Viewing: osd_object.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Author: Alex Zhuravlev <bzzz@whamcloud.com>
* Author: Mike Pershin <tappro@whamcloud.com>
* Author: Johann Lombardi <johann@whamcloud.com>
*/
#define DEBUG_SUBSYSTEM S_OSD
#include <obd_support.h>
#include <lustre_net.h>
#include <obd.h>
#include <obd_class.h>
#include <lustre_disk.h>
#include <lustre_fid.h>
#include "osd_internal.h"
#include <sys/dnode.h>
#include <sys/dbuf.h>
#include <sys/spa.h>
#include <sys/stat.h>
#include <sys/zap.h>
#include <sys/spa_impl.h>
#include <sys/zfs_znode.h>
#include <sys/dmu_tx.h>
#include <sys/dmu_objset.h>
#include <sys/dsl_prop.h>
#include <sys/sa_impl.h>
#include <sys/txg.h>
char *osd_obj_tag = "osd_object";
static int osd_object_sync_delay_us = -1;
static const struct dt_object_operations osd_obj_ops;
static const struct lu_object_operations osd_lu_obj_ops;
static const struct dt_object_operations osd_obj_otable_it_ops;
static void
osd_object_sa_fini(struct osd_object *obj)
{
if (obj->oo_sa_hdl) {
sa_handle_destroy(obj->oo_sa_hdl);
obj->oo_sa_hdl = NULL;
}
}
static int
osd_object_sa_init(struct osd_object *obj, struct osd_device *o)
{
int rc;
LASSERT(obj->oo_sa_hdl == NULL);
LASSERT(obj->oo_dn != NULL);
rc = osd_sa_handle_get(obj);
if (rc)
return rc;
/* Cache the xattr object id, valid for the life of the object */
rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_XATTR(o), &obj->oo_xattr, 8);
if (rc == -ENOENT) {
obj->oo_xattr = ZFS_NO_OBJECT;
rc = 0;
} else if (rc) {
osd_object_sa_fini(obj);
}
return rc;
}
/*
* Add object to list of dirty objects in tx handle.
*/
void osd_object_sa_dirty_add(struct osd_object *obj, struct osd_thandle *oh)
{
if (!list_empty(&obj->oo_sa_linkage))
return;
write_lock(&obj->oo_attr_lock);
if (likely(list_empty(&obj->oo_sa_linkage)))
list_add(&obj->oo_sa_linkage, &oh->ot_sa_list);
write_unlock(&obj->oo_attr_lock);
}
/*
* Release spill block dbuf hold for all dirty SAs.
*/
void osd_object_sa_dirty_rele(const struct lu_env *env, struct osd_thandle *oh)
{
struct osd_object *obj;
while (!list_empty(&oh->ot_sa_list)) {
obj = list_first_entry(&oh->ot_sa_list,
struct osd_object, oo_sa_linkage);
write_lock(&obj->oo_attr_lock);
list_del_init(&obj->oo_sa_linkage);
write_unlock(&obj->oo_attr_lock);
if (obj->oo_late_xattr && obj->oo_destroyed == 0) {
/*
* take oo_guard to protect oo_sa_xattr buffer
* from concurrent update by osd_xattr_set()
*/
LASSERT(oh->ot_assigned != 0);
down_write(&obj->oo_guard);
if (obj->oo_destroyed == 0) {
if (obj->oo_late_attr_set)
__osd_sa_attr_init(env, obj, oh);
else if (obj->oo_late_xattr)
__osd_sa_xattr_update(env, obj, oh);
}
up_write(&obj->oo_guard);
}
if (obj->oo_sa_hdl)
sa_spill_rele(obj->oo_sa_hdl);
}
}
/*
* Update the SA and add the object to the dirty list.
*/
int osd_object_sa_update(struct osd_object *obj, sa_attr_type_t type,
void *buf, uint32_t buflen, struct osd_thandle *oh)
{
int rc;
LASSERT(obj->oo_sa_hdl != NULL);
LASSERT(oh->ot_tx != NULL);
rc = -sa_update(obj->oo_sa_hdl, type, buf, buflen, oh->ot_tx);
osd_object_sa_dirty_add(obj, oh);
return rc;
}
/*
* Bulk update the SA and add the object to the dirty list.
*/
static int
osd_object_sa_bulk_update(struct osd_object *obj, sa_bulk_attr_t *attrs,
int count, struct osd_thandle *oh)
{
int rc;
LASSERT(obj->oo_sa_hdl != NULL);
LASSERT(oh->ot_tx != NULL);
rc = -sa_bulk_update(obj->oo_sa_hdl, attrs, count, oh->ot_tx);
osd_object_sa_dirty_add(obj, oh);
return rc;
}
/*
* Retrieve the attributes of a DMU object
*/
static int __osd_object_attr_get(const struct lu_env *env, struct osd_device *o,
struct osd_object *obj, struct lu_attr *la)
{
struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
struct lustre_mdt_attrs *lma;
struct lu_buf buf;
int cnt = 0;
int rc;
ENTRY;
LASSERT(obj->oo_dn != NULL);
la->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_BTIME | LA_MODE |
LA_TYPE | LA_SIZE | LA_UID | LA_GID | LA_FLAGS |
LA_NLINK;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(o), NULL, osa->atime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(o), NULL, osa->mtime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(o), NULL, osa->ctime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(o), NULL, osa->btime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(o), NULL, &osa->mode, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(o), NULL, &osa->size, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(o), NULL, &osa->nlink, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(o), NULL, &osa->uid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(o), NULL, &osa->gid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(o), NULL, &osa->flags, 8);
LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
rc = -sa_bulk_lookup(obj->oo_sa_hdl, bulk, cnt);
if (rc)
GOTO(out_sa, rc);
#ifdef ZFS_PROJINHERIT
if (o->od_projectused_dn && osa->flags & ZFS_PROJID) {
rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_PROJID(o),
&osa->projid, 8);
if (rc)
GOTO(out_sa, rc);
la->la_projid = osa->projid;
la->la_valid |= LA_PROJID;
obj->oo_with_projid = 1;
} else {
la->la_projid = ZFS_DEFAULT_PROJID;
la->la_valid &= ~LA_PROJID;
}
#else
la->la_projid = 0;
la->la_valid &= ~LA_PROJID;
#endif
la->la_atime = osa->atime[0];
la->la_mtime = osa->mtime[0];
la->la_ctime = osa->ctime[0];
la->la_btime = osa->btime[0];
la->la_mode = osa->mode;
la->la_uid = osa->uid;
la->la_gid = osa->gid;
la->la_nlink = osa->nlink;
la->la_flags = attrs_zfs2fs(osa->flags);
la->la_size = osa->size;
/* Try to get extra flags from LMA */
lma = (struct lustre_mdt_attrs *)osd_oti_get(env)->oti_buf;
buf.lb_buf = lma;
buf.lb_len = sizeof(osd_oti_get(env)->oti_buf);
down_read(&obj->oo_guard);
rc = osd_xattr_get_lma(env, obj, &buf);
if (!rc) {
lma->lma_incompat = le32_to_cpu(lma->lma_incompat);
obj->oo_lma_flags =
lma_to_lustre_flags(lma->lma_incompat);
} else if (rc == -ENODATA ||
!(S_ISDIR(la->la_mode) &&
dt_object_exists(&obj->oo_dt))) {
rc = 0;
}
up_read(&obj->oo_guard);
if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode)) {
rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_RDEV(o), &osa->rdev, 8);
if (rc)
GOTO(out_sa, rc);
la->la_rdev = osa->rdev;
la->la_valid |= LA_RDEV;
}
out_sa:
RETURN(rc);
}
int __osd_obj2dnode(objset_t *os, uint64_t oid, dnode_t **dnp)
{
dmu_buf_t *db;
dmu_buf_impl_t *dbi;
int rc;
rc = -dmu_bonus_hold(os, oid, osd_obj_tag, &db);
if (rc)
return rc;
dbi = (dmu_buf_impl_t *)db;
DB_DNODE_ENTER(dbi);
*dnp = DB_DNODE(dbi);
DB_DNODE_EXIT(dbi);
LASSERT(*dnp != NULL);
return 0;
}
/*
* Concurrency: no concurrent access is possible that early in object
* life-cycle.
*/
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_SLAB_ALLOC_PTR_GFP(mo, osd_object_kmem, GFP_NOFS);
if (mo != NULL) {
struct lu_object *l;
struct lu_object_header *h;
struct osd_device *o = osd_dev(d);
int i;
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_LIST_HEAD(&mo->oo_sa_linkage);
INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
init_rwsem(&mo->oo_dt.dd_sem);
init_rwsem(&mo->oo_guard);
rwlock_init(&mo->oo_attr_lock);
mo->oo_destroy = OSD_DESTROY_NONE;
for (i = 0; i < OSD_MAX_DBUFS; i++)
mo->oo_dbs[i] = NULL;
return l;
} else {
return NULL;
}
}
static void osd_obj_set_blksize(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);
dmu_tx_t *tx;
dnode_t *dn = obj->oo_dn;
uint32_t blksz;
int rc = 0;
ENTRY;
LASSERT(!osd_oti_get(env)->oti_in_trans);
tx = dmu_tx_create(osd->od_os);
if (!tx) {
CERROR("%s: fail to create tx to set blksize for "DFID"\n",
osd->od_svname, PFID(fid));
RETURN_EXIT;
}
dmu_tx_hold_bonus(tx, dn->dn_object);
rc = -dmu_tx_assign(tx, DMU_TX_WAIT);
if (rc) {
dmu_tx_abort(tx);
CERROR("%s: fail to assign tx to set blksize for "DFID": rc = %d\n",
osd->od_svname, PFID(fid), rc);
RETURN_EXIT;
}
down_write(&obj->oo_guard);
if (unlikely((1 << dn->dn_datablkshift) >= PAGE_SIZE))
GOTO(out, rc = 1);
blksz = dn->dn_datablksz;
if (!is_power_of_2(blksz))
blksz = size_roundup_power2(blksz);
if (blksz > osd->od_max_blksz)
blksz = osd->od_max_blksz;
else if (blksz < PAGE_SIZE)
blksz = PAGE_SIZE;
rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object, blksz, 0, tx);
GOTO(out, rc);
out:
up_write(&obj->oo_guard);
if (rc) {
dmu_tx_abort(tx);
if (unlikely(obj->oo_dn->dn_maxblkid > 0))
rc = 1;
if (rc < 0)
CERROR("%s: fail to set blksize for "DFID": rc = %d\n",
osd->od_svname, PFID(fid), rc);
} else {
dmu_tx_commit(tx);
CDEBUG(D_INODE, "%s: set blksize as %u for "DFID"\n",
osd->od_svname, blksz, PFID(fid));
}
}
/*
* Concurrency: shouldn't matter.
*/
static int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
{
struct osd_device *osd = osd_obj2dev(obj);
const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
int rc = 0;
ENTRY;
LASSERT(obj->oo_dn);
rc = osd_object_sa_init(obj, osd);
if (rc)
RETURN(rc);
/* cache attrs in object */
rc = __osd_object_attr_get(env, osd, obj, &obj->oo_attr);
if (rc)
RETURN(rc);
if (likely(!fid_is_acct(fid))) {
/* no body operations for accounting objects */
obj->oo_dt.do_body_ops = &osd_body_ops;
if (S_ISREG(obj->oo_attr.la_mode) &&
obj->oo_dn->dn_maxblkid == 0 &&
(1 << obj->oo_dn->dn_datablkshift) < PAGE_SIZE &&
(fid_is_idif(fid) || fid_is_norm(fid) ||
fid_is_echo(fid)) &&
osd->od_is_ost && !osd->od_dt_dev.dd_rdonly)
osd_obj_set_blksize(env, osd, obj);
}
/*
* initialize object before marking it existing
*/
obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
smp_mb();
obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
RETURN(0);
}
static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
{
struct osd_thread_info *info = osd_oti_get(env);
struct lu_buf buf;
int rc;
struct lustre_mdt_attrs *lma;
const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
ENTRY;
BUILD_BUG_ON(sizeof(info->oti_buf) < sizeof(*lma));
lma = (struct lustre_mdt_attrs *)info->oti_buf;
buf.lb_buf = lma;
buf.lb_len = sizeof(info->oti_buf);
rc = osd_xattr_get(env, &obj->oo_dt, &buf, XATTR_NAME_LMA);
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))) {
rc = -EOPNOTSUPP;
CWARN("%s: unsupported incompat LMA feature(s) %#x for fid = "DFID": rc = %d\n",
osd_obj2dev(obj)->od_svname,
lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
PFID(rfid), rc);
} else if (unlikely(!lu_fid_eq(rfid, &lma->lma_self_fid))) {
rc = -EREMCHG;
CERROR("%s: FID-in-LMA "DFID" does not match the object self-fid "DFID": rc = %d\n",
osd_obj2dev(obj)->od_svname,
PFID(&lma->lma_self_fid), PFID(rfid), rc);
} else {
struct osd_device *osd = osd_obj2dev(obj);
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_remote_parent_dir != ZFS_NO_OBJECT)
lu_object_set_agent_entry(&obj->oo_dt.do_lu);
}
} else if (rc == -ENODATA) {
/* haven't initialize LMA xattr */
rc = 0;
}
RETURN(rc);
}
/**
* Helper function to retrieve DMU object id from fid for accounting object
*/
static dnode_t *osd_quota_fid2dmu(const struct osd_device *osd,
const struct lu_fid *fid)
{
dnode_t *dn = NULL;
LASSERT(fid_is_acct(fid));
switch (fid_oid(fid)) {
case ACCT_USER_OID:
dn = osd->od_userused_dn;
break;
case ACCT_GROUP_OID:
dn = osd->od_groupused_dn;
break;
#ifdef ZFS_PROJINHERIT
case ACCT_PROJECT_OID:
dn = osd->od_projectused_dn;
break;
#endif
default:
break;
}
return dn;
}
/*
* 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);
struct osd_device *osd = osd_obj2dev(obj);
const struct lu_fid *fid = lu_object_fid(l);
struct lustre_scrub *scrub = &osd->od_scrub;
struct osd_thread_info *info = osd_oti_get(env);
struct luz_direntry *zde = &info->oti_zde;
struct osd_idmap_cache *idc;
char *name = info->oti_str;
uint64_t oid;
int rc = 0;
int rc1;
bool remote = false;
ENTRY;
LASSERT(osd_invariant(obj));
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;
GOTO(out, rc = 0);
}
if (conf && conf->loc_flags & LOC_F_NEW)
GOTO(out, rc = 0);
if (unlikely(fid_is_acct(fid))) {
obj->oo_dn = osd_quota_fid2dmu(osd, fid);
if (obj->oo_dn) {
obj->oo_dt.do_index_ops = &osd_acct_index_ops;
l->lo_header->loh_attr |= LOHA_EXISTS;
}
GOTO(out, rc = 0);
}
idc = osd_idc_find(env, osd, fid);
if (idc && !idc->oic_remote && idc->oic_dnode != ZFS_NO_OBJECT) {
oid = idc->oic_dnode;
goto zget;
}
rc = -ENOENT;
if (!list_empty(&osd->od_scrub.os_inconsistent_items))
rc = osd_oii_lookup(osd, fid, &oid);
if (rc)
rc = osd_fid_lookup(env, osd, fid, &oid);
if (rc == -ENOENT) {
if (likely(!(fid_is_norm(fid) || fid_is_igif(fid)) ||
fid_is_on_ost(env, osd, fid) ||
!zfs_test_bit(osd_oi_fid2idx(osd, fid),
scrub->os_file.sf_oi_bitmap)))
GOTO(out, rc = 0);
rc = -EREMCHG;
goto trigger;
}
if (rc)
GOTO(out, rc);
zget:
LASSERT(obj->oo_dn == NULL);
rc = __osd_obj2dnode(osd->od_os, oid, &obj->oo_dn);
/* EEXIST will be returned if object is being deleted in ZFS */
if (rc == -EEXIST)
GOTO(out, rc = 0);
if (rc) {
CERROR("%s: lookup "DFID"/%#llx failed: rc = %d\n",
osd->od_svname, PFID(lu_object_fid(l)), oid, rc);
GOTO(out, rc);
}
rc = osd_object_init0(env, obj);
if (rc)
GOTO(out, rc);
if (unlikely(obj->oo_header))
GOTO(out, rc = 0);
rc = osd_check_lma(env, obj);
if (rc != -EREMCHG)
GOTO(out, rc);
osd_scrub_refresh_mapping(env, osd, fid, oid, DTO_INDEX_DELETE, true,
NULL);
trigger:
/* We still have chance to get the valid dnode: for the object that is
* referenced by remote name entry, the object on the local MDT will be
* linked under the dir /REMOTE_PARENT_DIR with its FID string as name.
*
* During the OI scrub, if we cannot find the OI mapping, we may still
* have change to map the FID to local OID via lookup the dir
* /REMOTE_PARENT_DIR.
*/
if (!remote && !fid_is_on_ost(env, osd, fid)) {
osd_fid2str(name, fid, sizeof(info->oti_str));
rc = osd_zap_lookup(osd, osd->od_remote_parent_dir,
NULL, name, 8, 3, (void *)zde);
if (!rc) {
oid = zde->lzd_reg.zde_dnode;
osd_dnode_rele(obj->oo_dn);
obj->oo_dn = NULL;
remote = true;
goto zget;
}
}
/* The case someone triggered the OI scrub already. */
if (scrub->os_running) {
if (!rc) {
LASSERT(remote);
lu_object_set_agent_entry(l);
osd_oii_insert(env, osd, fid, oid, false);
} else {
rc = -EINPROGRESS;
}
GOTO(out, rc);
}
/* The case NOT allow to trigger OI scrub automatically. */
if (osd->od_scrub.os_auto_scrub_interval == AS_NEVER)
GOTO(out, rc);
/* It is me to trigger the OI scrub. */
rc1 = osd_scrub_start(env, osd, SS_CLEAR_DRYRUN |
SS_CLEAR_FAILOUT | SS_AUTO_FULL);
CDEBUG_LIMIT(D_LFSCK | D_CONSOLE | D_WARNING,
"%s: trigger OI scrub by RPC for "DFID"/%#llx: rc = %d\n",
osd_name(osd), PFID(fid), oid, rc1);
if (!rc) {
LASSERT(remote);
lu_object_set_agent_entry(l);
if (!rc1)
osd_oii_insert(env, osd, fid, oid, false);
} else {
if (!rc1)
rc = -EINPROGRESS;
else
rc = -EREMCHG;
}
GOTO(out, rc);
out:
RETURN(rc);
}
/*
* 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;
LASSERT(osd_invariant(obj));
dt_object_fini(&obj->oo_dt);
/* obj doesn't contain an lu_object_header, so we don't need call_rcu */
OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
if (unlikely(h))
lu_object_header_free(h);
}
static int
osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
{
int rc = -EBUSY;
LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
/* the object is supposed to be exclusively locked by
* the caller (osd_destroy()), while the transaction
* (oh) is per-thread and not shared
*/
if (likely(list_empty(&obj->oo_unlinked_linkage))) {
list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
rc = 0;
}
return rc;
}
/* Default to max data size covered by a level-1 indirect block */
static unsigned long osd_sync_destroy_max_size =
1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
module_param(osd_sync_destroy_max_size, ulong, 0444);
MODULE_PARM_DESC(osd_sync_destroy_max_size, "Maximum object size to use synchronous destroy.");
static inline void
osd_object_set_destroy_type(struct osd_object *obj)
{
/*
* Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
* only once and use it consistently thereafter.
*/
down_write(&obj->oo_guard);
if (obj->oo_destroy == OSD_DESTROY_NONE) {
if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
obj->oo_destroy = OSD_DESTROY_SYNC;
else /* Larger objects are destroyed asynchronously */
obj->oo_destroy = OSD_DESTROY_ASYNC;
}
up_write(&obj->oo_guard);
}
static int osd_declare_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 osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
dnode_t *dn;
int rc;
uint64_t zapid;
ENTRY;
LASSERT(th != NULL);
if (unlikely(obj->oo_dn == NULL))
RETURN(-ENOENT);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
dmu_tx_mark_netfree(oh->ot_tx);
/* declare that we'll remove object from fid-dnode mapping */
zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
osd_tx_hold_zap(oh->ot_tx, zapid, dn, FALSE, NULL);
osd_declare_xattrs_destroy(env, obj, oh);
/* one less inode */
rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
obj->oo_attr.la_gid, obj->oo_attr.la_projid,
-1, oh, NULL, OSD_QID_INODE);
if (rc)
RETURN(rc);
/* data to be truncated */
rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
obj->oo_attr.la_gid, obj->oo_attr.la_projid,
0, oh, NULL, OSD_QID_BLK);
if (rc)
RETURN(rc);
osd_object_set_destroy_type(obj);
if (obj->oo_destroy == OSD_DESTROY_SYNC)
dmu_tx_hold_free(oh->ot_tx, obj->oo_dn->dn_object,
0, DMU_OBJECT_END);
else
osd_tx_hold_zap(oh->ot_tx, osd->od_unlinked->dn_object,
osd->od_unlinked, TRUE, NULL);
/* remove agent entry (if have) from remote parent */
if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
osd_tx_hold_zap(oh->ot_tx, osd->od_remote_parent_dir,
NULL, FALSE, NULL);
/* will help to find FID->ino when this obj is being added to PENDING */
osd_idc_find_and_init(env, osd, obj);
RETURN(0);
}
static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
struct osd_thread_info *info = osd_oti_get(env);
char *buf = info->oti_str;
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_thandle *oh;
int rc;
uint64_t oid, zapid;
dnode_t *zdn;
ENTRY;
down_write(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(obj->oo_dn != NULL);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(oh != NULL);
LASSERT(oh->ot_tx != NULL);
/* remove obj ref from index dir (it depends) */
zapid = osd_get_name_n_idx(env, osd, fid, buf,
sizeof(info->oti_str), &zdn);
rc = osd_xattrs_destroy(env, obj, oh);
if (rc) {
CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
osd->od_svname, buf, rc);
GOTO(out, rc);
}
if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
rc = osd_delete_from_remote_parent(env, osd, obj, oh, true);
if (rc)
GOTO(out, rc);
}
oid = obj->oo_dn->dn_object;
if (unlikely(obj->oo_destroy == OSD_DESTROY_NONE)) {
/* this may happen if the destroy wasn't declared
* e.g. when the object is created and then destroyed
* in the same transaction - we don't need additional
* space for destroy specifically
*/
LASSERT(obj->oo_attr.la_size <= osd_sync_destroy_max_size);
rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
if (rc)
CERROR("%s: failed to free %s/%#llx: rc = %d\n",
osd->od_svname, buf, oid, rc);
} else if (obj->oo_destroy == OSD_DESTROY_SYNC) {
rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
if (rc)
CERROR("%s: failed to free %s/%#llx: rc = %d\n",
osd->od_svname, buf, oid, rc);
} else { /* asynchronous destroy */
char *key = info->oti_key;
rc = osd_object_unlinked_add(obj, oh);
if (rc)
GOTO(out, rc);
snprintf(key, sizeof(info->oti_key), "%llx", oid);
rc = osd_zap_add(osd, osd->od_unlinked->dn_object,
osd->od_unlinked, key, 8, 1, &oid, oh->ot_tx);
if (rc)
CERROR("%s: zap_add_int() failed %s/%#llx: rc = %d\n",
osd->od_svname, buf, oid, rc);
}
/* Remove the OI mapping after the destroy to handle the race with
* OI scrub that may insert missed OI mapping during the interval.
*/
rc = osd_zap_remove(osd, zapid, zdn, buf, oh->ot_tx);
if (unlikely(rc == -ENOENT))
rc = 0;
if (rc)
CERROR("%s: zap_remove(%s) failed: rc = %d\n",
osd->od_svname, buf, rc);
GOTO(out, rc);
out:
/* not needed in the cache anymore */
set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
if (rc == 0)
obj->oo_destroyed = 1;
up_write(&obj->oo_guard);
RETURN(0);
}
static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
{
struct osd_object *obj = osd_obj(l);
const struct lu_fid *fid = lu_object_fid(l);
dmu_buf_t **dbs = obj->oo_dbs;
int i;
for (i = 0; i < OSD_MAX_DBUFS; i++) {
if (dbs[i])
dbuf_rele((dmu_buf_impl_t *)dbs[i], osd_0copy_tag);
}
if (obj->oo_dn) {
if (likely(!fid_is_acct(fid))) {
osd_object_sa_fini(obj);
if (obj->oo_sa_xattr) {
nvlist_free(obj->oo_sa_xattr);
obj->oo_sa_xattr = NULL;
}
osd_dnode_rele(obj->oo_dn);
list_del(&obj->oo_sa_linkage);
}
obj->oo_dn = NULL;
}
}
/*
* Concurrency: ->loo_object_release() is called under site spin-lock.
*/
static void osd_object_release(const struct lu_env *env,
struct lu_object *l)
{
}
/*
* 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);
return (*p)(env, cookie, LUSTRE_OSD_ZFS_NAME"-object@%p", o);
}
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);
struct osd_device *osd = osd_obj2dev(obj);
uint64_t blocks;
uint32_t blksize;
int rc = 0;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
if (unlikely(fid_is_acct(lu_object_fid(&dt->do_lu))))
GOTO(out, rc = 0);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_dn);
read_lock(&obj->oo_attr_lock);
*attr = obj->oo_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;
}
read_unlock(&obj->oo_attr_lock);
if (attr->la_valid & LA_FLAGS && attr->la_flags & LUSTRE_ORPHAN_FL)
CDEBUG(D_INFO, "%s: set orphan flag on "DFID" (%#llx/%#x)\n",
osd_obj2dev(obj)->od_svname,
PFID(lu_object_fid(&dt->do_lu)),
attr->la_valid, obj->oo_lma_flags);
/* with ZFS_DEBUG zrl_add_debug() called by DB_DNODE_ENTER()
* from within sa_object_size() can block on a mutex, so
* we can't call sa_object_size() holding rwlock
*/
sa_object_size(obj->oo_sa_hdl, &blksize, &blocks);
/* we do not control size of indices, so always calculate
* it from number of blocks reported by DMU
*/
if (S_ISDIR(attr->la_mode)) {
attr->la_size = 512 * blocks;
rc = -zap_count(osd->od_os, obj->oo_dn->dn_object,
&attr->la_dirent_count);
}
/* Block size may be not set; suggest maximal I/O transfers. */
if (blksize == 0)
blksize = osd->od_max_blksz;
attr->la_blksize = blksize;
attr->la_blocks = blocks;
attr->la_valid |= LA_BLOCKS | LA_BLKSIZE;
out:
up_read(&obj->oo_guard);
return rc;
}
#ifdef ZFS_PROJINHERIT
/*
* For the existed object that is upgraded from old system, its ondisk layout
* has no slot for the project ID attribute. But quota accounting logic needs
* to access related slots by offset directly. So we need to adjust these old
* objects' layout to make the project ID to some unified and fixed offset.
*/
static int osd_add_projid(const struct lu_env *env, struct osd_object *obj,
struct osd_thandle *oh, uint64_t projid)
{
sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
struct osd_device *osd = osd_obj2dev(obj);
uint64_t gen;
size_t sa_size;
char *dxattr = NULL;
int rc, cnt;
rc = -sa_lookup(obj->oo_sa_hdl, SA_ZPL_PROJID(osd), &osa->projid, 8);
if (unlikely(rc == 0))
rc = -EEXIST;
if (rc != -ENOENT)
GOTO(out, rc);
gen = dmu_tx_get_txg(oh->ot_tx);
osa->atime[0] = obj->oo_attr.la_atime;
osa->ctime[0] = obj->oo_attr.la_ctime;
osa->mtime[0] = obj->oo_attr.la_mtime;
osa->btime[0] = obj->oo_attr.la_btime;
osa->mode = obj->oo_attr.la_mode;
osa->uid = obj->oo_attr.la_uid;
osa->gid = obj->oo_attr.la_gid;
osa->rdev = obj->oo_attr.la_rdev;
osa->nlink = obj->oo_attr.la_nlink;
osa->flags = attrs_fs2zfs(obj->oo_attr.la_flags) | ZFS_PROJID;
osa->size = obj->oo_attr.la_size;
osa->projid = projid;
cnt = 0;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL,
&obj->oo_parent, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, osa->btime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PROJID(osd), NULL, &osa->projid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
if (obj->oo_sa_xattr == NULL) {
rc = __osd_xattr_load(osd, obj->oo_sa_hdl, &obj->oo_sa_xattr);
if (rc)
GOTO(out, rc);
}
if (obj->oo_sa_xattr) {
rc = -nvlist_size(obj->oo_sa_xattr, &sa_size, NV_ENCODE_XDR);
if (rc)
GOTO(out, rc);
dxattr = zio_buf_alloc(sa_size);
if (dxattr == NULL)
GOTO(out, rc = -ENOMEM);
rc = -nvlist_pack(obj->oo_sa_xattr, &dxattr, &sa_size,
NV_ENCODE_XDR, KM_SLEEP);
if (rc)
GOTO(out, rc);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_DXATTR(osd),
NULL, dxattr, sa_size);
}
rc = -sa_replace_all_by_template(obj->oo_sa_hdl, bulk, cnt, oh->ot_tx);
out:
if (dxattr)
zio_buf_free(dxattr, sa_size);
return rc;
}
#endif
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_thread_info *info = osd_oti_get(env);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
dmu_tx_hold_t *txh;
struct osd_thandle *oh;
int rc = 0;
bool found;
ENTRY;
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
oh = container_of(handle, struct osd_thandle, ot_super);
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out_sem, rc = 0);
LASSERT(obj->oo_sa_hdl != NULL);
LASSERT(oh->ot_tx != NULL);
/* regular attributes are part of the bonus buffer */
/* let's check whether this object is already part of
* transaction..
*/
found = false;
for (txh = list_head(&oh->ot_tx->tx_holds); txh;
txh = list_next(&oh->ot_tx->tx_holds, txh)) {
if (txh->txh_dnode == NULL)
continue;
if (txh->txh_dnode->dn_object != obj->oo_dn->dn_object)
continue;
/* this object is part of the transaction already
* we don't need to declare bonus again
*/
found = true;
break;
}
if (!found)
dmu_tx_hold_bonus(oh->ot_tx, obj->oo_dn->dn_object);
if (oh->ot_tx->tx_err != 0)
GOTO(out_sem, rc = -oh->ot_tx->tx_err);
if (!attr)
GOTO(out_sem, rc = 0);
if (attr->la_valid & LA_FLAGS) {
/* punch must be aware we are dealing with an encrypted file */
if (attr->la_flags & LUSTRE_ENCRYPT_FL)
obj->oo_lma_flags |= LUSTRE_ENCRYPT_FL;
}
if (attr->la_valid & (LA_UID | LA_GID | LA_PROJID)) {
uint64_t bspace;
uint32_t blksize;
sa_object_size(obj->oo_sa_hdl, &blksize, &bspace);
bspace = stoqb(bspace * 512);
CDEBUG(D_QUOTA,
"%s: quota on UID=%u GID=%u PROJID=%u bspace=%lld*%u\n",
osd->od_svname, attr->la_uid, attr->la_gid,
attr->la_projid, bspace, blksize);
/* to preserve locking order - qsd_transfer() may need to flush
* currently running transaction when we're out of quota.
*/
up_read(&obj->oo_guard);
/* quota enforcement for user */
if (attr->la_valid & LA_UID &&
attr->la_uid != obj->oo_attr.la_uid) {
rc = qsd_transfer(env, osd_def_qsd(osd),
&oh->ot_quota_trans, USRQUOTA,
obj->oo_attr.la_uid, attr->la_uid,
bspace, &info->oti_qi);
if (rc)
GOTO(out, rc);
}
/* quota enforcement for group */
if (attr->la_valid & LA_GID &&
attr->la_gid != obj->oo_attr.la_gid) {
rc = qsd_transfer(env, osd_def_qsd(osd),
&oh->ot_quota_trans, GRPQUOTA,
obj->oo_attr.la_gid, attr->la_gid,
bspace, &info->oti_qi);
if (rc)
GOTO(out, rc);
}
#ifdef ZFS_PROJINHERIT
/* quota enforcement for project */
if (attr->la_valid & LA_PROJID &&
attr->la_projid != obj->oo_attr.la_projid) {
if (!osd->od_projectused_dn)
GOTO(out, rc = -EOPNOTSUPP);
if (!zpl_is_valid_projid(attr->la_projid))
GOTO(out, rc = -EINVAL);
info->oti_qi.lqi_ignore_root_proj_quota =
handle->th_ignore_root_proj_quota;
rc = qsd_transfer(env, osd_def_qsd(osd),
&oh->ot_quota_trans, PRJQUOTA,
obj->oo_attr.la_projid,
attr->la_projid, bspace,
&info->oti_qi);
if (rc)
GOTO(out, rc);
}
#endif
} else {
up_read(&obj->oo_guard);
}
out:
RETURN(rc);
out_sem:
up_read(&obj->oo_guard);
RETURN(rc);
}
/*
* Set the attributes of an object
*
* The transaction passed to this routine must have
* dmu_tx_hold_bonus(tx, oid) called and then assigned
* to a transaction group.
*/
static int osd_attr_set(const struct lu_env *env, struct dt_object *dt,
const struct lu_attr *la, struct thandle *handle)
{
struct osd_thread_info *info = osd_oti_get(env);
sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
struct osa_attr *osa = &info->oti_osa;
__u64 valid = la->la_valid;
int cnt;
int rc = 0;
ENTRY;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(handle != NULL);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_sa_hdl);
oh = container_of(handle, struct osd_thandle, ot_super);
/* Assert that the transaction has been assigned to a transaction grp */
LASSERT(oh->ot_tx->tx_txg != 0);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) && !osd->od_is_ost) {
struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
char *buf = info->oti_str;
dnode_t *zdn = NULL;
uint64_t zapid;
zapid = osd_get_name_n_idx(env, osd, lu_object_fid(&dt->do_lu),
buf, sizeof(info->oti_str), &zdn);
rc = osd_zap_lookup(osd, zapid, zdn, buf, 8,
sizeof(*zde) / 8, zde);
if (!rc) {
zde->zde_dnode -= 1;
rc = -zap_update(osd->od_os, zapid, buf, 8,
sizeof(*zde) / 8, zde, oh->ot_tx);
}
if (rc > 0)
rc = 0;
GOTO(out, rc);
}
/* Only allow set size for regular file */
if (!S_ISREG(dt->do_lu.lo_header->loh_attr))
valid &= ~(LA_SIZE | LA_BLOCKS);
if (valid & LA_CTIME && la->la_ctime == obj->oo_attr.la_ctime)
valid &= ~LA_CTIME;
if (valid & LA_MTIME && la->la_mtime == obj->oo_attr.la_mtime)
valid &= ~LA_MTIME;
if (valid & LA_ATIME && la->la_atime == obj->oo_attr.la_atime)
valid &= ~LA_ATIME;
if (valid == 0)
GOTO(out, rc = 0);
if (valid & LA_FLAGS) {
struct lustre_mdt_attrs *lma;
struct lu_buf buf;
int size = 0;
if (la->la_flags & LUSTRE_LMA_FL_MASKS) {
LASSERT(!obj->oo_pfid_in_lma);
BUILD_BUG_ON(sizeof(info->oti_buf) < sizeof(*lma));
lma = (struct lustre_mdt_attrs *)&info->oti_buf;
buf.lb_buf = lma;
buf.lb_len = sizeof(info->oti_buf);
/* Please do NOT call osd_xattr_get() directly, that
* will cause recursive down_read() on oo_guard.
*/
rc = osd_xattr_get_internal(env, obj, &buf,
XATTR_NAME_LMA, &size);
if (!rc && unlikely(size < sizeof(*lma))) {
rc = -EINVAL;
} else if (!rc) {
lma->lma_incompat =
le32_to_cpu(lma->lma_incompat);
if ((lma->lma_incompat &
lustre_to_lma_flags(la->la_flags)) ==
lustre_to_lma_flags(la->la_flags))
/* save a useless xattr set if lma
* incompat already has the flags
*/
GOTO(lock, rc = 0);
lma->lma_incompat |=
lustre_to_lma_flags(la->la_flags);
lma->lma_incompat =
cpu_to_le32(lma->lma_incompat);
buf.lb_buf = lma;
buf.lb_len = sizeof(*lma);
rc = osd_xattr_set_internal(env, obj, &buf,
XATTR_NAME_LMA,
LU_XATTR_REPLACE,
oh);
}
if (rc < 0) {
CWARN("%s: failed to set LMA flags: rc = %d\n",
osd->od_svname, rc);
GOTO(out, rc);
} else {
obj->oo_lma_flags =
la->la_flags & LUSTRE_LMA_FL_MASKS;
}
}
}
lock:
write_lock(&obj->oo_attr_lock);
cnt = 0;
if (valid & LA_PROJID) {
#ifdef ZFS_PROJINHERIT
if (osd->od_projectused_dn) {
if (obj->oo_with_projid) {
osa->projid = la->la_projid;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PROJID(osd),
NULL, &osa->projid, 8);
} else {
rc = osd_add_projid(env, obj, oh,
la->la_projid);
if (unlikely(rc == -EEXIST)) {
rc = 0;
} else if (rc != 0) {
write_unlock(&obj->oo_attr_lock);
GOTO(out, rc);
}
obj->oo_with_projid = 1;
}
obj->oo_attr.la_projid = la->la_projid;
} else
#endif
valid &= ~LA_PROJID;
}
if (valid & LA_ATIME) {
osa->atime[0] = obj->oo_attr.la_atime = la->la_atime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL,
osa->atime, 16);
}
if (valid & LA_MTIME) {
osa->mtime[0] = obj->oo_attr.la_mtime = la->la_mtime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL,
osa->mtime, 16);
}
if (valid & LA_CTIME) {
osa->ctime[0] = obj->oo_attr.la_ctime = la->la_ctime;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL,
osa->ctime, 16);
}
if (valid & LA_MODE) {
/* mode is stored along with type, so read it first */
obj->oo_attr.la_mode = (obj->oo_attr.la_mode & S_IFMT) |
(la->la_mode & ~S_IFMT);
osa->mode = obj->oo_attr.la_mode;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL,
&osa->mode, 8);
}
if (valid & LA_SIZE) {
osa->size = obj->oo_attr.la_size = la->la_size;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL,
&osa->size, 8);
}
if (valid & LA_NLINK) {
osa->nlink = obj->oo_attr.la_nlink = la->la_nlink;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL,
&osa->nlink, 8);
}
if (valid & LA_RDEV) {
osa->rdev = obj->oo_attr.la_rdev = la->la_rdev;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL,
&osa->rdev, 8);
}
if (valid & LA_FLAGS) {
osa->flags = attrs_fs2zfs(la->la_flags);
/* many flags not supported by zfs, ensure good cached copy */
obj->oo_attr.la_flags = attrs_zfs2fs(osa->flags);
#ifdef ZFS_PROJINHERIT
if (obj->oo_with_projid && osd->od_projectused_dn)
osa->flags |= ZFS_PROJID;
#endif
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL,
&osa->flags, 8);
}
if (valid & LA_UID) {
osa->uid = obj->oo_attr.la_uid = la->la_uid;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL,
&osa->uid, 8);
}
if (valid & LA_GID) {
osa->gid = obj->oo_attr.la_gid = la->la_gid;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL,
&osa->gid, 8);
}
obj->oo_attr.la_valid |= valid;
write_unlock(&obj->oo_attr_lock);
LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
rc = osd_object_sa_bulk_update(obj, bulk, cnt, oh);
out:
up_read(&obj->oo_guard);
RETURN(rc);
}
/*
* Object creation.
*
* XXX temporary solution.
*/
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 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)
{
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
uint64_t zapid;
dnode_t *dn;
int rc, dnode_size;
ENTRY;
LASSERT(dof);
switch (dof->dof_type) {
case DFT_REGULAR:
case DFT_SYM:
case DFT_NODE:
if (obj->oo_dt.do_body_ops == NULL)
obj->oo_dt.do_body_ops = &osd_body_ops;
break;
default:
break;
}
LASSERT(handle != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
/* this is the minimum set of EAs on every Lustre object */
obj->oo_ea_in_bonus = OSD_BASE_EA_IN_BONUS;
/* reserve 32 bytes for extra stuff like ACLs */
dnode_size = size_roundup_power2(obj->oo_ea_in_bonus + 32);
switch (dof->dof_type) {
case DFT_DIR:
dt->do_index_ops = &osd_dir_ops;
fallthrough;
case DFT_INDEX:
/* for zap create */
dmu_tx_hold_zap(oh->ot_tx, DMU_NEW_OBJECT, FALSE, NULL);
dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
break;
case DFT_REGULAR:
case DFT_SYM:
case DFT_NODE:
/* first, we'll create new object */
dmu_tx_hold_sa_create(oh->ot_tx, dnode_size);
break;
default:
LBUG();
break;
}
/* and we'll add it to some mapping */
zapid = osd_get_name_n_idx(env, osd, fid, NULL, 0, &dn);
osd_tx_hold_zap(oh->ot_tx, zapid, dn, TRUE, NULL);
/* will help to find FID->ino mapping at dt_insert() */
osd_idc_find_and_init(env, osd, obj);
rc = osd_declare_quota(env, osd, attr->la_uid, attr->la_gid,
attr->la_projid, 1, oh, NULL, OSD_QID_INODE);
RETURN(rc);
}
int __osd_attr_init(const struct lu_env *env, struct osd_device *osd,
struct osd_object *obj, sa_handle_t *sa_hdl, dmu_tx_t *tx,
struct lu_attr *la, uint64_t parent,
nvlist_t *xattr)
{
sa_bulk_attr_t *bulk = osd_oti_get(env)->oti_attr_bulk;
struct osa_attr *osa = &osd_oti_get(env)->oti_osa;
uint64_t gen;
inode_timespec_t now;
int cnt;
int rc;
char *dxattr = NULL;
size_t sa_size;
LASSERT(sa_hdl);
gen = dmu_tx_get_txg(tx);
gethrestime(&now);
ZFS_TIME_ENCODE(&now, osa->btime);
osa->atime[0] = la->la_atime;
osa->ctime[0] = la->la_ctime;
osa->mtime[0] = la->la_mtime;
osa->mode = la->la_mode;
osa->uid = la->la_uid;
osa->gid = la->la_gid;
osa->rdev = la->la_rdev;
osa->nlink = la->la_nlink;
if (la->la_valid & LA_FLAGS)
osa->flags = attrs_fs2zfs(la->la_flags);
else
osa->flags = 0;
osa->size = la->la_size;
#ifdef ZFS_PROJINHERIT
if (osd->od_projectused_dn) {
if (la->la_valid & LA_PROJID)
osa->projid = la->la_projid;
else
osa->projid = ZFS_DEFAULT_PROJID;
osa->flags |= ZFS_PROJID;
if (obj)
obj->oo_with_projid = 1;
} else {
osa->flags &= ~ZFS_PROJID;
}
#endif
/*
* we need to create all SA below upon object create.
*
* XXX The attribute order matters since the accounting callback relies
* on static offsets (i.e. SA_*_OFFSET, see zfs_space_delta_cb()) to
* look up the UID/GID/PROJID attributes. Moreover, the callback does
* not seem to support the spill block.
* We define attributes in the same order as SA_*_OFFSET in order to
* work around the problem. See ORI-610.
*/
cnt = 0;
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MODE(osd), NULL, &osa->mode, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_SIZE(osd), NULL, &osa->size, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GEN(osd), NULL, &gen, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_UID(osd), NULL, &osa->uid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_GID(osd), NULL, &osa->gid, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PARENT(osd), NULL, &parent, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_FLAGS(osd), NULL, &osa->flags, 8);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_ATIME(osd), NULL, osa->atime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_MTIME(osd), NULL, osa->mtime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CTIME(osd), NULL, osa->ctime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_CRTIME(osd), NULL, osa->btime, 16);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_LINKS(osd), NULL, &osa->nlink, 8);
#ifdef ZFS_PROJINHERIT
if (osd->od_projectused_dn)
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_PROJID(osd), NULL,
&osa->projid, 8);
#endif
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_RDEV(osd), NULL, &osa->rdev, 8);
LASSERT(cnt <= ARRAY_SIZE(osd_oti_get(env)->oti_attr_bulk));
if (xattr) {
rc = -nvlist_size(xattr, &sa_size, NV_ENCODE_XDR);
LASSERT(rc == 0);
dxattr = zio_buf_alloc(sa_size);
LASSERT(dxattr);
rc = -nvlist_pack(xattr, &dxattr, &sa_size,
NV_ENCODE_XDR, KM_SLEEP);
LASSERT(rc == 0);
SA_ADD_BULK_ATTR(bulk, cnt, SA_ZPL_DXATTR(osd),
NULL, dxattr, sa_size);
}
rc = -sa_replace_all_by_template(sa_hdl, bulk, cnt, tx);
if (dxattr)
zio_buf_free(dxattr, sa_size);
return rc;
}
int osd_find_new_dnode(const struct lu_env *env, dmu_tx_t *tx,
uint64_t oid, dnode_t **dnp)
{
dmu_tx_hold_t *txh;
int rc = 0;
/* take dnode_t from tx to save on dnode#->dnode_t lookup */
for (txh = list_tail(&tx->tx_holds); txh;
txh = list_prev(&tx->tx_holds, txh)) {
dnode_t *dn = txh->txh_dnode;
dmu_buf_impl_t *db;
if (dn == NULL)
continue;
if (dn->dn_object != oid)
continue;
db = dn->dn_bonus;
if (db == NULL) {
rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
if (dn->dn_bonus == NULL)
dbuf_create_bonus(dn);
rw_exit(&dn->dn_struct_rwlock);
}
db = dn->dn_bonus;
LASSERT(db);
LASSERT(dn->dn_handle);
DB_DNODE_ENTER(db);
if (zfs_refcount_add(&db->db_holds, osd_obj_tag) == 1) {
zfs_refcount_add(&dn->dn_holds, osd_obj_tag);
atomic_inc_32(&dn->dn_dbufs_count);
}
*dnp = dn;
DB_DNODE_EXIT(db);
dbuf_read(db, NULL, DB_RF_MUST_SUCCEED | DB_RF_NOPREFETCH);
break;
}
if (unlikely(*dnp == NULL))
rc = __osd_obj2dnode(tx->tx_objset, oid, dnp);
return rc;
}
int osd_find_dnsize(struct osd_device *osd, int ea_in_bonus)
{
int dnsize;
if (osd->od_dnsize == ZFS_DNSIZE_AUTO) {
dnsize = DNODE_MIN_SIZE;
do {
if (DN_BONUS_SIZE(dnsize) >= ea_in_bonus + 32)
break;
dnsize <<= 1;
} while (dnsize < DNODE_MAX_SIZE);
if (dnsize > DNODE_MAX_SIZE)
dnsize = DNODE_MAX_SIZE;
} else if (osd->od_dnsize == ZFS_DNSIZE_1K) {
dnsize = 1024;
} else if (osd->od_dnsize == ZFS_DNSIZE_2K) {
dnsize = 2048;
} else if (osd->od_dnsize == ZFS_DNSIZE_4K) {
dnsize = 4096;
} else if (osd->od_dnsize == ZFS_DNSIZE_8K) {
dnsize = 8192;
} else if (osd->od_dnsize == ZFS_DNSIZE_16K) {
dnsize = 16384;
} else {
dnsize = DNODE_MIN_SIZE;
}
return dnsize;
}
/*
* The transaction passed to this routine must have
* dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT) called and then assigned
* to a transaction group.
*/
int __osd_object_create(const struct lu_env *env, struct osd_device *osd,
struct osd_object *obj, const struct lu_fid *fid,
dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la)
{
dmu_object_type_t type = DMU_OT_PLAIN_FILE_CONTENTS;
uint64_t oid;
int size;
/* Use DMU_OTN_UINT8_METADATA for local objects so their data blocks
* would get an additional ditto copy
*/
if (unlikely(S_ISREG(la->la_mode) &&
fid_seq_is_local_file(fid_seq(fid))))
type = DMU_OTN_UINT8_METADATA;
/* Create a new DMU object using the default dnode size. */
if (obj)
size = obj->oo_ea_in_bonus;
else
size = OSD_BASE_EA_IN_BONUS;
oid = osd_dmu_object_alloc(osd->od_os, type, 0,
osd_find_dnsize(osd, size), tx);
LASSERT(la->la_valid & LA_MODE);
la->la_size = 0;
la->la_nlink = 1;
return osd_find_new_dnode(env, tx, oid, dnp);
}
/*
* The transaction passed to this routine must have
* dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, ...) called and then assigned
* to a transaction group.
*
* Using ZAP_FLAG_HASH64 will force the ZAP to always be a FAT ZAP.
* This is fine for directories today, because storing the FID in the dirent
* will also require a FAT ZAP. If there is a new type of micro ZAP created
* then we might need to re-evaluate the use of this flag and instead do
* a conversion from the different internal ZAP hash formats being used.
*/
int __osd_zap_create(const struct lu_env *env, struct osd_device *osd,
dnode_t **dnp, dmu_tx_t *tx, struct lu_attr *la,
unsigned int dnsize, zap_flags_t flags)
{
uint64_t oid;
/* Assert that the transaction has been assigned to a transaction grp */
LASSERT(tx->tx_txg != 0);
*dnp = NULL;
oid = osd_zap_create_flags(osd->od_os, 0, flags | ZAP_FLAG_HASH64,
DMU_OT_DIRECTORY_CONTENTS,
osd->od_fzap_blockshift,
DN_MAX_INDBLKSHIFT, /* indirect blockshift */
dnsize, tx);
la->la_size = 2;
la->la_nlink = 1;
return osd_find_new_dnode(env, tx, oid, dnp);
}
static dnode_t *osd_mkidx(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
struct osd_device *osd = osd_obj2dev(obj);
dnode_t *dn;
int rc;
/* Index file should be created as regular file in order not to confuse
* ZPL which could interpret them as directory.
* We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
* binary keys
*/
LASSERT(S_ISREG(la->la_mode));
rc = __osd_zap_create(env, osd, &dn, oh->ot_tx, la,
osd_find_dnsize(osd, obj->oo_ea_in_bonus), ZAP_FLAG_UINT64_KEY);
if (rc)
return ERR_PTR(rc);
return dn;
}
static dnode_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
struct osd_device *osd = osd_obj2dev(obj);
dnode_t *dn;
int rc;
LASSERT(S_ISDIR(la->la_mode));
rc = __osd_zap_create(env, osd, &dn, oh->ot_tx, la,
osd_find_dnsize(osd, obj->oo_ea_in_bonus), 0);
if (rc)
return ERR_PTR(rc);
return dn;
}
static dnode_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
struct osd_device *osd = osd_obj2dev(obj);
dnode_t *dn;
int rc;
LASSERT(S_ISREG(la->la_mode));
rc = __osd_object_create(env, osd, obj, fid, &dn, oh->ot_tx, la);
if (rc)
return ERR_PTR(rc);
if ((fid_is_idif(fid) || fid_is_norm(fid) || fid_is_echo(fid))) {
/* The minimum block size must be at least page size otherwise
* it will break the assumption in tgt_thread_big_cache where
* the array size is PTLRPC_MAX_BRW_PAGES. It will also affect
* RDMA due to subpage transfer size
*/
rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
PAGE_SIZE, 0, oh->ot_tx);
if (unlikely(rc)) {
CERROR("%s: can't change blocksize: %d\n",
osd->od_svname, rc);
return ERR_PTR(rc);
}
} else if ((fid_is_llog(fid))) {
rc = -dmu_object_set_blocksize(osd->od_os, dn->dn_object,
LLOG_MIN_CHUNK_SIZE, 0,
oh->ot_tx);
if (unlikely(rc)) {
CERROR("%s: can't change blocksize: %d\n",
osd->od_svname, rc);
return ERR_PTR(rc);
}
}
return dn;
}
static dnode_t *osd_mksym(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
dnode_t *dn;
int rc;
LASSERT(S_ISLNK(la->la_mode));
rc = __osd_object_create(env, osd_obj2dev(obj), obj,
lu_object_fid(&obj->oo_dt.do_lu),
&dn, oh->ot_tx, la);
if (rc)
return ERR_PTR(rc);
return dn;
}
static dnode_t *osd_mknod(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
dnode_t *dn;
int rc;
if (S_ISCHR(la->la_mode) || S_ISBLK(la->la_mode))
la->la_valid |= LA_RDEV;
rc = __osd_object_create(env, osd_obj2dev(obj), obj,
lu_object_fid(&obj->oo_dt.do_lu),
&dn, oh->ot_tx, la);
if (rc)
return ERR_PTR(rc);
return dn;
}
typedef dnode_t *(*osd_obj_type_f)(const struct lu_env *env,
struct osd_object *obj,
struct lu_attr *la,
struct osd_thandle *oh);
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_INDEX:
result = osd_mkidx;
break;
case DFT_REGULAR:
result = osd_mkreg;
break;
case DFT_SYM:
result = osd_mksym;
break;
case DFT_NODE:
result = osd_mknod;
break;
default:
LBUG();
break;
}
return result;
}
/*
* Concurrency: @dt is write locked.
*/
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)
{
struct osd_thread_info *info = osd_oti_get(env);
struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
char *buf = info->oti_str;
struct osd_thandle *oh;
dnode_t *dn = NULL, *zdn = NULL;
uint64_t zapid, parent = 0;
int rc;
__u32 compat = 0;
ENTRY;
LASSERT(!fid_is_acct(fid));
/* concurrent create declarations should not see
* the object inconsistent (db, attr, etc).
* in regular cases acquisition should be cheap
*/
down_write(&obj->oo_guard);
if (unlikely(dt_object_exists(dt)))
GOTO(out, rc = -EEXIST);
LASSERT(osd_invariant(obj));
LASSERT(dof != NULL);
LASSERT(th != NULL);
oh = container_of(th, struct osd_thandle, ot_super);
LASSERT(obj->oo_dn == NULL);
/* to follow ZFS on-disk format we need to initialize parent dnode
* properly
*/
if (hint != NULL && hint->dah_parent != NULL &&
!dt_object_remote(hint->dah_parent))
parent = osd_dt_obj(hint->dah_parent)->oo_dn->dn_object;
/* we may fix some attributes, better do not change the source */
obj->oo_attr = *attr;
obj->oo_attr.la_size = 0;
obj->oo_attr.la_nlink = 0;
obj->oo_attr.la_valid |= LA_SIZE | LA_NLINK | LA_TYPE;
if (!(obj->oo_attr.la_valid & LA_FLAGS))
obj->oo_attr.la_flags = 0;
#ifdef ZFS_PROJINHERIT
if (osd->od_projectused_dn) {
if (!(obj->oo_attr.la_valid & LA_PROJID))
obj->oo_attr.la_projid = ZFS_DEFAULT_PROJID;
obj->oo_with_projid = 1;
}
#endif
dn = osd_create_type_f(dof->dof_type)(env, obj, &obj->oo_attr, oh);
if (IS_ERR(dn)) {
rc = PTR_ERR(dn);
dn = NULL;
GOTO(out, rc);
}
zde->zde_pad = 0;
zde->zde_dnode = dn->dn_object;
zde->zde_type = S_DT(attr->la_mode & S_IFMT);
zapid = osd_get_name_n_idx(env, osd, fid, buf,
sizeof(info->oti_str), &zdn);
if (CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY) ||
(osd->od_is_ost && CFS_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_NO_ENTRY)))
goto skip_add;
if (osd->od_is_ost && CFS_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_INVALID_ENTRY))
zde->zde_dnode++;
rc = osd_zap_add(osd, zapid, zdn, buf, 8, 1, zde, oh->ot_tx);
if (rc)
GOTO(out, rc);
skip_add:
obj->oo_dn = dn;
/* Now add in all of the "SA" attributes */
rc = osd_sa_handle_get(obj);
if (rc)
GOTO(out, rc);
rc = -nvlist_alloc(&obj->oo_sa_xattr, NV_UNIQUE_NAME, KM_SLEEP);
if (rc)
GOTO(out, rc);
/* initialize LMA */
if (fid_is_idif(fid) || (fid_is_norm(fid) && osd->od_is_ost))
compat |= LMAC_FID_ON_OST;
lustre_lma_init(lma, fid, compat, 0);
lustre_lma_swab(lma);
rc = -nvlist_add_byte_array(obj->oo_sa_xattr, XATTR_NAME_LMA,
(uchar_t *)lma, sizeof(*lma));
if (rc)
GOTO(out, rc);
/* configure new osd object */
obj->oo_parent = parent != 0 ? parent : zapid;
obj->oo_late_attr_set = 1;
rc = __osd_sa_xattr_schedule_update(env, obj, oh);
if (rc)
GOTO(out, rc);
/* XXX: oo_lma_flags */
obj->oo_dt.do_lu.lo_header->loh_attr |= obj->oo_attr.la_mode & S_IFMT;
if (likely(!fid_is_acct(lu_object_fid(&obj->oo_dt.do_lu))))
/* no body operations for accounting objects */
obj->oo_dt.do_body_ops = &osd_body_ops;
osd_idc_find_and_init(env, osd, obj);
out:
if (unlikely(rc && dn)) {
dmu_object_free(osd->od_os, dn->dn_object, oh->ot_tx);
osd_dnode_rele(dn);
obj->oo_dn = NULL;
} else if (!rc) {
obj->oo_dt.do_lu.lo_header->loh_attr |= LOHA_EXISTS;
}
up_write(&obj->oo_guard);
RETURN(rc);
}
static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
struct thandle *th)
{
osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
return osd_declare_attr_set(env, dt, NULL, th);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct osd_device *osd = osd_obj2dev(obj);
uint64_t nlink;
int rc;
ENTRY;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_sa_hdl != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
write_lock(&obj->oo_attr_lock);
nlink = ++obj->oo_attr.la_nlink;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
out:
up_read(&obj->oo_guard);
RETURN(rc);
}
static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
struct thandle *handle)
{
osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
return osd_declare_attr_set(env, dt, NULL, handle);
}
/*
* Concurrency: @dt is write locked.
*/
static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
struct thandle *handle)
{
struct osd_object *obj = osd_dt_obj(dt);
struct osd_thandle *oh;
struct osd_device *osd = osd_obj2dev(obj);
uint64_t nlink;
int rc;
ENTRY;
down_read(&obj->oo_guard);
if (unlikely(!dt_object_exists(dt) || obj->oo_destroyed))
GOTO(out, rc = -ENOENT);
LASSERT(osd_invariant(obj));
LASSERT(obj->oo_sa_hdl != NULL);
oh = container_of(handle, struct osd_thandle, ot_super);
LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
write_lock(&obj->oo_attr_lock);
nlink = --obj->oo_attr.la_nlink;
write_unlock(&obj->oo_attr_lock);
rc = osd_object_sa_update(obj, SA_ZPL_LINKS(osd), &nlink, 8, oh);
out:
up_read(&obj->oo_guard);
RETURN(rc);
}
static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
__u64 start, __u64 end)
{
struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
uint64_t txg = 0;
ENTRY;
if (osd->od_dt_dev.dd_rdonly)
RETURN(0);
txg = osd_db_dirty_txg(osd_dt_obj(dt)->oo_dn->dn_dbuf);
if (txg) {
/* the object is dirty or being synced */
if (osd_object_sync_delay_us < 0)
txg_wait_synced(dmu_objset_pool(osd->od_os), txg);
else
udelay(osd_object_sync_delay_us);
}
RETURN(0);
}
static bool osd_check_stale(struct dt_object *dt)
{
struct osd_object *obj = osd_dt_obj(dt);
CDEBUG(D_INODE, "obj %pK updated %d\n", obj, obj->oo_lmv_updated);
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 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,
};
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 const struct dt_object_operations osd_obj_otable_it_ops = {
.do_attr_get = osd_otable_it_attr_get,
.do_index_try = osd_index_try,
};
module_param(osd_object_sync_delay_us, int, 0644);
MODULE_PARM_DESC(osd_object_sync_delay_us,
"If zero or larger delay N usec instead of doing object sync");
