID) {
uid = i_uid_read(obj->oo_inode);
rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
attr->la_uid,
attr->la_uid != uid,
USRQUOTA);
if (rc)
RETURN(rc);
}
if (attr->la_valid & LA_GID) {
gid = i_gid_read(obj->oo_inode);
rc = osd_declare_attr_qid(env, obj, oh, bspace, gid,
attr->la_gid,
attr->la_gid != gid,
GRPQUOTA);
if (rc)
RETURN(rc);
}
if (attr->la_valid & LA_PROJID) {
projid = i_projid_read(obj->oo_inode);
rc = osd_declare_attr_qid(env, obj, oh, bspace, projid,
attr->la_projid,
attr->la_projid != projid,
PRJQUOTA);
if (rc)
RETURN(rc);
}
CDEBUG(D_QUOTA,
"declare UID %u->%u GID %u->%u PROJID %u->%u bspace=%llu\n",
uid, attr->la_uid, gid, attr->la_gid,
projid, attr->la_projid, bspace);
}
/* punch must be aware we are dealing with an encrypted file */
if (attr->la_valid & LA_FLAGS && attr->la_flags & LUSTRE_ENCRYPT_FL)
obj->oo_lma_flags |= LUSTRE_ENCRYPT_FL;
RETURN(0);
}
static int osd_inode_setattr(const struct lu_env *env,
struct inode *inode, const struct lu_attr *attr)
{
__u64 bits = attr->la_valid;
/* Only allow set size for regular file */
if (!S_ISREG(inode->i_mode))
bits &= ~(LA_SIZE | LA_BLOCKS);
if (bits == 0)
return 0;
if (bits & LA_ATIME)
inode_set_atime_to_ts(inode,
osd_inode_time(inode, attr->la_atime));
if (bits & LA_CTIME)
inode_set_ctime_to_ts(inode,
osd_inode_time(inode, attr->la_ctime));
if (bits & LA_MTIME)
inode_set_mtime_to_ts(inode,
osd_inode_time(inode, attr->la_mtime));
if (bits & LA_SIZE) {
spin_lock(&inode->i_lock);
LDISKFS_I(inode)->i_disksize = attr->la_size;
i_size_write(inode, attr->la_size);
spin_unlock(&inode->i_lock);
}
/*
* OSD should not change "i_blocks" which is used by quota.
* "i_blocks" should be changed by ldiskfs only.
*/
if (bits & LA_MODE)
inode->i_mode = (inode->i_mode & S_IFMT) |
(attr->la_mode & ~S_IFMT);
if (bits & LA_UID)
i_uid_write(inode, attr->la_uid);
if (bits & LA_GID)
i_gid_write(inode, attr->la_gid);
if (bits & LA_PROJID)
i_projid_write(inode, attr->la_projid);
if (bits & LA_NLINK)
set_nlink(inode, attr->la_nlink);
if (bits & LA_RDEV)
inode->i_rdev = attr->la_rdev;
if (bits & LA_FLAGS) {
struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
/* always keep S_NOCMTIME and disable LSM security */
inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
S_NOCMTIME | S_PRIVATE;
#if defined(S_ENCRYPTED)
/* Always remove S_ENCRYPTED, because ldiskfs must not be
* aware of encryption status. It is just stored into LMA
* so that it can be forwared to client side.
*/
inode->i_flags &= ~S_ENCRYPTED;
#endif
/*
* Ext4 did not transfer inherit flags from
* @inode->i_flags to raw inode i_flags when writing
* flags, we do it explictly here.
*/
ei->i_flags = (ei->i_flags & ~LDISKFS_OSD_USER_MODIFIABLE) |
(attr->la_flags & LDISKFS_OSD_USER_MODIFIABLE);
}
return 0;
}
static int osd_transfer_project(struct inode *inode, __u32 projid,
struct thandle *handle)
{
struct super_block *sb = inode->i_sb;
struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
int err;
kprojid_t kprojid;
struct ldiskfs_iloc iloc;
struct ldiskfs_inode *raw_inode;
struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
if (!ldiskfs_has_feature_project(sb)) {
LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
== LDISKFS_DEF_PROJID);
if (projid != LDISKFS_DEF_PROJID)
return -EOPNOTSUPP;
else
return 0;
}
if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
return -EOPNOTSUPP;
kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
return 0;
dquot_initialize(inode);
err = ldiskfs_get_inode_loc(inode, &iloc);
if (err)
return err;
raw_inode = ldiskfs_raw_inode(&iloc);
if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
struct osd_thandle *oh = container_of(handle,
struct osd_thandle,
ot_super);
/**
* try to expand inode size automatically.
*/
ldiskfs_mark_inode_dirty(oh->ot_handle, inode);
if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
err = -EOVERFLOW;
brelse(iloc.bh);
return err;
}
}
brelse(iloc.bh);
transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
if (transfer_to[PRJQUOTA]) {
down_read(&LDISKFS_I(inode)->xattr_sem);
err = __dquot_transfer(inode, transfer_to);
up_read(&LDISKFS_I(inode)->xattr_sem);
dqput(transfer_to[PRJQUOTA]);
if (err)
return err;
}
return err;
}
static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr,
struct thandle *handle)
{
int rc;
if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
(attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
struct iattr iattr;
CDEBUG(D_QUOTA,
"executing dquot_transfer inode %ld uid %d -> %d gid %d -> %d\n",
inode->i_ino, i_uid_read(inode), attr->la_uid,
i_gid_read(inode), attr->la_gid);
dquot_initialize(inode);
iattr.ia_valid = 0;
if (attr->la_valid & LA_UID)
iattr.ia_valid |= ATTR_UID;
if (attr->la_valid & LA_GID)
iattr.ia_valid |= ATTR_GID;
iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
down_read(&LDISKFS_I(inode)->xattr_sem);
rc = osd_dquot_transfer(&nop_mnt_idmap, inode, &iattr);
up_read(&LDISKFS_I(inode)->xattr_sem);
if (rc) {
CERROR("%s: quota transfer failed. Is quota enforcement enabled on the ldiskfs filesystem? rc = %d\n",
osd_ino2name(inode), rc);
return rc;
}
}
/* Handle project id transfer here properly */
if (attr->la_valid & LA_PROJID &&
attr->la_projid != i_projid_read(inode)) {
if (!projid_valid(make_kprojid(&init_user_ns, attr->la_projid)))
return -EINVAL;
rc = osd_transfer_project(inode, attr->la_projid, handle);
if (rc) {
CERROR("%s: quota transfer failed. Is project enforcement enabled on the ldiskfs filesystem? rc = %d\n",
osd_ino2name(inode), rc);
return rc;
}
}
return 0;
}
static int osd_attr_set(const struct lu_env *env,
struct dt_object *dt,
const struct lu_attr *attr,
struct thandle *handle)
{
struct osd_thread_info *info = osd_oti_get(env);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct inode *inode;
int rc;
if (!dt_object_exists(dt))
return -ENOENT;
LASSERT(handle != NULL);
LASSERT(!dt_object_remote(dt));
LASSERT(osd_invariant(obj));
osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
!osd_obj2dev(obj)->od_is_ost) {
struct osd_thread_info *oti = osd_oti_get(env);
const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
struct lu_fid *fid1 = &oti->oti_fid;
struct osd_inode_id *id = &oti->oti_id;
struct iam_path_descr *ipd;
struct iam_container *bag;
struct osd_thandle *oh;
int rc;
fid_cpu_to_be(fid1, fid0);
memset(id, 1, sizeof(*id));
bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
fid0)->oi_dir.od_container;
ipd = osd_idx_ipd_get(env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
oh = container_of(handle, struct osd_thandle, ot_super);
rc = iam_update(oh->ot_handle, bag,
(const struct iam_key *)fid1,
(const struct iam_rec *)id, ipd);
osd_ipd_put(env, bag, ipd);
return(rc > 0 ? 0 : rc);
}
inode = obj->oo_inode;
rc = osd_quota_transfer(inode, attr, handle);
if (rc)
return rc;
spin_lock(&obj->oo_guard);
rc = osd_inode_setattr(env, inode, attr);
spin_unlock(&obj->oo_guard);
if (rc != 0)
GOTO(out, rc);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
if (!(attr->la_valid & LA_FLAGS))
GOTO(out, rc);
/* If setting LUSTRE_ENCRYPT_FL on an OST object, also set a dummy
* enc ctx xattr, with 2 benefits:
* - setting the LL_XATTR_NAME_ENCRYPTION_CONTEXT xattr internally sets
* the LDISKFS_ENCRYPT_FL flag on the on-disk inode;
* - it makes e2fsprogs happy to see an enc ctx for an inode that has
* the LDISKFS_ENCRYPT_FL flag
* We do not need the actual encryption context on OST objects, it is
* only stored on MDT inodes, at file creation time.
*/
if (!(LDISKFS_I(obj->oo_inode)->i_flags & LDISKFS_ENCRYPT_FL) &&
attr->la_flags & LUSTRE_ENCRYPT_FL && osd->od_is_ost &&
!CFS_FAIL_CHECK(OBD_FAIL_LFSCK_NO_ENCFLAG)) {
struct lu_buf buf;
/* use a dummy enc ctx, fine with e2fsprogs */
buf.lb_buf = "\xFF";
buf.lb_len = 1;
rc = osd_xattr_set(env, dt, &buf,
LL_XATTR_NAME_ENCRYPTION_CONTEXT,
0, handle);
if (rc)
CWARN("%s: set "DFID" enc ctx failed: rc = %d\n",
osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
rc);
}
/* Let's check if there are extra flags need to be set into LMA */
if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
LASSERT(!obj->oo_pfid_in_lma);
rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
&info->oti_ost_attrs);
if (rc)
GOTO(out, rc);
if ((lma->lma_incompat & lustre_to_lma_flags(attr->la_flags)) ==
lustre_to_lma_flags(attr->la_flags))
/* if lma incompat already has the flags,
* save a useless call to xattr_set
*/
GOTO(out, rc = 0);
lma->lma_incompat |=
lustre_to_lma_flags(attr->la_flags);
lustre_lma_swab(lma);
osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
lma, sizeof(*lma), XATTR_REPLACE);
if (rc != 0)
CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
lma->lma_incompat, rc);
else
obj->oo_lma_flags =
attr->la_flags & LUSTRE_LMA_FL_MASKS;
osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
}
out:
return rc;
}
static struct dentry *osd_child_dentry_get(const struct lu_env *env,
struct osd_object *obj,
const char *name, const int namelen)
{
return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
}
static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
umode_t mode, struct dt_allocation_hint *hint,
struct thandle *th, struct lu_attr *attr,
struct dt_object_format *dof)
{
int result;
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oth;
struct dt_object *parent = NULL;
struct inode *inode;
struct iattr iattr = {
.ia_valid = ATTR_UID | ATTR_GID |
ATTR_CTIME | ATTR_MTIME | ATTR_ATIME,
.ia_ctime.tv_sec = attr->la_ctime,
.ia_mtime.tv_sec = attr->la_mtime,
.ia_atime.tv_sec = attr->la_atime,
.ia_uid = GLOBAL_ROOT_UID,
.ia_gid = GLOBAL_ROOT_GID,
};
const struct timespec64 omit = { .tv_nsec = UTIME_OMIT };
if (attr->la_valid & LA_UID)
iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
if (attr->la_valid & LA_GID)
iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
LINVRNT(osd_invariant(obj));
LASSERT(obj->oo_inode == NULL);
LASSERT(obj->oo_hl_head == NULL);
if (S_ISDIR(mode) && ldiskfs_pdo) {
obj->oo_hl_head =
ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
if (obj->oo_hl_head == NULL)
return -ENOMEM;
}
oth = container_of(th, struct osd_thandle, ot_super);
LASSERT(oth->ot_handle->h_transaction != NULL);
if (hint != NULL && hint->dah_parent != NULL &&
!dt_object_remote(hint->dah_parent))
parent = hint->dah_parent;
/* if a time component is not valid set it to UTIME_OMIT */
if (!(attr->la_valid & LA_CTIME))
iattr.ia_ctime = omit;
if (!(attr->la_valid & LA_MTIME))
iattr.ia_mtime = omit;
if (!(attr->la_valid & LA_ATIME))
iattr.ia_atime = omit;
inode = ldiskfs_create_inode(oth->ot_handle,
parent ? osd_dt_obj(parent)->oo_inode :
osd_sb(osd)->s_root->d_inode,
mode, &iattr);
if (!IS_ERR(inode)) {
/* Do not update file c/mtime in ldiskfs and
* disable LSM security
*/
inode->i_flags |= (S_NOCMTIME | S_PRIVATE);
/*
* For new created object, it must be consistent,
* and it is unnecessary to scrub against it.
*/
ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
obj->oo_inode = inode;
if ((dof->dof_type == DFT_DIR || dof->dof_type == DFT_INDEX) &&
ldiskfs_test_inode_flag(inode, LDISKFS_INODE_EXTENTS) &&
!ldiskfs_has_feature_64bit(inode->i_sb)) {
/* rollback to blockmap for dirs */
ldiskfs_clear_inode_flag(inode,
LDISKFS_INODE_EXTENTS);
memset(LDISKFS_I(inode)->i_data, 0,
sizeof(struct ldiskfs_extent_header));
/* will get dirtied in the next calls */
}
result = 0;
} else {
if (obj->oo_hl_head != NULL) {
ldiskfs_htree_lock_head_free(obj->oo_hl_head);
obj->oo_hl_head = NULL;
}
result = PTR_ERR(inode);
}
LINVRNT(osd_invariant(obj));
return result;
}
enum {
OSD_NAME_LEN = 255
};
static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
int result;
struct osd_thandle *oth;
__u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
LASSERT(S_ISDIR(attr->la_mode));
oth = container_of(th, struct osd_thandle, ot_super);
LASSERT(oth->ot_handle->h_transaction != NULL);
if (fid_is_namespace_visible(lu_object_fid(&obj->oo_dt.do_lu)))
atomic_set(&obj->oo_dirent_count, 0);
result = osd_mkfile(info, obj, mode, hint, th, attr, dof);
return result;
}
static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
int result;
struct osd_thandle *oth;
const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
__u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
LASSERT(S_ISREG(attr->la_mode));
oth = container_of(th, struct osd_thandle, ot_super);
LASSERT(oth->ot_handle->h_transaction != NULL);
result = osd_mkfile(info, obj, mode, hint, th, attr, dof);
if (result == 0) {
if (feat->dif_flags & DT_IND_VARKEY)
result = iam_lvar_create(obj->oo_inode,
feat->dif_keysize_max,
feat->dif_ptrsize,
feat->dif_recsize_max,
oth->ot_handle);
else
result = iam_lfix_create(obj->oo_inode,
feat->dif_keysize_max,
feat->dif_ptrsize,
feat->dif_recsize_max,
oth->ot_handle);
}
return result;
}
static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
LASSERT(S_ISREG(attr->la_mode));
return osd_mkfile(info, obj, (attr->la_mode &
(S_IFMT | S_IALLUGO | S_ISVTX)), hint, th, attr, dof);
}
static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
LASSERT(S_ISLNK(attr->la_mode));
return osd_mkfile(info, obj, (attr->la_mode &
(S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
attr, dof);
}
static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *th)
{
umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
int result;
LINVRNT(osd_invariant(obj));
LASSERT(obj->oo_inode == NULL);
LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
S_ISFIFO(mode) || S_ISSOCK(mode));
result = osd_mkfile(info, obj, mode, hint, th, attr, dof);
if (result == 0) {
LASSERT(obj->oo_inode != NULL);
/*
* This inode should be marked dirty for i_rdev. Currently
* that is done in the osd_attr_init().
*/
init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
attr->la_rdev);
}
LINVRNT(osd_invariant(obj));
return result;
}
typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
struct lu_attr *,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *);
static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
{
osd_obj_type_f result;
switch (type) {
case DFT_DIR:
result = osd_mkdir;
break;
case DFT_REGULAR:
result = osd_mkreg;
break;
case DFT_SYM:
result = osd_mksym;
break;
case DFT_NODE:
result = osd_mknod;
break;
case DFT_INDEX:
result = osd_mk_index;
break;
default:
LBUG();
break;
}
return result;
}
static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
struct dt_object *parent, struct dt_object *child,
umode_t child_mode)
{
LASSERT(ah);
ah->dah_parent = parent;
if (parent != NULL && !dt_object_remote(parent)) {
/* will help to find FID->ino at dt_insert("..") */
struct osd_object *pobj = osd_dt_obj(parent);
osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
}
}
static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr, struct dt_object_format *dof,
struct thandle *handle)
{
struct inode *inode = obj->oo_inode;
__u64 valid = attr->la_valid;
int result;
attr->la_valid &= ~(LA_TYPE | LA_MODE);
if (dof->dof_type != DFT_NODE)
attr->la_valid &= ~LA_RDEV;
if ((valid & LA_ATIME) &&
(attr->la_atime == inode_get_atime_sec(inode)))
attr->la_valid &= ~LA_ATIME;
if ((valid & LA_CTIME) &&
(attr->la_ctime == inode_get_ctime_sec(inode)))
attr->la_valid &= ~LA_CTIME;
if ((valid & LA_MTIME) &&
(attr->la_mtime == inode_get_mtime_sec(inode)))
attr->la_valid &= ~LA_MTIME;
result = osd_quota_transfer(inode, attr, handle);
if (result)
return;
if (attr->la_valid != 0) {
result = osd_inode_setattr(info->oti_env, inode, attr);
/*
* The osd_inode_setattr() should always succeed here. The
* only error that could be returned is EDQUOT when we are
* trying to change the UID or GID of the inode. However, this
* should not happen since quota enforcement is no longer
* enabled on ldiskfs (lquota takes care of it).
*/
LASSERTF(result == 0, "%d\n", result);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
}
attr->la_valid = valid;
}
/**
* Helper function for osd_create()
*
* \retval 0, on success
*/
static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
struct lu_attr *attr, struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *th)
{
int result;
__u32 umask;
osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
/* we drop umask so that permissions we pass are not affected */
umask = current->fs->umask;
current->fs->umask = 0;
result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
th);
if (likely(obj->oo_inode != NULL)) {
LASSERT(inode_state_read_once(obj->oo_inode) & I_NEW);
/*
* Unlock the inode before attr initialization to avoid
* unnecessary dqget operations. LU-6378
*/
unlock_new_inode(obj->oo_inode);
}
if (likely(result == 0)) {
osd_attr_init(info, obj, attr, dof, th);
osd_object_init0(obj);
}
/* restore previous umask value */
current->fs->umask = umask;
osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
return result;
}
/**
* Helper function for osd_create()
*
* \retval 0, on success
*/
static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
const struct lu_fid *fid, struct thandle *th)
{
struct osd_thread_info *info = osd_oti_get(env);
struct osd_inode_id *id = &info->oti_id;
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
int rc;
LASSERT(obj->oo_inode != NULL);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_OI_ENOSPC))
return -ENOSPC;
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle);
osd_trans_exec_op(env, th, OSD_OT_INSERT);
osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_FID_REUSE) && osd->od_is_ost &&
fid->f_oid) {
struct lu_fid tfid = *fid;
tfid.f_oid--;
osd_oi_insert(info, osd, &tfid, id, oh->ot_handle,
OI_CHECK_FLD, NULL);
/* clear NOSCRUB flag so that it can be scrubbed immediately */
ldiskfs_clear_inode_state(obj->oo_inode,
LDISKFS_STATE_LUSTRE_NOSCRUB);
rc = 0;
} else {
rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
OI_CHECK_FLD, NULL);
}
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP) && osd->od_is_ost) {
struct lu_fid next_fid = *fid;
/* insert next object in advance, and map to the same inode */
next_fid.f_oid++;
if (next_fid.f_oid != 0) {
osd_trans_exec_op(env, th, OSD_OT_INSERT);
osd_oi_insert(info, osd, &next_fid, id, oh->ot_handle,
OI_CHECK_FLD, NULL);
osd_trans_exec_check(env, th, OSD_OT_INSERT);
}
}
osd_trans_exec_check(env, th, OSD_OT_INSERT);
return rc;
}
int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
u64 seq, struct lu_seq_range *range)
{
struct seq_server_site *ss = osd_seq_site(osd);
/* Initialize range flags to avoid any garbage */
range->lsr_flags = 0;
if (fid_seq_is_idif(seq)) {
fld_range_set_ost(range);
range->lsr_index = idif_ost_idx(seq);
return 0;
}
if (!fid_seq_in_fldb(seq)) {
fld_range_set_mdt(range);
if (ss != NULL)
/*
* FIXME: If ss is NULL, it suppose not get lsr_index
* at all
*/
range->lsr_index = ss->ss_node_id;
return 0;
}
LASSERT(ss != NULL);
fld_range_set_any(range);
/* OSD will only do local fld lookup */
return fld_local_lookup(env, ss->ss_server_fld, seq, range);
}
static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr,
struct dt_allocation_hint *hint,
struct dt_object_format *dof,
struct thandle *handle)
{
struct osd_thandle *oh;
struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
int credits;
int rc;
ENTRY;
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
if (osd_tx_was_declared(env, oh, dt, DTO_OBJECT_CREATE, 0))
RETURN(0);
/*
* EA object consumes more credits than regular object: osd_mk_index
* vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
* leaf_node, could involves the block, block bitmap, groups, GDT
* change for each block, so add 4 * 2 credits in that case.
*
* The default ACL initialization may consume an additional 16 blocks
*/
credits = osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
((dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
/**
* While ldiskfs_new_inode() calls ldiskfs_init_acl() we have to add
* credits for possible default ACL creation in new inode
*/
if (hint && hint->dah_acl_len)
credits += osd_calc_bkmap_credits(sb, NULL, 0, -1,
(hint->dah_acl_len + sb->s_blocksize - 1) >>
sb->s_blocksize_bits);
osd_trans_declare_op(env, oh, OSD_OT_CREATE, credits);
/*
* Reuse idle OI block may cause additional one OI block
* to be changed.
*/
osd_trans_declare_op(env, oh, OSD_OT_INSERT,
osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP))
osd_trans_declare_op(env, oh, OSD_OT_INSERT,
osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
/* will help to find FID->ino mapping at dt_insert() */
rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
osd_dt_obj(dt));
if (rc != 0)
RETURN(rc);
if (!attr)
RETURN(0);
rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
attr->la_projid, 1, oh, osd_dt_obj(dt),
NULL, OSD_QID_INODE);
if (rc != 0)
RETURN(rc);
RETURN(rc);
}
/**
* Called to destroy on-disk representation of the object
*
* Concurrency: must be locked
*/
static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_thandle *oh;
int rc;
ENTRY;
if (inode == NULL)
RETURN(-ENOENT);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
/* For removing agent entry */
if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
/*
* Recycle idle OI leaf may cause additional three OI blocks
* to be changed.
*/
if (!CFS_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
osd_trans_declare_op(env, oh, OSD_OT_DELETE,
osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
/* one less inode */
rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
i_projid_read(inode), -1, oh, obj, NULL,
OSD_QID_INODE);
if (rc)
RETURN(rc);
/* data to be truncated */
rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
i_projid_read(inode), 0, oh, obj, NULL,
OSD_QID_BLK);
if (rc)
RETURN(rc);
/*
* will help to find FID->ino when this object is being
* added to PENDING
*/
rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
RETURN(rc);
}
static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
int result;
ENTRY;
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle);
LASSERT(inode);
LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
if (unlikely(fid_is_acct(fid)))
RETURN(-EPERM);
if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
if (result != 0)
CERROR("%s: remove agent entry "DFID": rc = %d\n",
osd_name(osd), PFID(fid), result);
}
if (S_ISDIR(inode->i_mode)) {
if (inode->i_nlink > 2)
CERROR("%s: directory "DFID" ino %lu link count is %u at unlink. run e2fsck to repair\n",
osd_name(osd), PFID(fid), inode->i_ino,
inode->i_nlink);
spin_lock(&obj->oo_guard);
clear_nlink(inode);
spin_unlock(&obj->oo_guard);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
} else if (obj->oo_on_orphan_list) {
inode_lock(inode);
ldiskfs_orphan_del(oh->ot_handle, inode);
inode_unlock(inode);
obj->oo_on_orphan_list = 0;
}
osd_trans_exec_op(env, th, OSD_OT_DESTROY);
ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
if (!CFS_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
result = osd_oi_delete(osd_oti_get(env), osd, fid,
oh->ot_handle, OI_CHECK_FLD);
osd_trans_exec_check(env, th, OSD_OT_DESTROY);
/* XXX: add to ext3 orphan list */
/* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
/* not needed in the cache anymore */
set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
obj->oo_destroyed = 1;
RETURN(0);
}
/**
* Put the fid into lustre_mdt_attrs, and then place the structure
* inode's ea. This fid should not be altered during the life time
* of the inode.
*
* \retval +ve, on success
* \retval -ve, on error
*
* FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
*/
int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
const struct lu_fid *fid, __u32 compat, __u32 incompat)
{
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &loa->loa_lma;
int rc;
ENTRY;
if (CFS_FAIL_CHECK(OBD_FAIL_FID_INLMA))
RETURN(0);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
rc = -ENOMEM;
lustre_loa_init(loa, fid, compat, incompat);
lustre_loa_swab(loa, false);
/*
* For the OST device with 256 bytes inode size by default,
* the PFID EA will be stored together with LMA EA to avoid
* performance trouble. Otherwise the PFID EA can be stored
* independently. LU-8998
*/
if ((compat & LMAC_FID_ON_OST) &&
LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
sizeof(*loa), XATTR_CREATE);
else
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
sizeof(*lma), XATTR_CREATE);
/*
* LMA may already exist, but we need to check that all the
* desired compat/incompat flags have been added.
*/
if (unlikely(rc == -EEXIST)) {
rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
if (rc < 0)
RETURN(rc);
if (rc < sizeof(*lma))
RETURN(-EINVAL);
lustre_loa_swab(loa, true);
if (lu_fid_eq(fid, &lma->lma_self_fid) &&
((compat == 0 && incompat == 0) ||
(!(~lma->lma_compat & compat) &&
!(~lma->lma_incompat & incompat))))
RETURN(0);
lma->lma_self_fid = *fid;
lma->lma_compat |= compat;
lma->lma_incompat |= incompat;
if (rc == sizeof(*lma)) {
lustre_lma_swab(lma);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
sizeof(*lma), XATTR_REPLACE);
} else {
lustre_loa_swab(loa, false);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
sizeof(*loa), XATTR_REPLACE);
}
}
RETURN(rc);
}
/**
* ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
* lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
* To have compatilibility with 1.8 ldiskfs driver we need to have
* magic number at start of fid data.
* \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
* its inmemory API.
*/
static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
const struct lu_fid *fid)
{
ENTRY;
if (!fid_is_namespace_visible(fid) ||
CFS_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
param->edp_magic = 0;
RETURN_EXIT;
}
param->edp_magic = LDISKFS_LUFID_MAGIC;
param->edp_len = sizeof(struct lu_fid) + 1;
fid_cpu_to_be((struct lu_fid *)param->edp_data, fid);
if (CFS_FAIL_CHECK(OBD_FAIL_FID_MULTI)) {
CDEBUG(D_INFO, "Place multiple FIDs in dentry param\n");
/* place multiple FIDs in dentry param to test the robustness
* of ldiskfs and utilities
*/
fid_cpu_to_be((struct lu_fid *)(param->edp_data +
sizeof(struct lu_fid)), (struct lu_fid *)fid);
fid_cpu_to_be((struct lu_fid *)(param->edp_data +
2 * sizeof(struct lu_fid)),
(struct lu_fid *)fid);
param->edp_len += 2 * sizeof(struct lu_fid);
}
RETURN_EXIT;
}
/**
* Try to read the fid from inode ea into dt_rec.
*
* \param fid object fid.
*
* \retval 0 on success
*/
static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
__u32 ino, struct lu_fid *fid,
struct osd_inode_id *id)
{
struct osd_thread_info *info = osd_oti_get(env);
struct inode *inode;
struct lu_fid *parent_fid = &obj->oo_dt.do_lu.lo_header->loh_fid;
int flags = lu_fid_eq(parent_fid, &LU_BACKEND_LPF_FID) ?
LDISKFS_IGET_NO_CHECKS : 0;
ENTRY;
osd_id_gen(id, ino, OSD_OII_NOGEN);
inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid, flags);
if (IS_ERR(inode))
RETURN(PTR_ERR(inode));
iput(inode);
RETURN(0);
}
static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
struct inode *dir,
struct inode *parent_dir,
const struct lu_fid *dot_fid,
const struct lu_fid *dot_dot_fid,
struct osd_thandle *oth)
{
struct ldiskfs_dentry_param *dot_ldp;
struct ldiskfs_dentry_param *dot_dot_ldp;
__u32 saved_nlink = dir->i_nlink;
int rc;
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DOTDOT_ENOSPC))
return -ENOSPC;
dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
dot_ldp->edp_magic = 0;
rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
dir, dot_ldp, dot_dot_ldp);
/*
* The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
* the subseqent ref_add() will increase the dir->i_nlink
* as 3. That is incorrect for new created directory.
*
* It looks like hack, because we want to make the OSD API
* to be order-independent for new created directory object
* between dt_insert(..) and ref_add() operations.
*
* Here, we only restore the in-RAM dir-inode's nlink attr,
* becuase if the nlink attr is not 2, then there will be
* ref_add() called following the dt_insert(..), such call
* will make both the in-RAM and on-disk dir-inode's nlink
* attr to be set as 2. LU-7447
*/
set_nlink(dir, saved_nlink);
return rc;
}
/**
* Create an local agent inode for remote entry
*/
static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
struct osd_device *osd,
struct osd_object *pobj,
const struct lu_fid *fid,
__u32 type,
struct thandle *th)
{
struct osd_thread_info *info = osd_oti_get(env);
struct inode *local;
struct osd_thandle *oh;
struct iattr iattr = {
.ia_valid = ATTR_UID | ATTR_GID |
ATTR_CTIME | ATTR_MTIME | ATTR_ATIME,
.ia_ctime.tv_nsec = UTIME_OMIT,
.ia_mtime.tv_nsec = UTIME_OMIT,
.ia_atime.tv_nsec = UTIME_OMIT,
.ia_uid = GLOBAL_ROOT_UID,
.ia_gid = GLOBAL_ROOT_GID,
};
int rc;
ENTRY;
LASSERT(th);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle->h_transaction != NULL);
local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode,
type, &iattr);
if (IS_ERR(local)) {
CERROR("%s: create local error %d\n", osd_name(osd),
(int)PTR_ERR(local));
RETURN(local);
}
/*
* restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
* correct gid on remote file, not agent here
*/
local->i_gid = current_fsgid();
ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
/* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
* That gives e2fsck something to look at and be happy, and allows
* debugging if we need to determine where this symlink came from.
*/
if (S_ISLNK(type)) {
BUILD_BUG_ON(LDISKFS_N_BLOCKS * 4 < FID_LEN + 1);
ldiskfs_clear_inode_flag(local, LDISKFS_INODE_EXTENTS);
rc = scnprintf((char *)LDISKFS_I(local)->i_data,
LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
i_size_write(local, rc);
LDISKFS_I(local)->i_disksize = rc;
}
unlock_new_inode(local);
/* Agent inode should not have project ID */
if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
i_projid_read(pobj->oo_inode) != 0) {
rc = osd_transfer_project(local, 0, th);
if (rc) {
CERROR("%s: quota transfer failed:. Is project quota enforcement enabled on the ldiskfs filesystem? rc = %d\n",
osd_ino2name(local), rc);
RETURN(ERR_PTR(rc));
}
}
/* Set special LMA flag for local agent inode */
rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
if (rc != 0) {
CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
osd_name(osd), PFID(fid), rc);
RETURN(ERR_PTR(rc));
}
if (!S_ISDIR(type))
RETURN(local);
rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode, fid,
lu_object_fid(&pobj->oo_dt.do_lu),
oh);
if (rc != 0) {
CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
osd_name(osd), PFID(fid), rc);
RETURN(ERR_PTR(rc));
}
RETURN(local);
}
/**
* when direntry is deleted, we have to take care of possible agent inode
* referenced by that. unfortunately we can't do this at that point:
* iget() within a running transaction leads to deadlock and we better do
* not call that every delete declaration to save performance. so we put
* a potention agent inode on a list and process that once the transaction
* is over. Notice it's not any worse in terms of real orphans as regular
* object destroy doesn't put inodes on the on-disk orphan list. this should
* be addressed separately
*/
static int osd_schedule_agent_inode_removal(const struct lu_env *env,
struct osd_thandle *oh,
__u32 ino)
{
struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
struct osd_obj_orphan *oor;
OBD_ALLOC_PTR(oor);
if (oor == NULL)
return -ENOMEM;
oor->oor_ino = ino;
oor->oor_env = (struct lu_env *)env;
spin_lock(&osd->od_osfs_lock);
list_add(&oor->oor_list, &osd->od_orphan_list);
spin_unlock(&osd->od_osfs_lock);
oh->ot_remove_agents = 1;
return 0;
}
static int osd_process_scheduled_agent_removals(const struct lu_env *env,
struct osd_device *osd)
{
struct osd_thread_info *info = osd_oti_get(env);
struct osd_obj_orphan *oor, *tmp;
struct osd_inode_id id;
LIST_HEAD(list);
struct inode *inode;
struct lu_fid fid;
handle_t *jh;
__u32 ino;
spin_lock(&osd->od_osfs_lock);
list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
if (oor->oor_env == env)
list_move(&oor->oor_list, &list);
}
spin_unlock(&osd->od_osfs_lock);
list_for_each_entry_safe(oor, tmp, &list, oor_list) {
ino = oor->oor_ino;
list_del(&oor->oor_list);
OBD_FREE_PTR(oor);
osd_id_gen(&id, ino, OSD_OII_NOGEN);
inode = osd_iget_fid(info, osd, &id, &fid, 0);
if (IS_ERR(inode))
continue;
if (!osd_remote_fid(env, osd, &fid)) {
iput(inode);
continue;
}
jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
clear_nlink(inode);
mark_inode_dirty(inode);
ldiskfs_journal_stop(jh);
iput(inode);
}
return 0;
}
/**
* OSD layer object create function for OST objects (b=11826).
*
* The FID is inserted into inode xattr here.
*
* \retval 0, on success
* \retval -ve, on error
*/
static int osd_create(const struct lu_env *env, struct dt_object *dt,
struct lu_attr *attr, struct dt_allocation_hint *hint,
struct dt_object_format *dof, struct thandle *th)
{
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thread_info *info = osd_oti_get(env);
int result, on_ost = 0;
ENTRY;
if (dt_object_exists(dt))
RETURN(-EEXIST);
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(dt_write_locked(env, dt));
LASSERT(th);
if (unlikely(fid_is_acct(fid)))
/*
* Quota files can't be created from the kernel any more,
* 'tune2fs -O quota' will take care of creating them
*/
RETURN(-EPERM);
result = __osd_create(info, obj, attr, hint, dof, th);
if (result == 0) {
if (fid_is_idif(fid) &&
!osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
struct lu_fid *tfid = &info->oti_fid;
struct ost_id *oi = &info->oti_ostid;
fid_to_ostid(fid, oi);
ostid_to_fid(tfid, oi, 0);
on_ost = 1;
result = osd_ea_fid_set(info, obj->oo_inode, tfid,
LMAC_FID_ON_OST, 0);
} else {
on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
fid, OI_CHECK_FLD);
result = osd_ea_fid_set(info, obj->oo_inode, fid,
on_ost ? LMAC_FID_ON_OST : 0,
0);
}
if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
obj->oo_dt.do_body_ops = &osd_body_ops;
}
if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY)) {
struct inode *inode = obj->oo_inode;
result = __osd_oi_insert(env, obj, fid, th);
if (result && inode) {
set_bit(LU_OBJECT_HEARD_BANSHEE,
&obj->oo_dt.do_lu.lo_header->loh_flags);
obj->oo_dt.do_lu.lo_header->loh_attr &= ~LOHA_EXISTS;
spin_lock(&obj->oo_guard);
clear_nlink(inode);
spin_unlock(&obj->oo_guard);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
ldiskfs_set_inode_state(inode,
LDISKFS_STATE_LUSTRE_DESTROY);
iput(inode);
obj->oo_inode = NULL;
}
}
/*
* a small optimization - dt_insert() isn't usually applied
* to OST objects, so we don't need to cache OI mapping for
* OST objects
*/
if (result == 0 && on_ost == 0) {
struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
result = osd_idc_find_and_init(env, osd, obj);
LASSERT(result == 0);
}
LASSERT(ergo(result == 0,
dt_object_exists(dt) && !dt_object_remote(dt)));
LINVRNT(osd_invariant(obj));
RETURN(result);
}
static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
struct thandle *handle)
{
struct osd_thandle *oh;
int rc;
/* it's possible that object doesn't exist yet */
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
rc = osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev),
osd_dt_obj(dt));
return rc;
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_thandle *oh;
int rc = 0;
if (!dt_object_exists(dt) || obj->oo_destroyed)
return -ENOENT;
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(dt_write_locked(env, dt));
LASSERT(th);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
CDEBUG(D_INODE, DFID" increase nlink %d\n",
PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
/*
* The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
* (65000) subdirectories by storing "1" in i_nlink if the link count
* would otherwise overflow. Directory tranversal tools understand
* that (st_nlink == 1) indicates that the filesystem dose not track
* hard links count on the directory, and will not abort subdirectory
* scanning early once (st_nlink - 2) subdirs have been found.
*
* This also has to properly handle the case of inodes with nlink == 0
* in case they are being linked into the PENDING directory
*/
spin_lock(&obj->oo_guard);
if (unlikely(inode->i_nlink == 0))
/* inc_nlink from 0 may cause WARN_ON */
set_nlink(inode, 1);
else {
osd_ldiskfs_inc_count(oh->ot_handle, inode);
if (!S_ISDIR(inode->i_mode))
LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
}
spin_unlock(&obj->oo_guard);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
LINVRNT(osd_invariant(obj));
osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
return rc;
}
static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
struct thandle *handle)
{
struct osd_thandle *oh;
if (!dt_object_exists(dt))
return -ENOENT;
LASSERT(!dt_object_remote(dt));
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
return 0;
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
struct osd_thandle *oh;
if (!dt_object_exists(dt))
return -ENOENT;
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(dt_write_locked(env, dt));
LASSERT(th);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_REF_DEL))
return -EIO;
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
spin_lock(&obj->oo_guard);
/*
* That can be result of upgrade from old Lustre version and
* applied only to local files. Just skip this ref_del call.
* ext4_unlink() only treats this as a warning, don't LASSERT here.
*/
if (inode->i_nlink == 0) {
CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
", maybe an upgraded file? (LU-3915)\n",
osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
spin_unlock(&obj->oo_guard);
return 0;
}
CDEBUG(D_INODE, DFID" decrease nlink %d\n",
PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
osd_ldiskfs_dec_count(oh->ot_handle, inode);
spin_unlock(&obj->oo_guard);
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
LINVRNT(osd_invariant(obj));
osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
return 0;
}
/*
* Concurrency: @dt is read locked.
*/
static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
struct lu_buf *buf, const char *name)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_thread_info *info = osd_oti_get(env);
struct dentry *dentry = &info->oti_obj_dentry;
bool cache_xattr = false;
int rc;
LASSERT(buf);
/* version get is not real XATTR but uses xattr API */
if (strcmp(name, XATTR_NAME_VERSION) == 0) {
dt_obj_version_t *ver = buf->lb_buf;
/*
* for version we are just using xattr API but change inode
* field instead
*/
if (buf->lb_len == 0)
return sizeof(dt_obj_version_t);
if (buf->lb_len < sizeof(dt_obj_version_t))
return -ERANGE;
CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
LDISKFS_I(inode)->i_fs_version, inode->i_ino);
*ver = LDISKFS_I(inode)->i_fs_version;
return sizeof(dt_obj_version_t);
}
if (!dt_object_exists(dt))
return -ENOENT;
LASSERT(!dt_object_remote(dt));
LASSERT(inode->i_op != NULL);
if (strcmp(name, XATTR_NAME_LOV) == 0 ||
strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
cache_xattr = true;
if (cache_xattr) {
rc = osd_oxc_get(obj, name, buf);
if (rc != -ENOENT)
return rc;
}
if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &loa->loa_lma;
struct filter_fid *ff;
struct ost_layout *ol;
rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
if (rc)
return rc;
LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
rc = sizeof(*ff);
if (buf->lb_len == 0 || !buf->lb_buf)
return rc;
if (buf->lb_len < rc)
return -ERANGE;
ff = buf->lb_buf;
ol = &ff->ff_layout;
ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
PFID_STRIPE_IDX_BITS);
ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
if (lma->lma_compat & LMAC_COMP_INFO) {
ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
} else {
ol->ol_comp_start = 0;
ol->ol_comp_end = 0;
ol->ol_comp_id = 0;
}
} else {
/* Get enc context xattr directly from ldiskfs instead of going
* through the VFS, as there is no xattr handler for
* "encryption.".
*/
if (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0)
rc = ldiskfs_xattr_get(inode,
LDISKFS_XATTR_INDEX_ENCRYPTION,
LDISKFS_XATTR_NAME_ENCRYPTION_CONTEXT,
buf->lb_buf, buf->lb_len);
else
rc = __osd_xattr_get(inode, dentry, name,
buf->lb_buf, buf->lb_len);
}
if (cache_xattr) {
if (rc == -ENOENT || rc == -ENODATA)
osd_oxc_add(obj, name, NULL, 0);
else if (rc > 0 && buf->lb_buf != NULL)
osd_oxc_add(obj, name, buf->lb_buf, rc);
}
return rc;
}
static int osd_declare_xattr_set(const struct lu_env *env,
struct dt_object *dt,
const struct lu_attr *attr,
const struct lu_buf *buf, const char *name,
int fl, struct thandle *handle)
{
struct osd_thandle *oh;
int credits = 0;
struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
if (strcmp(name, XATTR_NAME_LMA) == 0) {
/*
* For non-upgrading case, the LMA is set first and
* usually fit inode. But for upgrade case, the LMA
* may be in another separated EA block.
*/
if (dt_object_exists(dt)) {
if (fl == LU_XATTR_REPLACE)
credits = 1;
else
goto upgrade;
}
} else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
credits = 1;
} else if (strcmp(name, XATTR_NAME_FID) == 0) {
/* We may need to delete the old PFID EA. */
credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
if (fl == LU_XATTR_REPLACE)
credits += 1;
else
goto upgrade;
} else {
/*
* If some name entry resides on remote MDT, then will create
* agent entry under remote parent. On the other hand, if the
* remote entry will be removed, then related agent entry may
* need to be removed from the remote parent. So there may be
* kinds of cases, let's declare enough credits. The credits
* for create agent entry is enough for remove case.
*/
if (strcmp(name, XATTR_NAME_LINK) == 0) {
credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
if (dt_object_exists(dt))
credits += 1; /* For updating LMA */
}
upgrade:
credits += osd_dto_credits_noquota[DTO_XATTR_SET];
if (buf != NULL) {
ssize_t buflen;
if (buf->lb_buf == NULL && dt_object_exists(dt)) {
/*
* learn xattr size from osd_xattr_get if
* attribute has not been read yet
*/
buflen = __osd_xattr_get(
osd_dt_obj(dt)->oo_inode,
&osd_oti_get(env)->oti_obj_dentry,
name, NULL, 0);
if (buflen < 0)
buflen = 0;
} else {
buflen = buf->lb_len;
}
if (buflen > sb->s_blocksize) {
credits += osd_calc_bkmap_credits(
sb, NULL, 0, -1,
(buflen + sb->s_blocksize - 1) >>
sb->s_blocksize_bits);
}
}
/*
* xattr set may involve inode quota change, reserve credits for
* dquot_initialize()
*/
if (oh->ot_quota_credits_accounted == 0) {
oh->ot_quota_credits_accounted = 1;
credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
}
}
osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
return 0;
}
static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
const struct lu_buf *buf, int fl,
struct thandle *handle)
{
struct osd_thread_info *info = osd_oti_get(env);
struct dentry *dentry = &info->oti_obj_dentry;
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &loa->loa_lma;
struct inode *inode = obj->oo_inode;
struct filter_fid *ff = buf->lb_buf;
struct ost_layout *ol = &ff->ff_layout;
int flags = XATTR_REPLACE;
int rc;
ENTRY;
if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
RETURN(-EINVAL);
rc = osd_get_lma(info, inode, dentry, loa);
if (rc == -ENODATA) {
/* Usually for upgarding from old device */
lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
LMAC_FID_ON_OST, 0);
flags = XATTR_CREATE;
} else if (rc) {
RETURN(rc);
}
if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
RETURN(-EEXIST);
if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
/* Separate PFID EA from LMA */
lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
lustre_lma_swab(lma);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
sizeof(*lma), XATTR_REPLACE);
if (!rc) {
obj->oo_pfid_in_lma = 0;
rc = LU_XATTR_CREATE;
}
RETURN(rc);
}
} else {
if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
RETURN(fl);
/*
* Old client does not send stripe information,
* then store the PFID EA on disk separatedly.
*/
if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
ol->ol_stripe_size == 0))
RETURN(fl);
/* Remove old PFID EA entry firstly. */
dquot_initialize(inode);
rc = ll_vfs_removexattr(dentry, inode, XATTR_NAME_FID);
if (rc == -ENODATA) {
/* XATTR_NAME_FID is already absent */
rc = 0;
} else if (rc) {
RETURN(rc);
}
}
fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
if (likely(ol->ol_stripe_size != 0)) {
loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
PFID_STRIPE_IDX_BITS;
loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
lma->lma_compat |= LMAC_STRIPE_INFO;
if (ol->ol_comp_id != 0) {
loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
lma->lma_compat |= LMAC_COMP_INFO;
}
}
lustre_loa_swab(loa, false);
/* Store the PFID EA inside LMA. */
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
flags);
if (!rc)
obj->oo_pfid_in_lma = 1;
RETURN(rc);
}
/*
* In DNE environment, the object (in spite of regular file or directory)
* and its name entry may reside on different MDTs. Under such case, we will
* create an agent entry on the MDT where the object resides. The agent entry
* references the object locally, that makes the object to be visible to the
* userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
* such as 'tar' can handle the object properly.
*
* We handle the agent entry during set linkEA that is the common interface
* for both regular file and directroy, can handle kinds of cases, such as
* create/link/unlink/rename, and so on.
*
* NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
*
* XXX: There are two known issues:
* 1. For one object, we will create at most one agent entry even if there
* may be more than one cross-MDTs hard links on the object. So the local
* e2fsck may claim that the object's nlink is larger than the name entries
* that reference such inode. And in further, the e2fsck will fix the nlink
* attribute to match the local references. Then it will cause the object's
* nlink attribute to be inconsistent with the global references. it is bad
* but not fatal. The ref_del() can handle the zero-referenced case. On the
* other hand, the global namespace LFSCK can repair the object's attribute
* according to the linkEA.
* 2. There may be too many hard links on the object as to its linkEA overflow,
* then the linkEA entry for cross-MDTs reference may be discarded. If such
* case happened, then at this point, we do not know whether there are some
* cross-MDTs reference. But there are local references, it guarantees that
* object is visible to userspace when mounted as 'ldiskfs'. That is enough.
*/
static int osd_xattr_handle_linkea(const struct lu_env *env,
struct osd_device *osd,
struct osd_object *obj,
const struct lu_buf *buf,
struct thandle *handle)
{
const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
struct lu_name tmpname;
struct osd_thandle *oh;
int rc;
bool remote = false;
ENTRY;
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
rc = linkea_init_with_rec(&ldata);
if (!rc) {
linkea_first_entry(&ldata);
while (ldata.ld_lee != NULL && !remote) {
linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
&tmpname, tfid);
if (osd_remote_fid(env, osd, tfid) > 0)
remote = true;
else
linkea_next_entry(&ldata);
}
} else if (rc == -ENODATA) {
rc = 0;
} else {
RETURN(rc);
}
if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
if (rc)
CERROR("%s: failed to remove agent entry for "DFID
": rc = %d\n", osd_name(osd), PFID(fid), rc);
} else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
rc = osd_add_to_remote_parent(env, osd, obj, oh);
if (rc)
CERROR("%s: failed to create agent entry for "DFID
": rc = %d\n", osd_name(osd), PFID(fid), rc);
}
RETURN(rc);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf, const char *name, int fl,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct inode *inode = obj->oo_inode;
struct osd_thread_info *info = osd_oti_get(env);
int fs_flags = 0;
int len;
int rc;
ENTRY;
LASSERT(handle);
LASSERT(buf);
/* version set is not real XATTR */
if (strcmp(name, XATTR_NAME_VERSION) == 0) {
dt_obj_version_t *version = buf->lb_buf;
/*
* for version we are just using xattr API but change inode
* field instead
*/
LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
CDEBUG(D_INODE,
DFID" set version %#llx (old %#llx) for inode %lu\n",
PFID(lu_object_fid(&dt->do_lu)), *version,
LDISKFS_I(inode)->i_fs_version, inode->i_ino);
LDISKFS_I(inode)->i_fs_version = *version;
/*
* Version is set after all inode operations are finished,
* so we should mark it dirty here
*/
osd_dirty_inode(inode, I_DIRTY_DATASYNC);
RETURN(0);
}
CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
len = buf->lb_len;
osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
/*
* For the OST device with 256 bytes inode size by default,
* the PFID EA will be stored together with LMA EA to avoid
* performance trouble. Otherwise the PFID EA can be stored
* independently. LU-8998
*/
if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
(LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
LASSERT(buf->lb_buf);
fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
if (fl <= 0)
RETURN(fl);
} else if (strcmp(name, XATTR_NAME_LMV) == 0) {
struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
struct lustre_mdt_attrs *lma = &loa->loa_lma;
rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
if (rc)
RETURN(rc);
lma->lma_incompat |= LMAI_STRIPED;
lustre_lma_swab(lma);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
sizeof(*lma), XATTR_REPLACE);
if (rc != 0)
RETURN(rc);
obj->oo_lmv_updated = 1;
} else if (strcmp(name, XATTR_NAME_LINK) == 0) {
LASSERT(!osd->od_is_ost);
rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
if (rc)
RETURN(rc);
}
if (fl & LU_XATTR_REPLACE)
fs_flags |= XATTR_REPLACE;
if (fl & LU_XATTR_CREATE)
fs_flags |= XATTR_CREATE;
if (strcmp(name, LL_XATTR_NAME_ENCRYPTION_CONTEXT) == 0) {
/* Set enc context xattr directly in ldiskfs instead of going
* through the VFS, as there is no xattr handler for
* "encryption.".
*/
struct osd_thandle *oth = container_of(handle,
struct osd_thandle,
ot_super);
if (!oth->ot_handle)
/* this should be already part of a transaction */
RETURN(-EPROTO);
rc = ldiskfs_xattr_set_handle(oth->ot_handle, inode,
LDISKFS_XATTR_INDEX_ENCRYPTION,
LDISKFS_XATTR_NAME_ENCRYPTION_CONTEXT,
buf->lb_buf, len, fs_flags);
} else {
rc = __osd_xattr_set(info, inode, name,
buf->lb_buf, len, fs_flags);
}
osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
if (rc == 0 &&
(strcmp(name, XATTR_NAME_LOV) == 0 ||
strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
return rc;
}
/*
* Concurrency: @dt is read locked.
*/
static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
const struct lu_buf *buf)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *dev = osd_obj2dev(obj);
struct inode *inode = obj->oo_inode;
struct osd_thread_info *info = osd_oti_get(env);
struct dentry *dentry = &info->oti_obj_dentry;
char *end;
char *p;
int rc;
if (!dt_object_exists(dt))
return -ENOENT;
LASSERT(!dt_object_remote(dt));
LASSERT(inode->i_op != NULL);
LASSERT(inode->i_op->listxattr != NULL);
dentry->d_inode = inode;
dentry->d_sb = inode->i_sb;
rc = inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
if (rc < 0 || buf->lb_buf == NULL)
return rc;
p = buf->lb_buf;
end = p + rc;
while (p < end) {
char *next = p + strlen(p) + 1;
/* Hide virtual project ID xattr from list if disabled */
/* Hide virtual inode flag xattr */
if (strcmp(p, XATTR_NAME_INODEFL) == 0 ||
(!dev->od_enable_projid_xattr &&
strcmp(p, XATTR_NAME_PROJID) == 0)) {
if (end - next > 0)
memmove(p, next, end - next);
rc -= next - p;
end -= next - p;
continue;
}
p = next;
}
return rc;
}
static int osd_declare_xattr_del(const struct lu_env *env,
struct dt_object *dt, const char *name,
struct thandle *handle)
{
struct osd_thandle *oh;
struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
LASSERT(!dt_object_remote(dt));
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
osd_dto_credits_noquota[DTO_XATTR_SET]);
/*
* xattr del may involve inode quota change, reserve credits for
* dquot_initialize()
*/
if (oh->ot_quota_credits_accounted == 0) {
oh->ot_quota_credits_accounted = 1;
oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
}
return 0;
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
const char *name, struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct osd_thread_info *info = osd_oti_get(env);
struct dentry *dentry = &info->oti_obj_dentry;
int rc;
if (!dt_object_exists(dt))
return -ENOENT;
LASSERT(!dt_object_remote(dt));
LASSERT(inode->i_op != NULL);
LASSERT(handle != NULL);
osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
&info->oti_ost_attrs);
if (!rc) {
LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
lustre_lma_swab(lma);
rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
sizeof(*lma), XATTR_REPLACE);
if (!rc)
obj->oo_pfid_in_lma = 0;
}
} else {
rc = __osd_xattr_del(inode, dentry, name);
}
osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
if (rc == 0 &&
(strcmp(name, XATTR_NAME_LOV) == 0 ||
strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
osd_oxc_del(obj, name);
return rc;
}
static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
__u64 start, __u64 end)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *inode = obj->oo_inode;
struct file *file;
int rc;
ENTRY;
file = osd_get_filp_for_inode(osd_oti_get(env), inode);
rc = vfs_fsync_range(file, start, end, 0);
compat_security_file_free(file);
RETURN(rc);
}
/*
* Index operations.
*/
static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
const struct dt_index_features *feat)
{
struct iam_descr *descr;
if (osd_object_is_root(o))
return feat == &dt_directory_features;
LASSERT(o->oo_dir != NULL);
descr = o->oo_dir->od_container.ic_descr;
if (feat == &dt_directory_features) {
if (descr->id_rec_size == sizeof(struct osd_fid_pack))
return 1;
else
return 0;
} else {
return feat->dif_keysize_min <= descr->id_key_size &&
descr->id_key_size <= feat->dif_keysize_max &&
feat->dif_recsize_min <= descr->id_rec_size &&
descr->id_rec_size <= feat->dif_recsize_max &&
!(feat->dif_flags & (DT_IND_VARKEY |
DT_IND_VARREC | DT_IND_NONUNQ)) &&
ergo(feat->dif_flags & DT_IND_UPDATE,
1 /* XXX check that object (and fs) is writable */);
}
}
static int osd_iam_container_init(const struct lu_env *env,
struct osd_object *obj,
struct osd_directory *dir)
{
struct iam_container *bag = &dir->od_container;
int result;
result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
if (result != 0)
return result;
result = iam_container_setup(bag);
if (result == 0)
obj->oo_dt.do_index_ops = &osd_index_iam_ops;
else
iam_container_fini(bag);
return result;
}
/*
* Concurrency: no external locking is necessary.
*/
static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
const struct dt_index_features *feat)
{
int result;
int skip_iam = 0;
struct osd_object *obj = osd_dt_obj(dt);
LINVRNT(osd_invariant(obj));
if (osd_object_is_root(obj)) {
dt->do_index_ops = &osd_index_ea_ops;
result = 0;
} else if (feat == &dt_directory_features) {
dt->do_index_ops = &osd_index_ea_ops;
if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
result = 0;
else
result = -ENOTDIR;
skip_iam = 1;
} else if (unlikely(feat == &dt_otable_features)) {
dt->do_index_ops = &osd_otable_ops;
return 0;
} else if (unlikely(feat == &dt_acct_features)) {
dt->do_index_ops = &osd_acct_index_ops;
result = 0;
skip_iam = 1;
} else if (!osd_has_index(obj)) {
struct osd_directory *dir;
struct osd_device *osd = osd_obj2dev(obj);
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
OBD_ALLOC_PTR(dir);
if (dir) {
spin_lock(&obj->oo_guard);
if (obj->oo_dir == NULL)
obj->oo_dir = dir;
else
/*
* Concurrent thread allocated container data.
*/
OBD_FREE_PTR(dir);
spin_unlock(&obj->oo_guard);
/*
* Now, that we have container data, serialize its
* initialization.
*/
down_write(&obj->oo_ext_idx_sem);
/*
* recheck under lock.
*/
if (osd_has_index(obj)) {
result = 0;
goto unlock;
}
result = osd_iam_container_init(env, obj, obj->oo_dir);
if (result || feat == &dt_lfsck_namespace_features ||
feat == &dt_lfsck_layout_orphan_features ||
feat == &dt_lfsck_layout_dangling_features)
goto unlock;
result = osd_index_register(osd, fid,
feat->dif_keysize_max,
feat->dif_recsize_max);
if (result < 0)
CWARN("%s: failed to register index "
DFID": rc = %d\n",
osd_name(osd), PFID(fid), result);
else if (result > 0)
result = 0;
else
CDEBUG(D_LFSCK, "%s: index object "DFID
" (%d/%d) registered\n",
osd_name(osd), PFID(fid),
(int)feat->dif_keysize_max,
(int)feat->dif_recsize_max);
unlock:
up_write(&obj->oo_ext_idx_sem);
} else {
result = -ENOMEM;
}
} else {
result = 0;
}
if (result == 0 && skip_iam == 0) {
if (!osd_iam_index_probe(env, obj, feat))
result = -ENOTDIR;
}
LINVRNT(osd_invariant(obj));
return result;
}
static int osd_otable_it_attr_get(const struct lu_env *env,
struct dt_object *dt,
struct lu_attr *attr)
{
attr->la_valid = 0;
return 0;
}
static bool osd_check_stale(struct dt_object *dt)
{
struct osd_object *obj = osd_dt_obj(dt);
return (obj->oo_lmv_updated == 1);
}
static bool osd_change_stale(struct dt_object *dt, bool val)
{
struct osd_object *obj = osd_dt_obj(dt);
bool stale = (obj->oo_lmv_updated == 1);
obj->oo_lmv_updated = val;
return stale;
}
static const struct dt_object_operations osd_obj_ops = {
.do_attr_get = osd_attr_get,
.do_declare_attr_set = osd_declare_attr_set,
.do_attr_set = osd_attr_set,
.do_ah_init = osd_ah_init,
.do_declare_create = osd_declare_create,
.do_create = osd_create,
.do_declare_destroy = osd_declare_destroy,
.do_destroy = osd_destroy,
.do_index_try = osd_index_try,
.do_declare_ref_add = osd_declare_ref_add,
.do_ref_add = osd_ref_add,
.do_declare_ref_del = osd_declare_ref_del,
.do_ref_del = osd_ref_del,
.do_xattr_get = osd_xattr_get,
.do_declare_xattr_set = osd_declare_xattr_set,
.do_xattr_set = osd_xattr_set,
.do_declare_xattr_del = osd_declare_xattr_del,
.do_xattr_del = osd_xattr_del,
.do_xattr_list = osd_xattr_list,
.do_object_sync = osd_object_sync,
.do_check_stale = osd_check_stale,
.do_change_stale = osd_change_stale,
};
static const struct dt_object_operations osd_obj_otable_it_ops = {
.do_attr_get = osd_otable_it_attr_get,
.do_index_try = osd_index_try,
};
static int osd_index_declare_iam_delete(const struct lu_env *env,
struct dt_object *dt,
const struct dt_key *key,
struct thandle *handle)
{
struct osd_thandle *oh;
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
/* Recycle may cause additional three blocks to be changed. */
osd_trans_declare_op(env, oh, OSD_OT_DELETE,
osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
return 0;
}
/**
* delete a (key, value) pair from index \a dt specified by \a key
*
* \param dt osd index object
* \param key key for index
* \param rec record reference
* \param handle transaction handler
*
* \retval 0 success
* \retval -ve failure
*/
static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
const struct dt_key *key,
struct thandle *handle)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct iam_path_descr *ipd;
struct iam_container *bag = &obj->oo_dir->od_container;
int rc;
ENTRY;
if (!dt_object_exists(dt))
RETURN(-ENOENT);
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(bag->ic_object == obj->oo_inode);
LASSERT(handle != NULL);
osd_trans_exec_op(env, handle, OSD_OT_DELETE);
ipd = osd_idx_ipd_get(env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
LASSERT(oh->ot_handle->h_transaction != NULL);
if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
/* swab quota uid/gid provided by caller */
oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
key = (const struct dt_key *)&oti->oti_quota_id;
}
rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
osd_ipd_put(env, bag, ipd);
LINVRNT(osd_invariant(obj));
osd_trans_exec_check(env, handle, OSD_OT_DELETE);
RETURN(rc);
}
static int osd_index_declare_ea_delete(const struct lu_env *env,
struct dt_object *dt,
const struct dt_key *key,
struct thandle *handle)
{
struct osd_thandle *oh;
struct inode *inode;
int rc, credits;
ENTRY;
LASSERT(!dt_object_remote(dt));
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
inode = osd_dt_obj(dt)->oo_inode;
if (inode == NULL)
RETURN(-ENOENT);
rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
i_projid_read(inode), 0, oh, osd_dt_obj(dt),
NULL, OSD_QID_BLK);
RETURN(rc);
}
static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
struct dt_rec *fid)
{
struct osd_fid_pack *rec;
int rc = -ENODATA;
if (de->file_type & LDISKFS_DIRENT_LUFID) {
rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
rc = osd_fid_unpack((struct lu_fid *)fid, rec);
if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
rc = -EINVAL;
}
return rc;
}
static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
const struct lu_fid *fid)
{
struct seq_server_site *ss = osd_seq_site(osd);
ENTRY;
/* FID seqs not in FLDB, must be local seq */
if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
RETURN(0);
/*
* If FLD is not being initialized yet, it only happens during the
* initialization, likely during mgs initialization, and we assume
* this is local FID.
*/
if (ss == NULL || ss->ss_server_fld == NULL)
RETURN(0);
/* Only check the local FLDB here */
if (osd_seq_exists(env, osd, fid_seq(fid)))
RETURN(0);
RETURN(1);
}
static void osd_take_care_of_agent(const struct lu_env *env,
struct osd_device *osd,
struct osd_thandle *oh,
struct ldiskfs_dir_entry_2 *de)
{
struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
struct osd_idmap_cache *idc;
int rc, schedule = 0;
LASSERT(de != NULL);
rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
if (likely(rc == 0)) {
idc = osd_idc_find_or_init(env, osd, fid);
if (IS_ERR(idc) || idc->oic_remote)
schedule = 1;
} else if (rc == -ENODATA) {
/*
* can't get FID, postpone to the end of the
* transaction when iget() is safe
*/
schedule = 1;
} else {
CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
}
if (schedule)
osd_schedule_agent_inode_removal(env, oh,
le32_to_cpu(de->inode));
}
/**
* Utility function to get real name from object name
*
* \param[in] obj pointer to the object to be handled
* \param[in] name object name
* \param[in] len object name len
* \param[out]ln pointer to the struct lu_name to hold the real name
*
* If file is not encrypted, real name is just the object name.
* If file is encrypted, object name needs to be decoded. In
* this case a new buffer is allocated, and ln->ln_name needs to be freed by
* the caller.
*
* \retval 0, on success
* \retval -ve, on error
*/
static int obj_name2lu_name(struct osd_object *obj, const char *name,
int len, struct lu_name *ln)
{
if (!(obj->oo_lma_flags & LUSTRE_ENCRYPT_FL)) {
ln->ln_name = name;
ln->ln_namelen = len;
} else {
char *buf = kmalloc(len, GFP_NOFS);
if (!buf)
return -ENOMEM;
len = critical_decode(name, len, buf);
ln->ln_name = buf;
ln->ln_namelen = len;
}
return 0;
}
/**
* Index delete function for interoperability mode (b11826).
* It will remove the directory entry added by osd_index_ea_insert().
* This entry is needed to maintain name->fid mapping.
*
* \param key, key i.e. file entry to be deleted
*
* \retval 0, on success
* \retval -ve, on error
*/
static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
const struct dt_key *key, struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct inode *dir = obj->oo_inode;
struct dentry *dentry;
struct osd_thandle *oh;
struct ldiskfs_dir_entry_2 *de = NULL;
struct buffer_head *bh;
struct htree_lock *hlock = NULL;
struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
struct lu_name ln;
int rc;
ENTRY;
if (!dt_object_exists(dt))
RETURN(-ENOENT);
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(handle != NULL);
rc = obj_name2lu_name(obj, (char *)key, strlen((char *)key), &ln);
if (rc)
RETURN(rc);
osd_trans_exec_op(env, handle, OSD_OT_DELETE);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
LASSERT(oh->ot_handle->h_transaction != NULL);
dquot_initialize(dir);
dentry = osd_child_dentry_get(env, obj, ln.ln_name, ln.ln_namelen);
if (obj->oo_hl_head != NULL) {
hlock = osd_oti_get(env)->oti_hlock;
ldiskfs_htree_lock(hlock, obj->oo_hl_head,
dir, LDISKFS_HLOCK_DEL);
} else {
down_write(&obj->oo_ext_idx_sem);
}
bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
if (!IS_ERR(bh)) {
/*
* If this is not the ".." entry, it might be a remote DNE
* entry and we need to check if the FID is for a remote
* MDT. If the FID is not in the directory entry (e.g.
* upgraded 1.8 filesystem without dirdata enabled) then
* we need to get the FID from the LMA. For a remote directory
* there HAS to be an LMA, it cannot be an IGIF inode in this
* case.
*
* Delete the entry before the agent inode in order to
* simplify error handling. At worst an error after deleting
* the entry first might leak the agent inode afterward. The
* reverse would need filesystem abort in case of error deleting
* the entry after the agent had been removed, or leave a
* dangling entry pointing at a random inode.
*/
if (strcmp((char *)key, dotdot) != 0) {
osd_take_care_of_agent(env, osd, oh, de);
rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
}
brelse(bh);
} else {
rc = PTR_ERR(bh);
}
if (!rc && fid_is_namespace_visible(lu_object_fid(&dt->do_lu)))
atomic_dec_if_positive(&obj->oo_dirent_count);
if (hlock != NULL)
ldiskfs_htree_unlock(hlock);
else
up_write(&obj->oo_ext_idx_sem);
GOTO(out, rc);
out:
LASSERT(osd_invariant(obj));
osd_trans_exec_check(env, handle, OSD_OT_DELETE);
if (ln.ln_name != (char *)key)
kfree(ln.ln_name);
RETURN(rc);
}
/**
* Lookup index for \a key and copy record to \a rec.
*
* \param dt osd index object
* \param key key for index
* \param rec record reference
*
* \retval +ve success : exact mach
* \retval 0 return record with key not greater than \a key
* \retval -ve failure
*/
static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
struct dt_rec *rec, const struct dt_key *key)
{
struct osd_object *obj = osd_dt_obj(dt);
struct iam_path_descr *ipd;
struct iam_container *bag = &obj->oo_dir->od_container;
struct osd_thread_info *oti = osd_oti_get(env);
struct iam_iterator *it = &oti->oti_idx_it;
struct iam_rec *iam_rec;
int rc;
ENTRY;
if (!dt_object_exists(dt))
RETURN(-ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(bag->ic_object == obj->oo_inode);
ipd = osd_idx_ipd_get(env, bag);
if (IS_ERR(ipd))
RETURN(-ENOMEM);
/* got ipd now we can start iterator. */
iam_it_init(it, bag, 0, ipd);
if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
/* swab quota uid/gid provided by caller */
oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
key = (const struct dt_key *)&oti->oti_quota_id;
}
rc = iam_it_get(it, (struct iam_key *)key);
if (rc >= 0) {
if (S_ISDIR(obj->oo_inode->i_mode))
iam_rec = (struct iam_rec *)oti->oti_ldp;
else
iam_rec = (struct iam_rec *)rec;
iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
if (S_ISDIR(obj->oo_inode->i_mode))
osd_fid_unpack((struct lu_fid *)rec,
(struct osd_fid_pack *)iam_rec);
else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
osd_quota_unpack(obj, rec);
}
iam_it_put(it);
iam_it_fini(it);
osd_ipd_put(env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
static int osd_index_declare_iam_insert(const struct lu_env *env,
struct dt_object *dt,
const struct dt_rec *rec,
const struct dt_key *key,
struct thandle *handle)
{
struct osd_thandle *oh;
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
osd_trans_declare_op(env, oh, OSD_OT_INSERT,
osd_dto_credits_noquota[DTO_INDEX_INSERT]);
return 0;
}
/**
* Inserts (key, value) pair in \a dt index object.
*
* \param dt osd index object
* \param key key for index
* \param rec record reference
* \param th transaction handler
*
* \retval 0 success
* \retval -ve failure
*/
static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec,
const struct dt_key *key, struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct iam_path_descr *ipd;
struct osd_thandle *oh;
struct iam_container *bag;
struct osd_thread_info *oti = osd_oti_get(env);
struct iam_rec *iam_rec;
int rc;
ENTRY;
if (!dt_object_exists(dt))
RETURN(-ENOENT);
LINVRNT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
bag = &obj->oo_dir->od_container;
LASSERT(bag->ic_object == obj->oo_inode);
LASSERT(th != NULL);
osd_trans_exec_op(env, th, OSD_OT_INSERT);
ipd = osd_idx_ipd_get(env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle != NULL);
LASSERT(oh->ot_handle->h_transaction != NULL);
if (S_ISDIR(obj->oo_inode->i_mode)) {
iam_rec = (struct iam_rec *)oti->oti_ldp;
osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
&oti->oti_fid);
} else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
/* pack quota uid/gid */
oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
key = (const struct dt_key *)&oti->oti_quota_id;
/* pack quota record */
rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
iam_rec = (struct iam_rec *)rec;
} else {
iam_rec = (struct iam_rec *)rec;
}
rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
iam_rec, ipd);
osd_ipd_put(env, bag, ipd);
LINVRNT(osd_invariant(obj));
osd_trans_exec_check(env, th, OSD_OT_INSERT);
RETURN(rc);
}
/**
* Calls ldiskfs_add_entry() to add directory entry
* into the directory. This is required for
* interoperability mode (b11826)
*
* \retval 0, on success
* \retval -ve, on error
*/
static int __osd_ea_add_rec(struct osd_thread_info *info,
struct osd_object *pobj, struct inode *cinode,
const char *name, const struct lu_fid *fid,
struct htree_lock *hlock, struct thandle *th)
{
struct ldiskfs_dentry_param *ldp;
struct dentry *child;
struct osd_thandle *oth;
struct lu_name ln;
int rc;
oth = container_of(th, struct osd_thandle, ot_super);
LASSERT(oth->ot_handle != NULL);
LASSERT(oth->ot_handle->h_transaction != NULL);
LASSERT(pobj->oo_inode);
rc = obj_name2lu_name(pobj, name, strlen(name), &ln);
if (rc)
RETURN(rc);
ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
if (unlikely(osd_object_is_root(pobj)))
ldp->edp_magic = 0;
else
osd_get_ldiskfs_dirent_param(ldp, fid);
child = osd_child_dentry_get(info->oti_env, pobj,
ln.ln_name, ln.ln_namelen);
child->d_fsdata = (void *)ldp;
dquot_initialize(pobj->oo_inode);
rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
child, cinode, hlock);
if (rc == 0 && CFS_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
struct ldiskfs_dir_entry_2 *de;
struct buffer_head *bh;
int rc1;
bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
NULL, hlock);
if (!IS_ERR(bh)) {
rc1 = osd_ldiskfs_journal_get_write_access(
oth->ot_handle, pobj->oo_inode->i_sb, bh,
LDISKFS_JTR_NONE);
if (rc1 == 0) {
if (S_ISDIR(cinode->i_mode))
de->file_type = LDISKFS_DIRENT_LUFID |
LDISKFS_FT_REG_FILE;
else
de->file_type = LDISKFS_DIRENT_LUFID |
LDISKFS_FT_DIR;
ldiskfs_handle_dirty_metadata(oth->ot_handle,
NULL, bh);
}
brelse(bh);
}
}
if (ln.ln_name != name)
kfree(ln.ln_name);
RETURN(rc);
}
/**
* Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
* into the directory.Also sets flags into osd object to
* indicate dot and dotdot are created. This is required for
* interoperability mode (b11826)
*
* \param dir directory for dot and dotdot fixup.
* \param obj child object for linking
*
* \retval 0, on success
* \retval -ve, on error
*/
static int osd_add_dot_dotdot(struct osd_thread_info *info,
struct osd_object *dir,
struct inode *parent_dir, const char *name,
const struct lu_fid *dot_fid,
const struct lu_fid *dot_dot_fid,
struct thandle *th)
{
struct inode *inode = dir->oo_inode;
struct osd_thandle *oth;
int result = 0;
oth = container_of(th, struct osd_thandle, ot_super);
LASSERT(oth->ot_handle->h_transaction != NULL);
LASSERT(S_ISDIR(dir->oo_inode->i_mode));
if (strcmp(name, dot) == 0) {
if (dir->oo_compat_dot_created) {
result = -EEXIST;
} else {
LASSERT(inode->i_ino == parent_dir->i_ino);
dir->oo_compat_dot_created = 1;
result = 0;
}
} else if (strcmp(name, dotdot) == 0) {
if (!dir->oo_compat_dot_created)
return -EINVAL;
/* in case of rename, dotdot is already created */
if (dir->oo_compat_dotdot_created) {
return __osd_ea_add_rec(info, dir, parent_dir, name,
dot_dot_fid, NULL, th);
}
if (CFS_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
struct lu_fid tfid = *dot_dot_fid;
tfid.f_oid--;
result = osd_add_dot_dotdot_internal(info,
dir->oo_inode, parent_dir, dot_fid,
&tfid, oth);
} else {
result = osd_add_dot_dotdot_internal(info,
dir->oo_inode, parent_dir, dot_fid,
dot_dot_fid, oth);
}
if (result == 0)
dir->oo_compat_dotdot_created = 1;
}
return result;
}
/**
* It will call the appropriate osd_add* function and return the
* value, return by respective functions.
*/
static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
struct inode *cinode, const char *name,
const struct lu_fid *fid, struct thandle *th)
{
struct osd_thread_info *info = osd_oti_get(env);
struct htree_lock *hlock;
int rc;
hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
if (name[0] == '.' && (name[1] == '\0' ||
(name[1] == '.' && name[2] == '\0'))) {
if (hlock != NULL) {
ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
pobj->oo_inode, 0);
} else {
down_write(&pobj->oo_ext_idx_sem);
}
rc = osd_add_dot_dotdot(info, pobj, cinode, name,
lu_object_fid(&pobj->oo_dt.do_lu),
fid, th);
} else {
if (hlock != NULL) {
ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
pobj->oo_inode, LDISKFS_HLOCK_ADD);
} else {
down_write(&pobj->oo_ext_idx_sem);
}
if (CFS_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
struct lu_fid *tfid = &info->oti_fid;
*tfid = *fid;
tfid->f_ver = ~0;
rc = __osd_ea_add_rec(info, pobj, cinode, name,
tfid, hlock, th);
} else {
rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
hlock, th);
}
}
if (!rc && fid_is_namespace_visible(lu_object_fid(&pobj->oo_dt.do_lu))){
int dirent_count = atomic_read(&pobj->oo_dirent_count);
/* avoid extremely unlikely 2B-entry directory overflow case */
if (dirent_count != LU_DIRENT_COUNT_UNSET &&
likely(dirent_count < INT_MAX - NR_CPUS))
atomic_inc(&pobj->oo_dirent_count);
}
if (hlock != NULL)
ldiskfs_htree_unlock(hlock);
else
up_write(&pobj->oo_ext_idx_sem);
return rc;
}
static int
osd_ldiskfs_consistency_check(struct osd_thread_info *oti,
struct osd_device *dev,
const struct lu_fid *fid,
struct osd_inode_id *id)
{
struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
struct inode *inode = NULL;
int once = 0;
bool insert;
int rc;
ENTRY;
if (!scrub_needs_check(scrub, fid, id->oii_ino))
RETURN(0);
again:
rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
if (rc == -ENOENT) {
__u32 gen = id->oii_gen;
insert = true;
if (inode != NULL)
goto trigger;
inode = osd_iget(oti, dev, id, 0);
/* The inode has been removed (by race maybe). */
if (IS_ERR(inode)) {
rc = PTR_ERR(inode);
RETURN(rc == -ESTALE ? -ENOENT : rc);
}
/* The OI mapping is lost. */
if (gen != OSD_OII_NOGEN)
goto trigger;
/*
* The inode may has been reused by others, we do not know,
* leave it to be handled by subsequent osd_fid_lookup().
*/
GOTO(out, rc = 0);
} else if (rc || osd_id_eq(id, &oti->oti_id)) {
GOTO(out, rc);
}
insert = false;
trigger:
if (scrub->os_running) {
if (inode == NULL) {
inode = osd_iget(oti, dev, id, 0);
/* The inode has been removed (by race maybe). */
if (IS_ERR(inode)) {
rc = PTR_ERR(inode);
RETURN(rc == -ESTALE ? -ENOENT : rc);
}
}
rc = osd_scrub_oi_insert(dev, fid, id, insert);
/*
* There is race condition between osd_oi_lookup and OI scrub.
* The OI scrub finished just after osd_oi_lookup() failure.
* Under such case, it is unnecessary to trigger OI scrub again,
* but try to call osd_oi_lookup() again.
*/
if (unlikely(rc == -EAGAIN))
goto again;
if (!S_ISDIR(inode->i_mode))
rc = 0;
else
rc = osd_check_lmv(oti, dev, inode);
GOTO(out, rc);
}
if (dev->od_scrub.os_scrub.os_auto_scrub_interval != AS_NEVER &&
++once == 1) {
rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
CDEBUG_LIMIT(D_LFSCK | D_CONSOLE | D_WARNING,
"%s: trigger partial OI scrub for RPC inconsistency, checking FID "DFID"/%u: rc = %d\n",
osd_dev2name(dev), PFID(fid), id->oii_ino, rc);
if (rc == 0 || rc == -EALREADY)
goto again;
}
GOTO(out, rc);
out:
iput(inode);
RETURN(rc);
}
static int osd_fail_fid_lookup(struct osd_thread_info *oti,
struct osd_device *dev,
struct lu_fid *fid, __u32 ino)
{
struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
struct osd_idmap_cache *oic = &oti->oti_cache;
struct inode *inode;
int rc;
osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
inode = osd_iget(oti, dev, &oic->oic_lid, 0);
if (IS_ERR(inode)) {
fid_zero(&oic->oic_fid);
return PTR_ERR(inode);
}
rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
iput(inode);
if (rc != 0)
fid_zero(&oic->oic_fid);
else
*fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
return rc;
}
void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
struct osd_inode_id *id, const struct lu_fid *fid)
{
CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
id->oii_ino, id->oii_gen, info);
info->oti_cache.oic_lid = *id;
info->oti_cache.oic_fid = *fid;
info->oti_cache.oic_dev = osd;
}
/**
* Get parent FID from the linkEA.
*
* For a directory which parent resides on remote MDT, to satisfy the
* local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
* the other hand, to make the lookup(..) on the directory can return
* the real parent FID, we append the real parent FID after its ".."
* name entry in the /REMOTE_PARENT_DIR.
*
* Unfortunately, such PFID-in-dirent cannot be preserved via file-level
* backup. So after the restore, we cannot get the right parent FID from
* its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
* we have stored the real parent FID in the directory object's linkEA,
* we can parse the linkEA for the real parent FID.
*
* \param[in] env pointer to the thread context
* \param[in] obj pointer to the object to be handled
* \param[out]fid pointer to the buffer to hold the parent FID
*
* \retval 0 for getting the real parent FID successfully
* \retval negative error number on failure
*/
static int osd_get_pfid_from_linkea(const struct lu_env *env,
struct osd_object *obj,
struct lu_fid *fid)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct lu_buf *buf = &oti->oti_big_buf;
struct dentry *dentry = &oti->oti_obj_dentry;
struct inode *inode = obj->oo_inode;
struct linkea_data ldata = { NULL };
int rc;
ENTRY;
fid_zero(fid);
if (!S_ISDIR(inode->i_mode))
RETURN(-EIO);
again:
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
buf->lb_buf, buf->lb_len);
if (rc == -ERANGE) {
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
NULL, 0);
if (rc > 0) {
lu_buf_realloc(buf, rc);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
goto again;
}
}
if (unlikely(rc == 0))
RETURN(-ENODATA);
if (rc < 0)
RETURN(rc);
if (unlikely(buf->lb_buf == NULL)) {
lu_buf_realloc(buf, rc);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
goto again;
}
ldata.ld_buf = buf;
rc = linkea_init_with_rec(&ldata);
if (!rc) {
linkea_first_entry(&ldata);
linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
}
RETURN(rc);
}
static int osd_verify_ent_by_linkea(const struct lu_env *env,
struct inode *inode,
const struct lu_fid *pfid,
const char *name, const int namelen)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct lu_buf *buf = &oti->oti_big_buf;
struct dentry *dentry = &oti->oti_obj_dentry;
struct linkea_data ldata = { NULL };
struct lu_name cname = { .ln_name = name,
.ln_namelen = namelen };
int rc;
ENTRY;
again:
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
buf->lb_buf, buf->lb_len);
if (rc == -ERANGE)
rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
if (rc < 0)
RETURN(rc);
if (unlikely(rc == 0))
RETURN(-ENODATA);
if (buf->lb_len < rc) {
lu_buf_realloc(buf, rc);
if (buf->lb_buf == NULL)
RETURN(-ENOMEM);
goto again;
}
ldata.ld_buf = buf;
rc = linkea_init_with_rec(&ldata);
if (!rc)
rc = linkea_links_find(&ldata, &cname, pfid);
RETURN(rc);
}
/**
* Calls ->lookup() to find dentry. From dentry get inode and
* read inode's ea to get fid. This is required for interoperability
* mode (b11826)
*
* \retval 0, on success
* \retval -ve, on error
*/
static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
struct dt_rec *rec, const struct lu_name *ln)
{
struct inode *dir = obj->oo_inode;
struct dentry *dentry;
struct ldiskfs_dir_entry_2 *de;
struct buffer_head *bh;
struct lu_fid *fid = (struct lu_fid *)rec;
struct htree_lock *hlock = NULL;
__u32 ino;
int rc;
ENTRY;
LASSERT(dir->i_op != NULL);
LASSERT(dir->i_op->lookup != NULL);
dentry = osd_child_dentry_get(env, obj, ln->ln_name, ln->ln_namelen);
if (obj->oo_hl_head != NULL) {
hlock = osd_oti_get(env)->oti_hlock;
ldiskfs_htree_lock(hlock, obj->oo_hl_head,
dir, LDISKFS_HLOCK_LOOKUP);
} else {
down_read(&obj->oo_ext_idx_sem);
}
bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
if (!IS_ERR(bh)) {
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_inode_id *id = &oti->oti_id;
struct osd_device *dev = osd_obj2dev(obj);
ino = le32_to_cpu(de->inode);
if (CFS_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
brelse(bh);
rc = osd_fail_fid_lookup(oti, dev, fid, ino);
GOTO(out, rc);
}
rc = osd_get_fid_from_dentry(de, rec);
/* done with de, release bh */
brelse(bh);
if (rc != 0) {
if (unlikely(is_remote_parent_ino(dev, ino))) {
/*
* If the parent is on remote MDT, and there
* is no FID-in-dirent, then we have to get
* the parent FID from the linkEA.
*/
if (likely(ln->ln_namelen == 2 &&
ln->ln_name[0] == '.' && ln->ln_name[1] == '.'))
rc = osd_get_pfid_from_linkea(env, obj,
fid);
} else {
rc = osd_ea_fid_get(env, obj, ino, fid, id);
}
} else {
osd_id_gen(id, ino, OSD_OII_NOGEN);
}
if (rc != 0 || osd_remote_fid(env, dev, fid))
GOTO(out, rc);
rc = osd_ldiskfs_consistency_check(oti, dev, fid, id);
if (rc != -ENOENT) {
/* Other error should not affect lookup result. */
rc = 0;
/* Normal file mapping should be added into OI cache
* after FID in LMA check, but for local files like
* hsm_actions, their FIDs are not stored in OI files,
* see osd_initial_OI_scrub(), and here is the only
* place to load mapping into OI cache.
*/
if (!fid_is_namespace_visible(fid))
osd_add_oi_cache(osd_oti_get(env),
osd_obj2dev(obj), id, fid);
}
CDEBUG(D_INODE, DFID"/"DNAME" => "DFID"\n",
PFID(lu_object_fid(&obj->oo_dt.do_lu)),
encode_fn_luname(ln), PFID(fid));
} else {
rc = PTR_ERR(bh);
}
GOTO(out, rc);
out:
if (hlock != NULL)
ldiskfs_htree_unlock(hlock);
else
up_read(&obj->oo_ext_idx_sem);
RETURN(rc);
}
static int osd_index_declare_ea_insert(const struct lu_env *env,
struct dt_object *dt,
const struct dt_rec *rec,
const struct dt_key *key,
struct thandle *handle)
{
struct osd_thandle *oh;
struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
const struct lu_fid *fid = rec1->rec_fid;
int credits, rc = 0;
struct osd_idmap_cache *idc;
ENTRY;
LASSERT(!dt_object_remote(dt));
LASSERT(handle != NULL);
LASSERT(fid != NULL);
LASSERT(rec1->rec_type != 0);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_handle == NULL);
credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
/*
* we can't call iget() while a transactions is running
* (this can lead to a deadlock), but we need to know
* inum and object type. so we find this information at
* declaration and cache in per-thread info
*/
idc = osd_idc_find_or_init(env, osd, fid);
if (IS_ERR(idc))
RETURN(PTR_ERR(idc));
if (idc->oic_remote) {
/*
* a reference to remote inode is represented by an
* agent inode which we have to create
*/
credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
}
osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
if (osd_dt_obj(dt)->oo_inode != NULL) {
struct inode *inode = osd_dt_obj(dt)->oo_inode;
/*
* We ignore block quota on meta pool (MDTs), so needn't
* calculate how many blocks will be consumed by this index
* insert
*/
rc = osd_declare_inode_qid(env, i_uid_read(inode),
i_gid_read(inode),
i_projid_read(inode), 0,
oh, osd_dt_obj(dt), NULL,
OSD_QID_BLK);
if (rc)
RETURN(rc);
/*
* Reserve credits for local agent inode to transfer
* to 0, quota enforcement is ignored in this case.
*/
if (idc->oic_remote &&
LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
i_projid_read(inode) != 0)
rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
0, i_projid_read(inode),
0, false, PRJQUOTA);
}
RETURN(rc);
}
/**
* Index add function for interoperability mode (b11826).
* It will add the directory entry.This entry is needed to
* maintain name->fid mapping.
*
* \param key it is key i.e. file entry to be inserted
* \param rec it is value of given key i.e. fid
*
* \retval 0, on success
* \retval -ve, on error
*/
static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
const struct dt_rec *rec,
const struct dt_key *key, struct thandle *th)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
const struct lu_fid *fid = rec1->rec_fid;
const char *name = (const char *)key;
int namelen = strlen(name);
struct osd_thread_info *oti = osd_oti_get(env);
struct inode *child_inode = NULL;
struct osd_idmap_cache *idc;
int rc;
ENTRY;
if (!dt_object_exists(dt))
RETURN(-ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(!dt_object_remote(dt));
LASSERT(th != NULL);
osd_trans_exec_op(env, th, OSD_OT_INSERT);
LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
idc = osd_idc_find(env, osd, fid);
if (unlikely(idc == NULL)) {
idc = osd_idc_find_or_init(env, osd, fid);
if (IS_ERR(idc)) {
/*
* this dt_insert() wasn't declared properly, so
* FID is missing in OI cache. we better do not
* lookup FID in FLDB/OI and don't risk to deadlock,
* but in some special cases (lfsck testing, etc)
* it's much simpler than fixing a caller.
*
* normally this error should be placed after the first
* find, but migrate may attach source stripes to
* target, which doesn't create stripes.
*/
CERROR("%s: "DFID" wasn't declared for insert\n",
osd_name(osd), PFID(fid));
dump_stack();
RETURN(PTR_ERR(idc));
}
}
if (idc->oic_remote) {
/* Insert remote entry */
if (strcmp(name, dotdot) == 0 && namelen == 2) {
child_inode =
igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
} else {
child_inode = osd_create_local_agent_inode(env, osd,
obj, fid, rec1->rec_type & S_IFMT, th);
if (IS_ERR(child_inode))
RETURN(PTR_ERR(child_inode));
}
} else {
/* Insert local entry */
if (unlikely(idc->oic_lid.oii_ino == 0)) {
/* for a reason OI cache wasn't filled properly */
CERROR("%s: OIC for "DFID" isn't filled\n",
osd_name(osd), PFID(fid));
RETURN(-EINVAL);
}
child_inode = oti->oti_inode;
if (unlikely(child_inode == NULL)) {
struct ldiskfs_inode_info *lii;
OBD_ALLOC_PTR(lii);
if (lii == NULL)
RETURN(-ENOMEM);
child_inode = oti->oti_inode = &lii->vfs_inode;
}
child_inode->i_sb = osd_sb(osd);
child_inode->i_ino = idc->oic_lid.oii_ino;
child_inode->i_mode = rec1->rec_type & S_IFMT;
}
rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
obj->oo_inode->i_ino, encode_fn_len(name, namelen),
child_inode->i_ino, rc);
if (child_inode && child_inode != oti->oti_inode)
iput(child_inode);
LASSERT(osd_invariant(obj));
osd_trans_exec_check(env, th, OSD_OT_INSERT);
RETURN(rc);
}
/**
* Initialize osd Iterator for given osd index object.
*
* \param dt osd index object
*/
static struct dt_it *osd_it_iam_init(const struct lu_env *env,
struct dt_object *dt,
__u32 unused)
{
struct osd_it_iam *it;
struct osd_object *obj = osd_dt_obj(dt);
struct lu_object *lo = &dt->do_lu;
struct iam_path_descr *ipd;
struct iam_container *bag = &obj->oo_dir->od_container;
if (!dt_object_exists(dt))
return ERR_PTR(-ENOENT);
OBD_ALLOC_PTR(it);
if (it == NULL)
return ERR_PTR(-ENOMEM);
ipd = osd_it_ipd_get(env, bag);
if (likely(ipd != NULL)) {
it->oi_obj = obj;
it->oi_ipd = ipd;
lu_object_get(lo);
iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
return (struct dt_it *)it;
} else {
OBD_FREE_PTR(it);
return ERR_PTR(-ENOMEM);
}
}
/**
* free given Iterator.
*/
static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
struct osd_object *obj = it->oi_obj;
iam_it_fini(&it->oi_it);
osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
osd_object_put(env, obj);
OBD_FREE_PTR(it);
}
/**
* Move Iterator to record specified by \a key
*
* \param di osd iterator
* \param key key for index
*
* \retval +ve di points to record with least key not larger than key
* \retval 0 di points to exact matched key
* \retval -ve failure
*/
static int osd_it_iam_get(const struct lu_env *env,
struct dt_it *di, const struct dt_key *key)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_it_iam *it = (struct osd_it_iam *)di;
if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
/* swab quota uid/gid */
oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
key = (struct dt_key *)&oti->oti_quota_id;
}
return iam_it_get(&it->oi_it, (const struct iam_key *)key);
}
/**
* Release Iterator
*
* \param di osd iterator
*/
static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
iam_it_put(&it->oi_it);
}
/**
* Move iterator by one record
*
* \param di osd iterator
*
* \retval +1 end of container reached
* \retval 0 success
* \retval -ve failure
*/
static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
return iam_it_next(&it->oi_it);
}
/**
* Return pointer to the key under iterator.
*/
static struct dt_key *osd_it_iam_key(const struct lu_env *env,
const struct dt_it *di)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_it_iam *it = (struct osd_it_iam *)di;
struct osd_object *obj = it->oi_obj;
struct dt_key *key;
key = (struct dt_key *)iam_it_key_get(&it->oi_it);
if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
/* swab quota uid/gid */
oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
key = (struct dt_key *)&oti->oti_quota_id;
}
return key;
}
/**
* Return size of key under iterator (in bytes)
*/
static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
return iam_it_key_size(&it->oi_it);
}
static inline void
osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
{
/* check if file type is required */
if (ent->lde_attrs & LUDA_TYPE) {
struct luda_type *lt;
int align = sizeof(*lt) - 1;
len = (len + align) & ~align;
lt = (struct luda_type *)(ent->lde_name + len);
lt->lt_type = cpu_to_le16(DTTOIF(type));
}
ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
}
/**
* build lu direct from backend fs dirent.
*/
static inline void
osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
char *name, __u16 namelen, __u16 type, __u32 attr)
{
ent->lde_attrs = attr | LUDA_FID;
fid_cpu_to_le(&ent->lde_fid, fid);
ent->lde_hash = cpu_to_le64(offset);
ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
strncpy(ent->lde_name, name, namelen);
ent->lde_name[namelen] = '\0';
ent->lde_namelen = cpu_to_le16(namelen);
/* append lustre attributes */
osd_it_append_attrs(ent, namelen, type);
}
/**
* Return pointer to the record under iterator.
*/
static int osd_it_iam_rec(const struct lu_env *env,
const struct dt_it *di,
struct dt_rec *dtrec, __u32 attr)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
struct osd_thread_info *info = osd_oti_get(env);
ENTRY;
if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
const struct osd_fid_pack *rec;
struct lu_fid *fid = &info->oti_fid;
struct lu_dirent *lde = (struct lu_dirent *)dtrec;
char *name;
int namelen;
__u64 hash;
int rc;
name = (char *)iam_it_key_get(&it->oi_it);
if (IS_ERR(name))
RETURN(PTR_ERR(name));
namelen = iam_it_key_size(&it->oi_it);
rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
if (IS_ERR(rec))
RETURN(PTR_ERR(rec));
rc = osd_fid_unpack(fid, rec);
if (rc)
RETURN(rc);
hash = iam_it_store(&it->oi_it);
/* IAM does not store object type in IAM index (dir) */
osd_it_pack_dirent(lde, fid, hash, name, namelen,
0, LUDA_FID);
} else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
iam_reccpy(&it->oi_it.ii_path.ip_leaf,
(struct iam_rec *)dtrec);
osd_quota_unpack(it->oi_obj, dtrec);
} else {
iam_reccpy(&it->oi_it.ii_path.ip_leaf,
(struct iam_rec *)dtrec);
}
RETURN(0);
}
/**
* Returns cookie for current Iterator position.
*/
static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
return iam_it_store(&it->oi_it);
}
/**
* Restore iterator from cookie.
*
* \param di osd iterator
* \param hash Iterator location cookie
*
* \retval +ve di points to record with least key not larger than key.
* \retval 0 di points to exact matched key
* \retval -ve failure
*/
static int osd_it_iam_load(const struct lu_env *env,
const struct dt_it *di, __u64 hash)
{
struct osd_it_iam *it = (struct osd_it_iam *)di;
return iam_it_load(&it->oi_it, hash);
}
static const struct dt_index_operations osd_index_iam_ops = {
.dio_lookup = osd_index_iam_lookup,
.dio_declare_insert = osd_index_declare_iam_insert,
.dio_insert = osd_index_iam_insert,
.dio_declare_delete = osd_index_declare_iam_delete,
.dio_delete = osd_index_iam_delete,
.dio_it = {
.init = osd_it_iam_init,
.fini = osd_it_iam_fini,
.get = osd_it_iam_get,
.put = osd_it_iam_put,
.next = osd_it_iam_next,
.key = osd_it_iam_key,
.key_size = osd_it_iam_key_size,
.rec = osd_it_iam_rec,
.store = osd_it_iam_store,
.load = osd_it_iam_load
}
};
struct osd_it_ea *osd_it_dir_init(const struct lu_env *env,
struct osd_device *dev,
struct inode *inode, u32 attr)
{
struct osd_thread_info *info = osd_oti_get(env);
struct osd_it_ea *oie;
struct file *file;
struct dentry *obj_dentry;
int rc = -ENOMEM;
ENTRY;
OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
if (oie == NULL)
RETURN(ERR_PTR(-ENOMEM));
obj_dentry = &oie->oie_dentry;
obj_dentry->d_inode = inode;
obj_dentry->d_sb = inode->i_sb;
obj_dentry->__d_name.hash = 0;
oie->oie_rd_dirent = 0;
oie->oie_it_dirent = 0;
oie->oie_dirent = NULL;
if (unlikely(!info->oti_it_ea_buf_used)) {
oie->oie_buf = info->oti_it_ea_buf;
info->oti_it_ea_buf_used = 1;
} else {
OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
if (!oie->oie_buf)
GOTO(out_free, rc);
}
oie->oie_obj = NULL;
file = &oie->oie_file;
rc = compat_security_file_alloc(file);
if (rc)
GOTO(out_free, rc);
/* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
if (attr & LUDA_64BITHASH)
file->f_mode |= FMODE_64BITHASH;
else
file->f_mode |= FMODE_32BITHASH;
file->f_mode |= FMODE_NONOTIFY;
file->__f_path.dentry = obj_dentry;
file->f_flags = O_NOATIME;
file->f_mapping = inode->i_mapping;
file->f_op = inode->i_fop;
file->f_inode = inode;
/* Linux v6.11-rc4-18-g4f05ee2f82b4: if open handler is defined
* and private_data is not yet provided the file open needs
* to fill private_data before iterate_shared() is called.
*/
if (file->f_op->open && !file->private_data) {
rc = file->f_op->open(inode, file);
if (rc)
GOTO(out_free, rc);
}
RETURN(oie);
out_free:
OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
return ERR_PTR(rc);
}
/**
* Creates or initializes iterator context.
*
* \retval struct osd_it_ea, iterator structure on success
*
*/
static struct dt_it *osd_it_ea_init(const struct lu_env *env,
struct dt_object *dt,
__u32 attr)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *dev = osd_obj2dev(obj);
struct lu_object *lo = &dt->do_lu;
struct osd_it_ea *oie;
ENTRY;
if (!dt_object_exists(dt) || obj->oo_destroyed)
RETURN(ERR_PTR(-ENOENT));
oie = osd_it_dir_init(env, dev, obj->oo_inode, attr);
if (IS_ERR(oie))
RETURN(ERR_CAST(oie));
oie->oie_obj = obj;
lu_object_get(lo);
RETURN((struct dt_it *)oie);
}
void osd_it_dir_fini(const struct lu_env *env, struct osd_it_ea *oie,
struct inode *inode)
{
struct osd_thread_info *info = osd_oti_get(env);
ENTRY;
oie->oie_file.f_op->release(inode, &oie->oie_file);
if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
else
info->oti_it_ea_buf_used = 0;
OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
EXIT;
}
/**
* Destroy or finishes iterator context.
*
* \param di iterator structure to be destroyed
*/
static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
{
struct osd_it_ea *oie = (struct osd_it_ea *)di;
struct osd_object *obj = oie->oie_obj;
struct inode *inode = obj->oo_inode;
ENTRY;
osd_it_dir_fini(env, (struct osd_it_ea *)di, inode);
osd_object_put(env, obj);
EXIT;
}
/**
* It position the iterator at given key, so that next lookup continues from
* that key Or it is similar to dio_it->load() but based on a key,
* rather than file position.
*
* As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
* to the beginning.
*
* TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
*/
static int osd_it_ea_get(const struct lu_env *env,
struct dt_it *di, const struct dt_key *key)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
ENTRY;
LASSERT(((const char *)key)[0] == '\0');
it->oie_file.f_pos = 0;
it->oie_rd_dirent = 0;
it->oie_it_dirent = 0;
it->oie_dirent = NULL;
RETURN(+1);
}
/**
* Does nothing
*/
static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
{
}
struct osd_filldir_cbs {
struct dir_context ctx;
struct osd_it_ea *it;
};
/**
* It is called internally by ->iterate*(). It fills the
* iterator's in-memory data structure with required
* information i.e. name, namelen, rec_size etc.
*
* \param buf in which information to be filled in.
* \param name name of the file in given dir
*
* \retval 0 on success
* \retval 1 on buffer full
*/
static FILLDIR_TYPE do_osd_ldiskfs_filldir(struct dir_context *ctx,
const char *name, int namelen,
loff_t offset, u64 ino,
unsigned int d_type)
{
struct osd_it_ea *it = ((struct osd_filldir_cbs *)ctx)->it;
struct osd_object *obj = it->oie_obj;
struct osd_it_ea_dirent *ent = it->oie_dirent;
struct lu_fid *fid = &ent->oied_fid;
char *buf = it->oie_buf;
struct osd_fid_pack *rec;
ENTRY;
/* this should never happen */
if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
int rc = -EIO;
CERROR("%s: ldiskfs return invalid namelen %d: rc = %d\n",
osd_obj2dev(obj)->od_svname, namelen, rc);
RETURN(rc);
}
/* Check for enough space. Note oied_name is not NUL terminated. */
if (&ent->oied_name[namelen] > buf + OSD_IT_EA_BUFSIZE)
RETURN(1);
/* "." is just the object itself. */
if (namelen == 1 && name[0] == '.') {
if (obj != NULL)
*fid = obj->oo_dt.do_lu.lo_header->loh_fid;
} else if (d_type & LDISKFS_DIRENT_LUFID) {
rec = (struct osd_fid_pack *)(name + namelen + 1);
if (osd_fid_unpack(fid, rec) != 0)
fid_zero(fid);
} else {
fid_zero(fid);
}
d_type &= ~LDISKFS_DIRENT_LUFID;
/* NOT export local root. */
if (obj != NULL &&
unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
ino = obj->oo_inode->i_ino;
*fid = obj->oo_dt.do_lu.lo_header->loh_fid;
}
if (obj == NULL || !(obj->oo_lma_flags & LUSTRE_ENCRYPT_FL)) {
ent->oied_namelen = namelen;
memcpy(ent->oied_name, name, namelen);
} else {
int encoded_namelen = critical_chars(name, namelen);
/* Check again for enough space. */
if (&ent->oied_name[encoded_namelen] > buf + OSD_IT_EA_BUFSIZE)
RETURN(1);
ent->oied_namelen = encoded_namelen;
if (encoded_namelen == namelen)
memcpy(ent->oied_name, name, namelen);
else
critical_encode(name, namelen, ent->oied_name);
}
ent->oied_ino = ino;
ent->oied_off = offset;
ent->oied_type = d_type;
it->oie_rd_dirent++;
it->oie_dirent = (void *)ent + round_up(sizeof(*ent) + ent->oied_namelen, 8);
RETURN(0);
}
WRAP_FILLDIR_FN(do_, osd_ldiskfs_filldir)
/**
* Calls ->iterate*() to load a directory entry at a time
* and stored it in iterator's in-memory data structure.
*
* \param di iterator's in memory structure
*
* \retval 0 on success
* \retval -ve on error
* \retval +1 reach the end of entry
*/
int osd_ldiskfs_it_fill(const struct lu_env *env, const struct dt_it *di)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
struct osd_object *obj = it->oie_obj;
struct htree_lock *hlock = NULL;
struct file *filp = &it->oie_file;
int rc = 0;
struct osd_filldir_cbs buf = {
.ctx.actor = osd_ldiskfs_filldir,
.it = it
};
ENTRY;
it->oie_dirent = it->oie_buf;
it->oie_rd_dirent = 0;
if (obj) {
if (obj->oo_hl_head != NULL) {
hlock = osd_oti_get(env)->oti_hlock;
ldiskfs_htree_lock(hlock, obj->oo_hl_head,
obj->oo_inode,
LDISKFS_HLOCK_READDIR);
} else {
down_read(&obj->oo_ext_idx_sem);
}
}
rc = iterate_dir(filp, &buf.ctx);
if (rc)
GOTO(unlock, rc);
if (it->oie_rd_dirent == 0) {
/*
* If it does not get any dirent, it means it has been reached
* to the end of the dir
*/
it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
if (rc == 0)
rc = 1;
} else {
it->oie_dirent = it->oie_buf;
it->oie_it_dirent = 1;
}
unlock:
if (obj) {
if (hlock != NULL)
ldiskfs_htree_unlock(hlock);
else
up_read(&obj->oo_ext_idx_sem);
}
RETURN(rc);
}
/**
* It calls osd_ldiskfs_it_fill() which will use ->iterate*()
* to load a directory entry at a time and stored it in
* iterator's in-memory data structure.
*
* \param di iterator's in memory structure
*
* \retval +ve iterator reached to end
* \retval 0 iterator not reached to end
* \retval -ve on error
*/
static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
int rc;
ENTRY;
if (it->oie_it_dirent < it->oie_rd_dirent) {
it->oie_dirent =
(void *)it->oie_dirent +
round_up(sizeof(struct osd_it_ea_dirent) +
it->oie_dirent->oied_namelen, 8);
it->oie_it_dirent++;
rc = 0;
} else {
if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
rc = 1;
else
rc = osd_ldiskfs_it_fill(env, di);
}
RETURN(rc);
}
/**
* Returns the key at current position from iterator's in memory structure.
*
* \param di iterator's in memory structure
*
* \retval key i.e. struct dt_key on success
*/
static struct dt_key *osd_it_ea_key(const struct lu_env *env,
const struct dt_it *di)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
return (struct dt_key *)it->oie_dirent->oied_name;
}
/**
* Returns key's size at current position from iterator's in memory structure.
*
* \param di iterator's in memory structure
*
* \retval key_size i.e. struct dt_key on success
*/
static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
return it->oie_dirent->oied_namelen;
}
#if defined LDISKFS_DIR_ENTRY_LEN && defined LDISKFS_DIR_ENTRY_LEN_
#undef LDISKFS_DIR_REC_LEN
# if defined LDISKFS_DIR_REC_LEN_WITH_DIR
# define LDISKFS_DIR_REC_LEN(de, dir) LDISKFS_DIR_ENTRY_LEN_((de), (dir))
# else
# define LDISKFS_DIR_REC_LEN(de) LDISKFS_DIR_ENTRY_LEN_((de))
# endif
#endif
#if defined LDISKFS_DIR_REC_LEN_WITH_DIR
# define LDISKFS_DIR_REC_LEN_DIR(de) LDISKFS_DIR_REC_LEN((de), NULL)
#else
# define LDISKFS_DIR_REC_LEN_DIR(de) LDISKFS_DIR_REC_LEN((de))
#endif
static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
{
if (LDISKFS_DIR_REC_LEN_DIR(de) >=
__LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
return true;
return false;
}
static inline bool
osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
unsigned int blocksize, bool dotdot)
{
if (dotdot)
return osd_dotdot_has_space(de);
if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
__LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
return true;
return false;
}
static int
osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
handle_t *jh, struct dentry *dentry,
const struct lu_fid *fid, struct buffer_head *bh,
struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
bool dotdot)
{
struct inode *dir = dentry->d_parent->d_inode;
struct inode *inode = dentry->d_inode;
struct osd_fid_pack *rec;
struct ldiskfs_dentry_param *ldp;
int namelen = dentry->d_name.len;
int rc;
struct osd_thread_info *info = osd_oti_get(env);
ENTRY;
if (!ldiskfs_has_feature_dirdata(inode->i_sb))
RETURN(0);
/* There is enough space to hold the FID-in-dirent. */
if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
rc = osd_ldiskfs_journal_get_write_access(jh, dir->i_sb, bh,
LDISKFS_JTR_NONE);
if (rc != 0)
RETURN(rc);
de->name[namelen] = 0;
rec = (struct osd_fid_pack *)(de->name + namelen + 1);
rec->fp_len = sizeof(struct lu_fid) + 1;
fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
de->file_type |= LDISKFS_DIRENT_LUFID;
rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
RETURN(rc);
}
LASSERT(!dotdot);
rc = ldiskfs_delete_entry(jh, dir, de, bh);
if (rc != 0)
RETURN(rc);
ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
osd_get_ldiskfs_dirent_param(ldp, fid);
dentry->d_fsdata = (void *)ldp;
dquot_initialize(dir);
rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
/*
* It is too bad, we cannot reinsert the name entry back.
* That means we lose it!
*/
if (rc != 0)
CDEBUG(D_LFSCK,
"%s: fail to reinsert the dirent, dir = %lu/%u, name = "DNAME", "DFID": rc = %d\n",
osd_ino2name(inode), dir->i_ino, dir->i_generation,
encode_fn_dentry(dentry), PFID(fid), rc);
RETURN(rc);
}
static int
osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
struct osd_it_ea *it, struct lu_fid *fid,
struct osd_inode_id *id, __u32 *attr)
{
struct osd_thread_info *info = osd_oti_get(env);
struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
struct osd_device *dev = osd_obj2dev(obj);
struct super_block *sb = osd_sb(dev);
const char *devname = osd_name(dev);
struct osd_it_ea_dirent *ent = it->oie_dirent;
struct inode *dir = obj->oo_inode;
struct htree_lock *hlock = NULL;
struct buffer_head *bh = NULL;
handle_t *jh = NULL;
struct ldiskfs_dir_entry_2 *de;
struct dentry *dentry;
struct inode *inode;
const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
int credits;
int rc;
bool dotdot = false;
bool dirty = false;
struct lu_name ln;
ENTRY;
if (ent->oied_name[0] == '.') {
if (ent->oied_namelen == 1)
RETURN(0);
if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
dotdot = true;
}
osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
inode = osd_iget(info, dev, id, 0);
if (IS_ERR(inode)) {
rc = PTR_ERR(inode);
if (rc == -ENOENT || rc == -ESTALE) {
/*
* Maybe dangling name entry, or
* corrupted directory entry.
*/
*attr |= LUDA_UNKNOWN;
rc = 0;
} else {
CDEBUG(D_LFSCK,
"%s: fail to iget() for dirent check_repair, dir = %lu/%u, name = "DNAME", ino = %llu: rc = %d\n",
devname, dir->i_ino, dir->i_generation,
encode_fn_oied(ent), ent->oied_ino, rc);
}
RETURN(rc);
}
rc = obj_name2lu_name(obj, ent->oied_name, ent->oied_namelen, &ln);
if (rc)
RETURN(rc);
dentry = osd_child_dentry_by_inode(env, dir, ln.ln_name, ln.ln_namelen);
rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
lma = NULL;
else if (rc != 0)
GOTO(out, rc);
/*
* We need to ensure that the name entry is still valid.
* Because it may be removed or renamed by other already.
*
* The unlink or rename operation will start journal before PDO lock,
* so to avoid deadlock, here we need to start journal handle before
* related PDO lock also. But because we do not know whether there
* will be something to be repaired before PDO lock, we just start
* journal without conditions.
*
* We may need to remove the name entry firstly, then insert back.
* One credit is for user quota file update.
* One credit is for group quota file update.
* Two credits are for dirty inode.
*/
credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
if (dev->od_dirent_journal != 0) {
again:
jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
if (IS_ERR(jh)) {
rc = PTR_ERR(jh);
CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
"check_repair, dir = %lu/%u, credits = %d, "
"name = "DNAME", ino = %llu: rc = %d\n",
devname, dir->i_ino, dir->i_generation, credits,
encode_fn_oied(ent), ent->oied_ino, rc);
GOTO(out_inode, rc);
}
if (obj->oo_hl_head != NULL) {
hlock = osd_oti_get(env)->oti_hlock;
/*
* "0" means exclusive lock for the whole directory.
* We need to prevent others access such name entry
* during the delete + insert. Neither HLOCK_ADD nor
* HLOCK_DEL cannot guarantee the atomicity.
*/
ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
} else {
down_write(&obj->oo_ext_idx_sem);
}
} else {
if (obj->oo_hl_head != NULL) {
hlock = osd_oti_get(env)->oti_hlock;
ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
LDISKFS_HLOCK_LOOKUP);
} else {
down_read(&obj->oo_ext_idx_sem);
}
}
bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
*attr |= LUDA_IGNORE;
GOTO(out, rc = 0);
}
/*
* For dotdot entry, if there is not enough space to hold the
* FID-in-dirent, just keep them there. It only happens when the
* device upgraded from 1.8 or restored from MDT file-level backup.
* For the whole directory, only dotdot entry have no FID-in-dirent
* and needs to get FID from LMA when readdir, it will not affect the
* performance much.
*/
if (dotdot && !osd_dotdot_has_space(de)) {
*attr |= LUDA_UNKNOWN;
GOTO(out, rc = 0);
}
if (lma != NULL) {
if (lu_fid_eq(fid, &lma->lma_self_fid))
GOTO(out, rc = 0);
if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
struct lu_fid *tfid = &lma->lma_self_fid;
if (likely(dotdot &&
fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
/*
* It must be REMOTE_PARENT_DIR and as the
* 'dotdot' entry of remote directory
*/
*attr |= LUDA_IGNORE;
} else {
CDEBUG(D_LFSCK, "%s: expect remote agent "
"parent directory, but got "DNAME" under "
"dir = %lu/%u with the FID "DFID"\n",
devname, encode_fn_oied(ent), dir->i_ino,
dir->i_generation, PFID(tfid));
*attr |= LUDA_UNKNOWN;
}
GOTO(out, rc = 0);
}
}
if (!fid_is_zero(fid)) {
rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
ent->oied_namelen);
if (rc == -ENOENT ||
(rc == -ENODATA &&
!(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
/*
* linkEA does not recognize the dirent entry,
* it may because the dirent entry corruption
* and points to other's inode.
*/
CDEBUG(D_LFSCK, "%s: the target inode does not "
"recognize the dirent, dir = %lu/%u, "
" name = "DNAME", ino = %llu, "
DFID": rc = %d\n", devname, dir->i_ino,
dir->i_generation, encode_fn_oied(ent),
ent->oied_ino, PFID(fid), rc);
*attr |= LUDA_UNKNOWN;
GOTO(out, rc = 0);
}
if (rc && rc != -ENODATA) {
CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
"dir = %lu/%u, name = "DNAME", ino = %llu, "
DFID": rc = %d\n", devname, dir->i_ino,
dir->i_generation, encode_fn_oied(ent),
ent->oied_ino, PFID(fid), rc);
*attr |= LUDA_UNKNOWN;
GOTO(out, rc = 0);
}
}
if (lma != NULL) {
/*
* linkEA recognizes the dirent entry, the FID-in-LMA is
* valid, trusted, in spite of fid_is_sane(fid) or not.
*/
if (*attr & LUDA_VERIFY_DRYRUN) {
*fid = lma->lma_self_fid;
*attr |= LUDA_REPAIR;
GOTO(out, rc = 0);
}
if (jh == NULL) {
brelse(bh);
dev->od_dirent_journal = 1;
if (hlock != NULL) {
ldiskfs_htree_unlock(hlock);
hlock = NULL;
} else {
up_read(&obj->oo_ext_idx_sem);
}
goto again;
}
*fid = lma->lma_self_fid;
dirty = true;
/* Update or append the FID-in-dirent. */
rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
bh, de, hlock, dotdot);
if (rc == 0)
*attr |= LUDA_REPAIR;
else
CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
"the dirent, dir = %lu/%u, name = "DNAME", "
"ino = %llu, "DFID": rc = %d\n",
devname, dir->i_ino, dir->i_generation,
encode_fn_oied(ent), ent->oied_ino,
PFID(fid), rc);
} else {
/* lma is NULL, trust the FID-in-dirent if it is valid. */
if (*attr & LUDA_VERIFY_DRYRUN) {
if (fid_is_sane(fid)) {
*attr |= LUDA_REPAIR;
} else if (dev->od_index == 0) {
lu_igif_build(fid, inode->i_ino,
inode->i_generation);
*attr |= LUDA_UPGRADE;
}
GOTO(out, rc = 0);
}
if (jh == NULL) {
brelse(bh);
dev->od_dirent_journal = 1;
if (hlock != NULL) {
ldiskfs_htree_unlock(hlock);
hlock = NULL;
} else {
up_read(&obj->oo_ext_idx_sem);
}
goto again;
}
dirty = true;
if (unlikely(fid_is_sane(fid))) {
/*
* FID-in-dirent exists, but FID-in-LMA is lost.
* Trust the FID-in-dirent, and add FID-in-LMA.
*/
rc = osd_ea_fid_set(info, inode, fid, 0, 0);
if (rc == 0)
*attr |= LUDA_REPAIR;
else
CDEBUG(D_LFSCK, "%s: fail to set LMA for "
"update dirent, dir = %lu/%u, "
"name = "DNAME", ino = %llu, "
DFID": rc = %d\n",
devname, dir->i_ino, dir->i_generation,
encode_fn_oied(ent), ent->oied_ino,
PFID(fid), rc);
} else if (dev->od_index == 0) {
lu_igif_build(fid, inode->i_ino, inode->i_generation);
/*
* It is probably IGIF object. Only aappend the
* FID-in-dirent. OI scrub will process FID-in-LMA.
*/
rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
bh, de, hlock, dotdot);
if (rc == 0)
*attr |= LUDA_UPGRADE;
else
CDEBUG(D_LFSCK, "%s: fail to append IGIF "
"after the dirent, dir = %lu/%u, "
"name = "DNAME", ino = %llu, "
DFID": rc = %d\n",
devname, dir->i_ino, dir->i_generation,
encode_fn_oied(ent), ent->oied_ino,
PFID(fid), rc);
}
}
GOTO(out, rc);
out:
if (!IS_ERR(bh))
brelse(bh);
if (hlock != NULL) {
ldiskfs_htree_unlock(hlock);
} else {
if (dev->od_dirent_journal != 0)
up_write(&obj->oo_ext_idx_sem);
else
up_read(&obj->oo_ext_idx_sem);
}
if (jh != NULL)
ldiskfs_journal_stop(jh);
out_inode:
iput(inode);
if (rc >= 0 && !dirty)
dev->od_dirent_journal = 0;
if (ln.ln_name != ent->oied_name)
kfree(ln.ln_name);
return rc;
}
/**
* Returns the value at current position from iterator's in memory structure.
*
* \param di struct osd_it_ea, iterator's in memory structure
* \param attr attr requested for dirent.
* \param lde lustre dirent
*
* \retval 0 no error and \param lde has correct lustre dirent.
* \retval -ve on error
*/
static inline int osd_it_ea_rec(const struct lu_env *env,
const struct dt_it *di,
struct dt_rec *dtrec, __u32 attr)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
struct osd_object *obj = it->oie_obj;
struct osd_device *dev = osd_obj2dev(obj);
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_inode_id *id = &oti->oti_id;
struct lu_fid *fid = &it->oie_dirent->oied_fid;
struct lu_dirent *lde = (struct lu_dirent *)dtrec;
__u32 ino = it->oie_dirent->oied_ino;
int rc = 0;
ENTRY;
LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
if (attr & LUDA_VERIFY) {
if (unlikely(is_remote_parent_ino(dev, ino))) {
attr |= LUDA_IGNORE;
/*
* If the parent is on remote MDT, and there
* is no FID-in-dirent, then we have to get
* the parent FID from the linkEA.
*/
if (!fid_is_sane(fid) &&
it->oie_dirent->oied_namelen == 2 &&
it->oie_dirent->oied_name[0] == '.' &&
it->oie_dirent->oied_name[1] == '.')
osd_get_pfid_from_linkea(env, obj, fid);
} else {
rc = osd_dirent_check_repair(env, obj, it, fid, id,
&attr);
}
if (!fid_is_sane(fid))
attr |= LUDA_UNKNOWN;
} else {
attr &= ~LU_DIRENT_ATTRS_MASK;
if (!fid_is_sane(fid)) {
bool is_dotdot = false;
if (it->oie_dirent->oied_namelen == 2 &&
it->oie_dirent->oied_name[0] == '.' &&
it->oie_dirent->oied_name[1] == '.')
is_dotdot = true;
/*
* If the parent is on remote MDT, and there
* is no FID-in-dirent, then we have to get
* the parent FID from the linkEA.
*/
if (is_remote_parent_ino(dev, ino) && is_dotdot) {
rc = osd_get_pfid_from_linkea(env, obj, fid);
} else {
if (is_dotdot == false &&
CFS_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
RETURN(-ENOENT);
rc = osd_ea_fid_get(env, obj, ino, fid, id);
}
}
}
/* Pack the entry anyway, at least the offset is right. */
osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
it->oie_dirent->oied_name,
it->oie_dirent->oied_namelen,
it->oie_dirent->oied_type, attr);
RETURN(rc > 0 ? 0 : rc);
}
/**
* Returns the record size size at current position.
*
* This function will return record(lu_dirent) size in bytes.
*
* \param[in] env execution environment
* \param[in] di iterator's in memory structure
* \param[in] attr attribute of the entry, only requires LUDA_TYPE to
* calculate the lu_dirent size.
*
* \retval record size(in bytes & in memory) of the current lu_dirent
* entry.
*/
static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
__u32 attr)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
}
/**
* Returns a cookie for current position of the iterator head, so that
* user can use this cookie to load/start the iterator next time.
*
* \param di iterator's in memory structure
*
* \retval cookie for current position, on success
*/
static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
return it->oie_dirent->oied_off;
}
/**
* It calls osd_ldiskfs_it_fill() which will use ->iterate*()
* to load a directory entry at a time and stored it i inn,
* in iterator's in-memory data structure.
*
* \param di struct osd_it_ea, iterator's in memory structure
*
* \retval +ve on success
* \retval -ve on error
*/
static int osd_it_ea_load(const struct lu_env *env,
const struct dt_it *di, __u64 hash)
{
struct osd_it_ea *it = (struct osd_it_ea *)di;
int rc;
ENTRY;
it->oie_file.f_pos = hash;
rc = osd_ldiskfs_it_fill(env, di);
if (rc > 0)
rc = -ENODATA;
if (rc == 0)
rc = 1;
RETURN(rc);
}
static int osd_olc_lookup(const struct lu_env *env, struct osd_object *obj,
u64 iversion, struct dt_rec *rec,
const struct lu_name *ln, int *result)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_lookup_cache *olc = oti->oti_lookup_cache;
struct osd_device *osd = osd_obj2dev(obj);
struct osd_lookup_cache_object *cobj = &oti->oti_cobj;
int i;
if (unlikely(olc == NULL))
return 0;
if (unlikely(atomic_read(&osd_mount_seq) != olc->olc_mount_seq)) {
/*
* umount has happened, a new OSD could land to the previous
* address so we can't use it any more, invalidate our cache
*/
memset(olc, 0, sizeof(*olc));
olc->olc_mount_seq = atomic_read(&osd_mount_seq);
return 0;
}
memset(cobj, 0, sizeof(*cobj));
cobj->lco_osd = osd;
cobj->lco_ino = obj->oo_inode->i_ino;
cobj->lco_gen = obj->oo_inode->i_generation;
cobj->lco_version = iversion;
for (i = 0; i < OSD_LOOKUP_CACHE_MAX; i++) {
struct osd_lookup_cache_entry *entry;
entry = &olc->olc_entry[i];
/* compare if osd/ino/generation/version match */
if (memcmp(&entry->lce_obj, cobj, sizeof(*cobj)) != 0)
continue;
if (entry->lce_namelen != ln->ln_namelen)
continue;
if (memcmp(entry->lce_name, ln->ln_name, ln->ln_namelen) != 0)
continue;
/* match */
memcpy(rec, &entry->lce_fid, sizeof(entry->lce_fid));
*result = entry->lce_rc;
return 1;
}
return 0;
}
static void osd_olc_save(const struct lu_env *env, struct osd_object *obj,
struct dt_rec *rec, const struct lu_name *ln,
const int result, u64 iversion)
{
struct osd_thread_info *oti = osd_oti_get(env);
struct osd_lookup_cache_entry *entry;
struct osd_lookup_cache *olc;
if (unlikely(oti->oti_lookup_cache == NULL)) {
OBD_ALLOC_PTR(oti->oti_lookup_cache);
if (oti->oti_lookup_cache == NULL)
return;
}
olc = oti->oti_lookup_cache;
if (unlikely(atomic_read(&osd_mount_seq) != olc->olc_mount_seq)) {
memset(olc, 0, sizeof(*olc));
olc->olc_mount_seq = atomic_read(&osd_mount_seq);
}
entry = &olc->olc_entry[olc->olc_cur];
/* invaliate cache slot if needed */
if (entry->lce_obj.lco_osd)
memset(&entry->lce_obj, 0, sizeof(entry->lce_obj));
/* XXX: some kind of LRU */
entry->lce_obj.lco_osd = osd_obj2dev(obj);
entry->lce_obj.lco_ino = obj->oo_inode->i_ino;
entry->lce_obj.lco_gen = obj->oo_inode->i_generation;
entry->lce_obj.lco_version = iversion;
LASSERT(ln->ln_namelen <= LDISKFS_NAME_LEN + 1);
entry->lce_namelen = ln->ln_namelen;
memcpy(entry->lce_name, ln->ln_name, ln->ln_namelen);
memcpy(&entry->lce_fid, rec, sizeof(entry->lce_fid));
entry->lce_rc = result;
if (++olc->olc_cur == OSD_LOOKUP_CACHE_MAX)
olc->olc_cur = 0;
}
/**
* Index lookup function for interoperability mode (b11826).
*
* \param key, key i.e. file name to be searched
*
* \retval +ve, on success
* \retval -ve, on error
*/
static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
struct dt_rec *rec, const struct dt_key *key)
{
struct osd_object *obj = osd_dt_obj(dt);
struct lu_name ln;
int rc, result;
u64 iversion;
ENTRY;
LASSERT(S_ISDIR(obj->oo_inode->i_mode));
LINVRNT(osd_invariant(obj));
rc = obj_name2lu_name(obj, (char *)key, strlen((char *)key), &ln);
if (rc)
RETURN(rc);
/*
* grab version before actual lookup, so that we recognize potential
* insert between osd_ea_lookup_rec() and osd_olc_save()
*/
iversion = inode_peek_iversion(obj->oo_inode);
if (osd_olc_lookup(env, obj, iversion, rec, &ln, &result))
GOTO(out, rc = result);
rc = osd_ea_lookup_rec(env, obj, rec, &ln);
if (rc == 0)
rc = 1;
osd_olc_save(env, obj, rec, &ln, rc, iversion);
out:
if (ln.ln_name != (char *)key)
kfree(ln.ln_name);
RETURN(rc);
}
/**
* Index and Iterator operations for interoperability
* mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
*/
static const struct dt_index_operations osd_index_ea_ops = {
.dio_lookup = osd_index_ea_lookup,
.dio_declare_insert = osd_index_declare_ea_insert,
.dio_insert = osd_index_ea_insert,
.dio_declare_delete = osd_index_declare_ea_delete,
.dio_delete = osd_index_ea_delete,
.dio_it = {
.init = osd_it_ea_init,
.fini = osd_it_ea_fini,
.get = osd_it_ea_get,
.put = osd_it_ea_put,
.next = osd_it_ea_next,
.key = osd_it_ea_key,
.key_size = osd_it_ea_key_size,
.rec = osd_it_ea_rec,
.rec_size = osd_it_ea_rec_size,
.store = osd_it_ea_store,
.load = osd_it_ea_load
}
};
static void *osd_key_init(const struct lu_context *ctx,
struct lu_context_key *key)
{
struct osd_thread_info *info;
OBD_ALLOC_PTR(info);
if (info == NULL)
return ERR_PTR(-ENOMEM);
OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
if (info->oti_it_ea_buf == NULL)
goto out_free_info;
info->oti_env = container_of(ctx, struct lu_env, le_ctx);
info->oti_hlock = ldiskfs_htree_lock_alloc();
if (info->oti_hlock == NULL)
goto out_free_ea;
return info;
out_free_ea:
OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
out_free_info:
OBD_FREE_PTR(info);
return ERR_PTR(-ENOMEM);
}
static void osd_key_fini(const struct lu_context *ctx,
struct lu_context_key *key, void *data)
{
struct osd_thread_info *info = data;
struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
struct osd_idmap_cache *idc = info->oti_ins_cache;
if (info->oti_dio_folios) {
int i;
for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
struct folio *folio = info->oti_dio_folios[i];
if (!IS_ERR_OR_NULL(folio)) {
LASSERT(folio_test_private_2(folio));
LASSERT(folio_test_locked(folio));
folio_clear_private_2(folio);
folio_unlock(folio);
folio_put(folio);
}
}
OBD_FREE_PTR_ARRAY_LARGE(info->oti_dio_folios,
PTLRPC_MAX_BRW_PAGES);
}
if (info->oti_inode != NULL)
OBD_FREE_PTR(lli);
if (info->oti_hlock != NULL)
ldiskfs_htree_lock_free(info->oti_hlock);
OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
lu_buf_free(&info->oti_iobuf.dr_bl_buf);
lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
lu_buf_free(&info->oti_big_buf);
if (idc != NULL) {
LASSERT(info->oti_ins_cache_size > 0);
OBD_FREE_PTR_ARRAY_LARGE(idc, info->oti_ins_cache_size);
info->oti_ins_cache = NULL;
info->oti_ins_cache_size = 0;
}
OBD_FREE_PTR(info->oti_lookup_cache);
OBD_FREE_PTR(info);
}
static void osd_key_exit(const struct lu_context *ctx,
struct lu_context_key *key, void *data)
{
struct osd_thread_info *info = data;
struct osd_lookup_cache *olc = info->oti_lookup_cache;
if (olc)
memset(olc, 0, sizeof(*olc));
LASSERT(info->oti_txns == 0);
LASSERTF(info->oti_dio_pages_used == 0, "%d\n",
info->oti_dio_pages_used);
}
/* type constructor/destructor: osd_type_init, osd_type_fini */
LU_TYPE_INIT_FINI(osd, &osd_key);
struct lu_context_key osd_key = {
.lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
.lct_init = osd_key_init,
.lct_fini = osd_key_fini,
.lct_exit = osd_key_exit
};
static int osd_device_init(const struct lu_env *env, struct lu_device *d,
const char *name, struct lu_device *next)
{
return 0;
}
static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
{
ENTRY;
/* shutdown quota slave instance associated with the device */
if (o->od_quota_slave_md != NULL) {
struct qsd_instance *qsd = o->od_quota_slave_md;
o->od_quota_slave_md = NULL;
qsd_fini(env, qsd);
}
if (o->od_quota_slave_dt != NULL) {
struct qsd_instance *qsd = o->od_quota_slave_dt;
o->od_quota_slave_dt = NULL;
qsd_fini(env, qsd);
}
seq_target_fini(env, &o->od_dt_dev);
osd_scrub_cleanup(env, o);
RETURN(0);
}
static void osd_umount(const struct lu_env *env, struct osd_device *o)
{
ENTRY;
atomic_inc(&osd_mount_seq);
if (o->od_mnt != NULL) {
shrink_dcache_sb(osd_sb(o));
osd_sync(env, &o->od_dt_dev);
io_wait_event(o->od_commit_cb_done,
!atomic_read(&o->od_commit_cb_in_flight));
mntput(o->od_mnt);
o->od_mnt = NULL;
}
EXIT;
}
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 53, 0)
# ifndef LDISKFS_HAS_INCOMPAT_FEATURE
/* Newer kernels provide the ldiskfs_set_feature_largedir() wrapper already,
* which calls ldiskfs_update_dynamic_rev() to update ancient filesystems.
* All ldiskfs filesystems are already v2, so it is a no-op and unnecessary.
* This avoids maintaining patches to export this otherwise-useless function.
*/
void ldiskfs_update_dynamic_rev(struct super_block *sb)
{
/* do nothing */
}
# endif
#endif
static int osd_mount(const struct lu_env *env,
struct osd_device *o, struct lustre_cfg *cfg)
{
const char *name = lustre_cfg_string(cfg, 0);
const char *dev = lustre_cfg_string(cfg, 1);
const char *opts;
unsigned long s_flags = 0, lmd_flags = 0;
struct file_system_type *type;
char *options = NULL;
const char *str;
struct osd_thread_info *info = osd_oti_get(env);
struct lu_fid *fid = &info->oti_fid;
struct inode *inode;
int rc = 0, force_over_1024tb = 0;
ENTRY;
if (o->od_mnt != NULL)
RETURN(0);
if (strlen(dev) >= sizeof(o->od_mntdev))
RETURN(-E2BIG);
strcpy(o->od_mntdev, dev);
str = lustre_cfg_buf(cfg, 2);
sscanf(str, "%lu:%lu", &s_flags, &lmd_flags);
opts = lustre_cfg_string(cfg, 3);
#ifdef __BIG_ENDIAN
if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
CERROR("%s: device %s extents feature is not guaranteed to "
"work on big-endian systems. Use \"bigendian_extents\" "
"mount option to override.\n", name, dev);
RETURN(-EINVAL);
}
#endif
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
CWARN("force_over_128tb option is deprecated. Filesystems smaller than 1024TB can be created without any force option. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
}
#endif
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
CWARN("force_over_256tb option is deprecated. Filesystems smaller than 1024TB can be created without any force options. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
}
#endif
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 53, 0)
if (opts != NULL && strstr(opts, "force_over_512tb") != NULL) {
CWARN("force_over_512tb option is deprecated. Filesystems smaller than 1024TB can be created without any force options. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
}
#endif
if (opts != NULL && strstr(opts, "force_over_1024tb") != NULL)
force_over_1024tb = 1;
OBD_ALLOC_GFP(options, PAGE_SIZE, GFP_KERNEL);
if (!options)
GOTO(out, rc = -ENOMEM);
*options = '\0';
if (opts != NULL) {
/* strip out the options for back compatiblity */
static const char * const sout[] = {
"mballoc",
"iopen",
"noiopen",
"iopen_nopriv",
"extents",
"noextents",
/* strip out option we processed in osd */
"bigendian_extents",
"force_over_128tb",
"force_over_256tb",
"force_over_512tb",
"force_over_1024tb",
"resetoi",
NULL
};
strncat(options, opts, PAGE_SIZE);
for (rc = 0, str = options; sout[rc]; ) {
char *op = strstr(str, sout[rc]);
if (op == NULL) {
rc++;
str = options;
continue;
}
if (op == options || *(op - 1) == ',') {
str = op + strlen(sout[rc]);
if (*str == ',' || *str == '\0') {
*str == ',' ? str++ : str;
memmove(op, str, strlen(str) + 1);
}
}
for (str = op; *str != ',' && *str != '\0'; str++)
;
}
} else {
strncat(options, "user_xattr,acl", PAGE_SIZE);
}
/* Glom up mount options */
if (*options != '\0')
strncat(options, ",", PAGE_SIZE);
strncat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
type = get_fs_type("ldiskfs");
if (!type) {
CERROR("%s: cannot find ldiskfs module\n", name);
GOTO(out, rc = -ENODEV);
}
s_flags |= SB_KERNMOUNT;
o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
module_put(type->owner);
if (IS_ERR(o->od_mnt)) {
rc = PTR_ERR(o->od_mnt);
o->od_mnt = NULL;
CERROR("%s: can't mount %s: %d\n", name, dev, rc);
GOTO(out, rc);
}
if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
osd_sb(o)->s_blocksize_bits > 1024ULL << 40 &&
force_over_1024tb == 0) {
CERROR("%s: device %s LDISKFS has not been tested on filesystems larger than 1024TB and may cause data corruption. Use 'force_over_1024tb' mount option to override.\n",
name, dev);
GOTO(out_mnt, rc = -EINVAL);
}
if (test_bit(LMD_FLG_DEV_RDONLY, &lmd_flags)) {
LCONSOLE_WARN("%s: not support dev_rdonly on this device\n",
name);
GOTO(out_mnt, rc = -EOPNOTSUPP);
}
if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
CERROR("%s: device %s is mounted w/o journal\n", name, dev);
GOTO(out_mnt, rc = -EINVAL);
}
if (ldiskfs_has_feature_fast_commit(o->od_mnt->mnt_sb)) {
CERROR("%s: device %s is mounted with fast_commit that breaks recovery\n",
name, dev);
GOTO(out_mnt, rc = -EOPNOTSUPP);
}
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 53, 0)
#ifdef LDISKFS_MOUNT_DIRDATA
if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
CWARN("%s: device %s was upgraded from Lustre-1.x without "
"enabling the dirdata feature. If you do not want to "
"downgrade to Lustre-1.x again, you can enable it via "
"'tune2fs -O dirdata device'\n", name, dev);
#endif
/* enable large_dir on MDTs to avoid REMOTE_PARENT_DIR overflow,
* and on very large OSTs to avoid object directory overflow */
if (unlikely(!ldiskfs_has_feature_largedir(o->od_mnt->mnt_sb) &&
!strstr(name, "MGS"))) {
ldiskfs_set_feature_largedir(o->od_mnt->mnt_sb);
LCONSOLE_INFO("%s: enabled 'large_dir' feature on device %s\n",
name, dev);
}
#endif
inode = osd_sb(o)->s_root->d_inode;
lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
if (!o->od_dt_dev.dd_rdonly) {
rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
if (rc != 0) {
CERROR("%s: failed to set lma on %s root inode\n",
name, dev);
GOTO(out_mnt, rc);
}
}
if (test_bit(LMD_FLG_NOSCRUB, &lmd_flags))
o->od_scrub.os_scrub.os_auto_scrub_interval = AS_NEVER;
if (!blk_queue_rot(bdev_get_queue(osd_sb(o)->s_bdev))) {
/* do not use pagecache with flash-backed storage */
o->od_writethrough_cache = 0;
o->od_read_cache = 0;
}
GOTO(out, rc = 0);
out_mnt:
mntput(o->od_mnt);
o->od_mnt = NULL;
out:
OBD_FREE(options, PAGE_SIZE);
return rc;
}
static struct lu_device *osd_device_fini(const struct lu_env *env,
struct lu_device *d)
{
struct osd_device *o = osd_dev(d);
ENTRY;
osd_index_backup(env, o, false);
osd_shutdown(env, o);
osd_procfs_fini(o);
if (o->od_oi_table != NULL)
osd_oi_fini(osd_oti_get(env), o);
if (o->od_extent_bytes_percpu)
free_percpu(o->od_extent_bytes_percpu);
osd_obj_map_fini(o);
if (o->od_integrityd_wq)
destroy_workqueue(o->od_integrityd_wq);
osd_umount(env, o);
RETURN(NULL);
}
static int osd_device_init0(const struct lu_env *env,
struct osd_device *o,
struct lustre_cfg *cfg)
{
struct lu_device *l = osd2lu_dev(o);
struct osd_thread_info *info;
int cplen = 0;
char *opts = NULL;
bool restored = false;
int rc;
/* if the module was re-loaded, env can loose its keys */
rc = lu_env_refill((struct lu_env *)env);
if (rc)
GOTO(out, rc);
info = osd_oti_get(env);
LASSERT(info);
l->ld_ops = &osd_lu_ops;
o->od_dt_dev.dd_ops = &osd_dt_ops;
spin_lock_init(&o->od_osfs_lock);
mutex_init(&o->od_otable_mutex);
INIT_LIST_HEAD(&o->od_orphan_list);
INIT_LIST_HEAD(&o->od_index_backup_list);
INIT_LIST_HEAD(&o->od_index_restore_list);
spin_lock_init(&o->od_lock);
o->od_index_backup_policy = LIBP_NONE;
init_waitqueue_head(&o->od_commit_cb_done);
o->od_read_cache = 1;
o->od_writethrough_cache = 1;
o->od_enable_projid_xattr = 0;
o->od_readcache_max_filesize = (totalram_pages() << PAGE_SHIFT) / 64;
o->od_readcache_max_iosize = OSD_READCACHE_MAX_IO_MB << 20;
o->od_writethrough_max_iosize = OSD_WRITECACHE_MAX_IO_MB << 20;
o->od_scrub.os_scrub.os_auto_scrub_interval = AS_DEFAULT;
/* default fallocate to unwritten extents: LU-14326/LU-14333 */
o->od_fallocate_zero_blocks = 0;
cplen = strscpy(o->od_svname, lustre_cfg_string(cfg, 4),
sizeof(o->od_svname));
if (cplen < 0)
GOTO(out, rc = cplen);
o->od_index_backup_stop = 0;
o->od_index = -1; /* -1 means index is invalid */
rc = server_name2index(o->od_svname, &o->od_index, NULL);
if (rc == LDD_F_SV_TYPE_OST)
o->od_is_ost = 1;
o->od_full_scrub_ratio = OFSR_DEFAULT;
o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
rc = osd_mount(env, o, cfg);
if (rc != 0)
GOTO(out, rc);
/* Can only check block device after mount */
o->od_nonrotational =
!blk_queue_rot(bdev_get_queue(osd_sb(o)->s_bdev));
osd_init_t10_type(o);
if (o->od_t10_type != OSD_T10_TYPE_UNKNOWN) {
/*
* integrityd won't block much but may burn a lot of CPU cycles.
* Make it highpri CPU intensive wq with max concurrency of 1.
*/
o->od_integrityd_wq = alloc_workqueue("%s-integrityd",
WQ_MEM_RECLAIM | WQ_HIGHPRI |
WQ_CPU_INTENSIVE, 1,
osd_name(o));
if (!o->od_integrityd_wq)
GOTO(out_mnt, rc = -ENOMEM);
}
rc = osd_obj_map_init(env, o);
if (rc != 0)
GOTO(out_wq, rc);
rc = lu_site_init(&o->od_site, l);
if (rc != 0)
GOTO(out_compat, rc);
o->od_site.ls_bottom_dev = l;
rc = lu_site_init_finish(&o->od_site);
if (rc != 0)
GOTO(out_site, rc);
opts = lustre_cfg_string(cfg, 3);
if (opts && strstr(opts, "resetoi"))
restored = true;
INIT_LIST_HEAD(&o->od_ios_list);
rc = lprocfs_init_brw_stats(&o->od_brw_stats);
if (rc)
GOTO(out_brw_stats, rc);
o->od_brw_stats.bs_devname = o->od_svname;
/* setup scrub, including OI files initialization */
o->od_in_init = 1;
rc = osd_scrub_setup(env, o, restored);
o->od_in_init = 0;
if (rc < 0)
GOTO(out_brw_stats, rc);
rc = osd_procfs_init(o, o->od_svname);
if (rc != 0) {
CERROR("%s: can't initialize procfs: rc = %d\n",
o->od_svname, rc);
GOTO(out_scrub, rc);
}
LASSERT(l->ld_site->ls_linkage.next != NULL);
LASSERT(l->ld_site->ls_linkage.prev != NULL);
/* initialize quota slave instance */
/* currently it's no need to prepare qsd_instance_md for OST */
if (!o->od_is_ost) {
o->od_quota_slave_md = qsd_init(env, o->od_svname,
&o->od_dt_dev, o->od_proc_entry,
true, true);
if (IS_ERR(o->od_quota_slave_md)) {
rc = PTR_ERR(o->od_quota_slave_md);
o->od_quota_slave_md = NULL;
GOTO(out_procfs, rc);
}
}
o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
o->od_proc_entry, false, true);
if (IS_ERR(o->od_quota_slave_dt)) {
if (o->od_quota_slave_md != NULL) {
qsd_fini(env, o->od_quota_slave_md);
o->od_quota_slave_md = NULL;
}
rc = PTR_ERR(o->od_quota_slave_dt);
o->od_quota_slave_dt = NULL;
GOTO(out_procfs, rc);
}
o->od_extent_bytes_percpu = alloc_percpu(unsigned int);
if (!o->od_extent_bytes_percpu) {
rc = -ENOMEM;
GOTO(out_procfs, rc);
}
RETURN(0);
out_procfs:
osd_procfs_fini(o);
out_scrub:
osd_scrub_cleanup(env, o);
out_brw_stats:
lprocfs_fini_brw_stats(&o->od_brw_stats);
out_site:
lu_site_fini(&o->od_site);
out_compat:
osd_obj_map_fini(o);
out_wq:
if (o->od_integrityd_wq)
destroy_workqueue(o->od_integrityd_wq);
out_mnt:
osd_umount(env, o);
out:
return rc;
}
static struct lu_device *osd_device_alloc(const struct lu_env *env,
struct lu_device_type *t,
struct lustre_cfg *cfg)
{
struct osd_device *o;
int rc;
OBD_ALLOC_PTR(o);
if (o == NULL)
return ERR_PTR(-ENOMEM);
rc = dt_device_init(&o->od_dt_dev, t);
if (rc == 0) {
/*
* Because the ctx might be revived in dt_device_init,
* refill the env here
*/
lu_env_refill((struct lu_env *)env);
rc = osd_device_init0(env, o, cfg);
if (rc)
dt_device_fini(&o->od_dt_dev);
}
if (unlikely(rc != 0))
OBD_FREE_PTR(o);
return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
}
static struct lu_device *osd_device_free(const struct lu_env *env,
struct lu_device *d)
{
struct osd_device *o = osd_dev(d);
ENTRY;
/* XXX: make osd top device in order to release reference */
d->ld_site->ls_top_dev = d;
lu_site_purge(env, d->ld_site, -1);
lu_site_print(env, d->ld_site, &d->ld_site->ls_obj_hash.nelems,
D_ERROR, lu_cdebug_printer);
lu_site_fini(&o->od_site);
dt_device_fini(&o->od_dt_dev);
OBD_FREE_PTR(o);
RETURN(NULL);
}
static int osd_process_config(const struct lu_env *env,
struct lu_device *d, struct lustre_cfg *cfg)
{
struct osd_device *o = osd_dev(d);
ssize_t count;
int rc;
ENTRY;
switch (cfg->lcfg_command) {
case LCFG_SETUP:
rc = osd_mount(env, o, cfg);
break;
case LCFG_CLEANUP:
/*
* For the case LCFG_PRE_CLEANUP is not called in advance,
* that may happend if hit failure during mount process.
*/
osd_index_backup(env, o, false);
lu_dev_del_linkage(d->ld_site, d);
rc = osd_shutdown(env, o);
break;
case LCFG_PARAM:
LASSERT(&o->od_dt_dev);
count = class_modify_config(cfg, PARAM_OSD,
&o->od_dt_dev.dd_kobj);
if (count < 0)
count = class_modify_config(cfg, PARAM_OST,
&o->od_dt_dev.dd_kobj);
rc = count > 0 ? 0 : count;
break;
case LCFG_PRE_CLEANUP:
osd_scrub_stop(o);
osd_index_backup(env, o,
o->od_index_backup_policy != LIBP_NONE);
rc = 0;
break;
default:
rc = -ENOSYS;
}
RETURN(rc);
}
static int osd_recovery_complete(const struct lu_env *env,
struct lu_device *d)
{
struct osd_device *osd = osd_dev(d);
int rc = 0;
ENTRY;
if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
RETURN(0);
/*
* start qsd instance on recovery completion, this notifies the quota
* slave code that we are about to process new requests now
*/
rc = qsd_start(env, osd->od_quota_slave_dt);
if (rc == 0 && osd->od_quota_slave_md != NULL)
rc = qsd_start(env, osd->od_quota_slave_md);
RETURN(rc);
}
/*
* we use exports to track all osd users
*/
static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
struct obd_device *obd, struct obd_uuid *cluuid,
struct obd_connect_data *data, void *localdata)
{
struct osd_device *osd = osd_dev(obd->obd_lu_dev);
struct lustre_handle conn;
int rc;
ENTRY;
CDEBUG(D_CONFIG, "connect #%d\n", atomic_read(&osd->od_connects));
rc = class_connect(&conn, obd, cluuid);
if (rc)
RETURN(rc);
*exp = class_conn2export(&conn);
atomic_inc(&osd->od_connects);
RETURN(0);
}
/*
* once last export (we don't count self-export) disappeared
* osd can be released
*/
static int osd_obd_disconnect(struct obd_export *exp)
{
struct obd_device *obd = exp->exp_obd;
struct osd_device *osd = osd_dev(obd->obd_lu_dev);
int rc, release = 0;
ENTRY;
/* Only disconnect the underlying layers on the final disconnect. */
release = atomic_dec_and_test(&osd->od_connects);
rc = class_disconnect(exp); /* bz 9811 */
if (rc == 0 && release)
class_manual_cleanup(obd);
RETURN(rc);
}
static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
struct lu_device *dev)
{
struct osd_device *osd = osd_dev(dev);
struct lr_server_data *lsd =
&osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
int result = 0;
ENTRY;
if (osd->od_quota_slave_md != NULL) {
/* set up quota slave objects for inode */
result = qsd_prepare(env, osd->od_quota_slave_md);
if (result != 0)
RETURN(result);
}
if (osd->od_quota_slave_dt != NULL) {
/* set up quota slave objects for block */
result = qsd_prepare(env, osd->od_quota_slave_dt);
if (result != 0)
RETURN(result);
}
if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
osd->od_index_in_idif = 1;
} else {
osd->od_index_in_idif = 0;
result = osd_register_proc_index_in_idif(osd);
if (result != 0)
RETURN(result);
}
#else
osd->od_index_in_idif = 1;
#endif
}
result = seq_target_init(env, &osd->od_dt_dev,
osd->od_svname,
osd->od_is_ost);
RETURN(result);
}
static const struct lu_object_operations osd_lu_obj_ops = {
.loo_object_init = osd_object_init,
.loo_object_delete = osd_object_delete,
.loo_object_release = osd_object_release,
.loo_object_free = osd_object_free,
.loo_object_print = osd_object_print,
.loo_object_invariant = osd_object_invariant
};
const struct lu_device_operations osd_lu_ops = {
.ldo_object_alloc = osd_object_alloc,
.ldo_process_config = osd_process_config,
.ldo_recovery_complete = osd_recovery_complete,
.ldo_prepare = osd_prepare,
.ldo_fid_alloc = fid_alloc_generic,
};
static const struct lu_device_type_operations osd_device_type_ops = {
.ldto_init = osd_type_init,
.ldto_fini = osd_type_fini,
.ldto_start = osd_type_start,
.ldto_stop = osd_type_stop,
.ldto_device_alloc = osd_device_alloc,
.ldto_device_free = osd_device_free,
.ldto_device_init = osd_device_init,
.ldto_device_fini = osd_device_fini
};
static struct lu_device_type osd_device_type = {
.ldt_tags = LU_DEVICE_DT,
.ldt_name = LUSTRE_OSD_LDISKFS_NAME,
.ldt_ops = &osd_device_type_ops,
.ldt_ctx_tags = LCT_LOCAL,
};
static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
{
struct osd_device *osd = osd_dev(obd->obd_lu_dev);
struct super_block *sb = osd_sb(osd);
return (!sb || sb->s_flags & SB_RDONLY);
}
static int osd_get_info(const struct lu_env *env, struct obd_export *exp,
__u32 keylen, void *key, __u32 *vallen, void *val)
{
struct osd_device *osd;
int rc = -EINVAL;
ENTRY;
if (!exp->exp_obd) {
CDEBUG(D_IOCTL, "invalid client export %p\n", exp);
RETURN(-EINVAL);
}
osd = osd_dev(exp->exp_obd->obd_lu_dev);
if (KEY_IS(KEY_FID2IDX)) {
struct lu_seq_range range;
struct lu_fid fid;
if (osd_seq_site(osd)->ss_server_fld == NULL)
RETURN(-EINPROGRESS);
if (*vallen < sizeof(struct lu_fid))
RETURN(-EINVAL);
memcpy(&fid, val, sizeof(struct lu_fid));
fld_range_set_any(&range);
rc = osd_fld_lookup(env, osd, fid_seq(&fid), &range);
if (rc == 0) {
memcpy(val, &range, sizeof(range));
*vallen = sizeof(range);
}
}
RETURN(rc);
}
/*
* lprocfs legacy support.
*/
static const struct obd_ops osd_obd_device_ops = {
.o_owner = THIS_MODULE,
.o_connect = osd_obd_connect,
.o_disconnect = osd_obd_disconnect,
.o_health_check = osd_health_check,
.o_get_info = osd_get_info,
};
static ssize_t track_declares_assert_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
}
static ssize_t track_declares_assert_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
bool track_declares_assert;
int rc;
rc = kstrtobool(buffer, &track_declares_assert);
if (rc)
return rc;
ldiskfs_track_declares_assert = track_declares_assert;
return count;
}
LUSTRE_RW_ATTR(track_declares_assert);
static int __init osd_init(void)
{
struct kobject *kobj;
int rc;
BUILD_BUG_ON(BH_DXLock >=
sizeof(((struct buffer_head *)0)->b_state) * 8);
#if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
/* please, try to keep osd_thread_info smaller than a page */
BUILD_BUG_ON(sizeof(struct osd_thread_info) > PAGE_SIZE);
#endif
rc = libcfs_setup();
if (rc)
return rc;
osd_oi_mod_init();
rc = lu_kmem_init(ldiskfs_caches);
if (rc)
return rc;
rc = class_register_type(&osd_obd_device_ops, NULL, true,
LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
if (rc) {
lu_kmem_fini(ldiskfs_caches);
return rc;
}
kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
if (kobj) {
rc = sysfs_create_file(kobj,
&lustre_attr_track_declares_assert.attr);
if (rc) {
CWARN("%s: track_declares_assert sysfs registration failed: rc = %d\n",
"osd-ldiskfs", rc);
rc = 0;
}
kobject_put(kobj);
}
return rc;
}
static void __exit osd_exit(void)
{
struct kobject *kobj;
kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
if (kobj) {
sysfs_remove_file(kobj,
&lustre_attr_track_declares_assert.attr);
kobject_put(kobj);
}
class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
lu_kmem_fini(ldiskfs_caches);
}
MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
late_initcall_sync(osd_init);
module_exit(osd_exit);
