Viewing: osd_oi.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) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* Object Index.
*
* Author: Nikita Danilov <nikita@clusterfs.com>
*/
#define DEBUG_SUBSYSTEM S_OSD
#include <linux/module.h>
#include <lustre_compat/linux/dcache.h>
/*
* struct OBD_{ALLOC,FREE}*()
*/
#include <obd.h>
#include <obd_support.h>
/* fid_cpu_to_be() */
#include <lustre_fid.h>
#include <dt_object.h>
#include <lustre_scrub.h>
#include "osd_oi.h"
/* osd_lookup(), struct osd_thread_info */
#include "osd_internal.h"
unsigned int osd_oi_count = OSD_OI_FID_NR;
module_param(osd_oi_count, int, 0444);
MODULE_PARM_DESC(osd_oi_count, "Number of Object Index containers to be created, it's only valid for new filesystem.");
static struct dt_index_features oi_feat = {
.dif_flags = DT_IND_UPDATE,
.dif_recsize_min = sizeof(struct osd_inode_id),
.dif_recsize_max = sizeof(struct osd_inode_id),
.dif_ptrsize = 4
};
#define OSD_OI_NAME_BASE "oi.16"
static void osd_oi_table_put(struct osd_thread_info *info,
struct osd_oi **oi_table, unsigned int oi_count)
{
struct iam_container *bag;
int i;
for (i = 0; i < oi_count; i++) {
if (oi_table[i] == NULL)
continue;
LASSERT(oi_table[i]->oi_inode != NULL);
bag = &(oi_table[i]->oi_dir.od_container);
if (bag->ic_object == oi_table[i]->oi_inode)
iam_container_fini(bag);
iput(oi_table[i]->oi_inode);
oi_table[i]->oi_inode = NULL;
OBD_FREE_PTR(oi_table[i]);
oi_table[i] = NULL;
}
}
static int osd_oi_index_create_one(struct osd_thread_info *info,
struct osd_device *osd, const char *name,
struct dt_index_features *feat)
{
const struct lu_env *env = info->oti_env;
struct osd_inode_id *id = &info->oti_id;
struct buffer_head *bh;
struct inode *inode;
struct ldiskfs_dir_entry_2 *de;
struct dentry *dentry;
struct super_block *sb = osd_sb(osd);
struct inode *dir = sb->s_root->d_inode;
handle_t *jh;
int rc;
dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, NULL);
if (!IS_ERR(bh)) {
osd_id_gen(id, le32_to_cpu(de->inode), OSD_OII_NOGEN);
brelse(bh);
inode = osd_iget(info, osd, id, 0);
if (!IS_ERR(inode)) {
iput(inode);
inode = ERR_PTR(-EEXIST);
}
return PTR_ERR(inode);
}
if (osd->od_dt_dev.dd_rdonly)
RETURN(-EROFS);
jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, 100);
if (IS_ERR(jh))
return PTR_ERR(jh);
inode = ldiskfs_create_inode(jh, dir, (S_IFREG | S_IRUGO | S_IWUSR),
NULL);
if (IS_ERR(inode)) {
ldiskfs_journal_stop(jh);
return PTR_ERR(inode);
}
ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
unlock_new_inode(inode);
if (feat->dif_flags & DT_IND_VARKEY)
rc = iam_lvar_create(inode, feat->dif_keysize_max,
feat->dif_ptrsize, feat->dif_recsize_max,
jh);
else
rc = iam_lfix_create(inode, feat->dif_keysize_max,
feat->dif_ptrsize, feat->dif_recsize_max,
jh);
dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
rc = osd_ldiskfs_add_entry(info, osd, jh, dentry, inode, NULL);
ldiskfs_journal_stop(jh);
iput(inode);
return rc;
}
static struct inode *osd_oi_index_open(struct osd_thread_info *info,
struct osd_device *osd,
const char *name,
struct dt_index_features *f,
bool create)
{
struct dentry *dentry;
struct inode *inode;
int rc;
dentry = osd_lookup_noperm_unlocked(osd, &QSTR(name),
osd_sb(osd)->s_root);
if (IS_ERR(dentry))
return ERR_CAST(dentry);
if (dentry->d_inode) {
LASSERT(!is_bad_inode(dentry->d_inode));
inode = dentry->d_inode;
atomic_inc(&inode->i_count);
dput(dentry);
return inode;
}
/* create */
dput(dentry);
shrink_dcache_parent(osd_sb(osd)->s_root);
if (!create)
return ERR_PTR(-ENOENT);
rc = osd_oi_index_create_one(info, osd, name, f);
if (rc)
return ERR_PTR(rc);
dentry = osd_lookup_noperm_unlocked(osd, &QSTR(name),
osd_sb(osd)->s_root);
if (IS_ERR(dentry))
return ERR_CAST(dentry);
if (dentry->d_inode) {
LASSERT(!is_bad_inode(dentry->d_inode));
inode = dentry->d_inode;
atomic_inc(&inode->i_count);
dput(dentry);
return inode;
}
return ERR_PTR(-ENOENT);
}
/**
* Open an OI(Ojbect Index) container.
*
* \param name Name of OI container
* \param objp Pointer of returned OI
*
* \retval 0 success
* \retval -ve failure
*/
static int osd_oi_open(struct osd_thread_info *info, struct osd_device *osd,
char *name, struct osd_oi **oi_slot, bool create)
{
struct osd_directory *dir;
struct iam_container *bag;
struct inode *inode;
struct osd_oi *oi;
int rc;
ENTRY;
oi_feat.dif_keysize_min = sizeof(struct lu_fid);
oi_feat.dif_keysize_max = sizeof(struct lu_fid);
inode = osd_oi_index_open(info, osd, name, &oi_feat, create);
if (IS_ERR(inode))
RETURN(PTR_ERR(inode));
ldiskfs_set_inode_state(inode, LDISKFS_STATE_IAM);
if (!osd->od_dt_dev.dd_rdonly) {
/* 'What the @fid is' is not imporatant, because these objects
* have no OI mappings, and only are visible inside the OSD.
*/
lu_igif_build(&info->oti_fid, inode->i_ino,
inode->i_generation);
rc = osd_ea_fid_set(info, inode, &info->oti_fid,
LMAC_NOT_IN_OI, 0);
if (rc)
GOTO(out_inode, rc);
}
OBD_ALLOC_PTR(oi);
if (oi == NULL)
GOTO(out_inode, rc = -ENOMEM);
oi->oi_inode = inode;
dir = &oi->oi_dir;
bag = &dir->od_container;
rc = iam_container_init(bag, &dir->od_descr, inode);
if (rc < 0)
GOTO(out_free, rc);
rc = iam_container_setup(bag);
if (rc < 0)
GOTO(out_container, rc);
*oi_slot = oi;
RETURN(0);
out_container:
iam_container_fini(bag);
out_free:
OBD_FREE_PTR(oi);
out_inode:
iput(inode);
return rc;
}
/**
* Open OI(Object Index) table.
* If \a oi_count is zero, which means caller doesn't know how many OIs there
* will be, this function can either return 0 for new filesystem, or number
* of OIs on existed filesystem.
*
* If \a oi_count is non-zero, which means caller does know number of OIs on
* filesystem, this function should return the exactly same number on
* success, or error code in failure.
*
* \param oi_count Number of expected OI containers
* \param create Create OIs if doesn't exist
*
* \retval +ve number of opened OI containers
* \retval 0 no OI containers found
* \retval -ve failure
*/
static int
osd_oi_table_open(struct osd_thread_info *info, struct osd_device *osd,
struct osd_oi **oi_table, unsigned int oi_count, bool create)
{
struct scrub_file *sf = &osd->od_scrub.os_scrub.os_file;
int count = 0;
int rc = 0;
int i;
ENTRY;
/* NB: oi_count != 0 means that we have already created/known all OIs
* and have known exact number of OIs.
*/
LASSERT(oi_count <= OSD_OI_FID_NR_MAX);
for (i = 0; i < (oi_count != 0 ? oi_count : OSD_OI_FID_NR_MAX); i++) {
char name[sizeof(OSD_OI_NAME_BASE) + 3 * sizeof(i) + 1];
if (oi_table[i] != NULL) {
count++;
continue;
}
snprintf(name, sizeof(name), "%s.%d", OSD_OI_NAME_BASE, i);
rc = osd_oi_open(info, osd, name, &oi_table[i], create);
if (rc == 0) {
count++;
continue;
}
if (rc == -ENOENT && create == false) {
if (oi_count == 0)
RETURN(count);
rc = 0;
ldiskfs_set_bit(i, sf->sf_oi_bitmap);
continue;
}
CERROR("%s: can't open %s: rc = %d\n",
osd_dev2name(osd), name, rc);
if (oi_count > 0)
CERROR("%s: expect to open total %d OI files.\n",
osd_dev2name(osd), oi_count);
break;
}
if (rc < 0) {
osd_oi_table_put(info, oi_table, oi_count > 0 ? oi_count : i);
count = rc;
}
RETURN(count);
}
static int osd_remove_oi_one(struct osd_device *osd, struct dentry *parent,
const char *name, int namelen)
{
struct dentry *child;
int rc;
child = osd_lookup_noperm_unlocked(osd, &QSTR_LEN(name, namelen),
parent);
if (IS_ERR(child)) {
rc = PTR_ERR(child);
} else {
rc = vfs_unlink(&nop_mnt_idmap, parent->d_inode, child);
dput(child);
}
return rc == -ENOENT ? 0 : rc;
}
static int osd_remove_ois(struct osd_thread_info *info, struct osd_device *osd)
{
char name[16];
int namelen;
int rc;
int i;
if (osd->od_dt_dev.dd_rdonly)
RETURN(-EROFS);
for (i = 0; i < OSD_OI_FID_NR_MAX; i++) {
namelen = scnprintf(name, sizeof(name), "%s.%d",
OSD_OI_NAME_BASE, i);
rc = osd_remove_oi_one(osd, osd_sb(osd)->s_root, name, namelen);
if (rc != 0) {
CERROR(
"%s: fail to remove the stale OI file %s: rc = %d\n",
osd_dev2name(osd), name, rc);
return rc;
}
}
namelen = scnprintf(name, sizeof(name), "%s", OSD_OI_NAME_BASE);
rc = osd_remove_oi_one(osd, osd_sb(osd)->s_root, name, namelen);
if (rc != 0)
CERROR("%s: fail to remove the stale OI file %s: rc = %d\n",
osd_dev2name(osd), name, rc);
return rc;
}
int osd_oi_init(struct osd_thread_info *info, struct osd_device *osd,
bool restored)
{
struct lustre_scrub *scrub = &osd->od_scrub.os_scrub;
struct scrub_file *sf = &scrub->os_file;
struct osd_oi **oi;
int count;
int rc;
ENTRY;
if (unlikely((sf->sf_oi_count & (sf->sf_oi_count - 1)) != 0 ||
sf->sf_oi_count > OSD_OI_FID_NR_MAX)) {
LCONSOLE_WARN("%s: invalid OI count %u in scrub file, reset it\n",
osd_dev2name(osd), sf->sf_oi_count);
sf->sf_oi_count = 0;
}
if (restored) {
LCONSOLE_WARN("%s: reset Object Index mappings\n",
osd_dev2name(osd));
rc = osd_remove_ois(info, osd);
if (rc)
RETURN(rc);
}
OBD_ALLOC_PTR_ARRAY(oi, OSD_OI_FID_NR_MAX);
if (oi == NULL)
RETURN(-ENOMEM);
/* try to open existing multiple OIs first */
count = osd_oi_table_open(info, osd, oi, sf->sf_oi_count, false);
if (count < 0)
GOTO(out, rc = count);
if (count > 0) {
if (count == sf->sf_oi_count)
GOTO(out, rc = count);
/* Trust the counted number of OI files if it is sane */
if ((count & (count - 1)) != 0) {
LCONSOLE_WARN("%s: invalid oi count %d, remove them, then set it to %d\n",
osd_dev2name(osd), count, osd_oi_count);
osd_oi_table_put(info, oi, count);
rc = osd_remove_ois(info, osd);
if (rc)
GOTO(out, rc);
count = osd_oi_count;
}
scrub_file_reset(scrub, osd->od_uuid, SF_RECREATED);
sf->sf_oi_count = count;
goto create;
}
/* if previous failed then try found single OI from old filesystem */
rc = osd_oi_open(info, osd, OSD_OI_NAME_BASE, &oi[0], false);
if (rc == 0) { /* found single OI from old filesystem */
count = 1;
ldiskfs_clear_bit(0, sf->sf_oi_bitmap);
if (sf->sf_success_count == 0)
/* XXX: There is one corner case that if the OI_scrub
* file crashed or lost and we regard it upgrade,
* then we allow IGIF lookup to bypass OI files.
*
* The risk is that osd_fid_lookup() may found
* a wrong inode with the given IGIF especially
* when the MDT has performed file-level backup
* and restored after former upgrading from 1.8
* to 2.x. Fortunately, the osd_fid_lookup()can
* verify the inode to decrease the risk.
*/
scrub_file_reset(scrub, osd->od_uuid, SF_UPGRADE);
GOTO(out, rc = 1);
} else if (rc != -ENOENT) {
CERROR("%s: can't open %s: rc = %d\n",
osd_dev2name(osd), OSD_OI_NAME_BASE, rc);
GOTO(out, rc);
}
if (sf->sf_oi_count > 0) {
int i;
count = sf->sf_oi_count;
memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
for (i = 0; i < count; i++)
ldiskfs_set_bit(i, sf->sf_oi_bitmap);
scrub_file_reset(scrub, osd->od_uuid, SF_RECREATED);
} else {
count = sf->sf_oi_count = osd_oi_count;
}
create:
rc = scrub_file_store(info->oti_env, scrub);
if (rc < 0) {
osd_oi_table_put(info, oi, count);
GOTO(out, rc);
}
/* No OIs exist, new filesystem, create OI objects */
rc = osd_oi_table_open(info, osd, oi, count, true);
LASSERT(ergo(rc >= 0, rc == count));
GOTO(out, rc);
out:
if (rc < 0) {
OBD_FREE_PTR_ARRAY(oi, OSD_OI_FID_NR_MAX);
} else {
LASSERTF((rc & (rc - 1)) == 0, "Invalid OI count %d\n", rc);
osd->od_oi_table = oi;
osd->od_oi_count = rc;
if (sf->sf_oi_count != rc) {
sf->sf_oi_count = rc;
rc = scrub_file_store(info->oti_env, scrub);
if (rc < 0) {
osd_oi_table_put(info, oi, count);
OBD_FREE_PTR_ARRAY(oi, OSD_OI_FID_NR_MAX);
}
} else {
rc = 0;
}
}
return rc;
}
void osd_oi_fini(struct osd_thread_info *info, struct osd_device *osd)
{
if (unlikely(!osd->od_oi_table))
return;
osd_oi_table_put(info, osd->od_oi_table, osd->od_oi_count);
OBD_FREE_PTR_ARRAY(osd->od_oi_table, OSD_OI_FID_NR_MAX);
osd->od_oi_table = NULL;
}
static int osd_oi_iam_lookup(struct osd_thread_info *oti,
struct osd_oi *oi, struct dt_rec *rec,
const struct dt_key *key)
{
struct iam_container *bag;
struct iam_iterator *it = &oti->oti_idx_it;
struct iam_path_descr *ipd;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (IS_ERR(ipd))
RETURN(-ENOMEM);
/* got ipd now we can start iterator. */
iam_it_init(it, bag, 0, ipd);
rc = iam_it_get(it, (struct iam_key *)key);
if (rc > 0)
iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
iam_it_put(it);
iam_it_fini(it);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
int fid_is_on_ost(struct osd_thread_info *info, struct osd_device *osd,
const struct lu_fid *fid, enum oi_check_flags flags)
{
struct lu_seq_range *range = &info->oti_seq_range;
int rc;
ENTRY;
if (flags & OI_KNOWN_ON_OST)
RETURN(1);
if (unlikely(fid_is_local_file(fid) || fid_is_igif(fid) ||
fid_is_llog(fid)) || fid_is_name_llog(fid) ||
fid_is_quota(fid))
RETURN(0);
if (fid_is_idif(fid) || fid_is_last_id(fid))
RETURN(1);
if (!(flags & OI_CHECK_FLD))
RETURN(0);
if (osd_seq_site(osd)->ss_server_fld == NULL)
RETURN(0);
rc = osd_fld_lookup(info->oti_env, osd, fid_seq(fid), range);
if (rc != 0) {
/* During upgrade, OST FLDB might not be loaded because
* OST FLDB is not created until 2.6, so if some DNE
* filesystem upgrade from 2.5 to 2.7/2.8, they will
* not be able to find the sequence from local FLDB
* cache see fld_index_init().
*/
if (rc == -ENOENT && osd->od_is_ost)
RETURN(1);
if (rc != -ENOENT)
CERROR("%s: lookup FLD "DFID": rc = %d\n",
osd_name(osd), PFID(fid), rc);
RETURN(0);
}
if (fld_range_is_ost(range))
RETURN(1);
RETURN(0);
}
static int __osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
const struct lu_fid *fid, struct osd_inode_id *id)
{
struct lu_fid *oi_fid = &info->oti_fid2;
int rc;
fid_cpu_to_be(oi_fid, fid);
rc = osd_oi_iam_lookup(info, osd_fid2oi(osd, fid), (struct dt_rec *)id,
(const struct dt_key *)oi_fid);
if (rc > 0) {
osd_id_unpack(id, id);
rc = 0;
} else if (rc == 0) {
rc = -ENOENT;
}
return rc;
}
int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
const struct lu_fid *fid, struct osd_inode_id *id,
enum oi_check_flags flags)
{
if (unlikely(fid_is_last_id(fid)))
return osd_obj_spec_lookup(info, osd, fid, id, flags);
if (fid_is_llog(fid) || fid_is_on_ost(info, osd, fid, flags))
return osd_obj_map_lookup(info, osd, fid, id);
if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE)) {
int rc;
if (fid_is_fs_root(fid)) {
osd_id_gen(id, osd_sb(osd)->s_root->d_inode->i_ino,
osd_sb(osd)->s_root->d_inode->i_generation);
return 0;
}
if (unlikely(fid_is_acct(fid)))
return osd_acct_obj_lookup(info, osd, fid, id);
/* For other special FIDs, try OI first, then do spec lookup */
rc = __osd_oi_lookup(info, osd, fid, id);
if (rc == -ENOENT)
return osd_obj_spec_lookup(info, osd, fid, id, flags);
return rc;
}
if (!osd->od_igif_inoi && fid_is_igif(fid)) {
osd_id_gen(id, lu_igif_ino(fid), lu_igif_gen(fid));
return 0;
}
return __osd_oi_lookup(info, osd, fid, id);
}
static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
const struct dt_rec *rec, const struct dt_key *key,
handle_t *th, bool insert)
{
struct iam_container *bag;
struct iam_path_descr *ipd;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
dquot_initialize(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
LASSERT(th != NULL);
LASSERT(th->h_transaction != NULL);
if (insert)
rc = iam_insert(th, bag, (const struct iam_key *)key,
(const struct iam_rec *)rec, ipd);
else
rc = iam_update(th, bag, (const struct iam_key *)key,
(const struct iam_rec *)rec, ipd);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
const struct lu_fid *fid, const struct osd_inode_id *id,
handle_t *th, enum oi_check_flags flags, bool *exist)
{
struct lu_fid *oi_fid = &info->oti_fid2;
struct osd_inode_id *oi_id = &info->oti_id2;
int rc = 0;
bool locked = !!(flags & OI_LOCKED);
CDEBUG(D_INODE, "insert OI for "DFID"\n", PFID(fid));
if (unlikely(fid_is_last_id(fid)))
return osd_obj_spec_insert(info, osd, fid, id, th, locked);
if (fid_is_llog(fid) || fid_is_on_ost(info, osd, fid, flags))
return osd_obj_map_insert(info, osd, fid, id, th);
fid_cpu_to_be(oi_fid, fid);
osd_id_pack(oi_id, id);
rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
(const struct dt_rec *)oi_id,
(const struct dt_key *)oi_fid, th, true);
if (rc != 0) {
struct inode *inode;
struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
if (rc != -EEXIST)
return rc;
rc = osd_oi_lookup(info, osd, fid, oi_id, 0);
if (rc != 0)
return rc;
if (unlikely(osd_id_eq(id, oi_id)))
return 1;
/* Check whether the mapping for oi_id is valid or not. */
inode = osd_iget(info, osd, oi_id, 0);
if (IS_ERR(inode)) {
rc = PTR_ERR(inode);
if (rc == -ENOENT || rc == -ESTALE)
goto update;
return rc;
}
rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
&info->oti_ost_attrs);
iput(inode);
if (rc == -ENODATA)
goto update;
if (rc != 0)
return rc;
if (!(lma->lma_compat & LMAC_NOT_IN_OI) &&
lu_fid_eq(fid, &lma->lma_self_fid)) {
CERROR(
"%s: the FID "DFID" is used by two objects: %u/%u %u/%u\n",
osd_dev2name(osd), PFID(fid), oi_id->oii_ino,
oi_id->oii_gen, id->oii_ino, id->oii_gen);
return -EEXIST;
}
update:
osd_id_pack(oi_id, id);
rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
(const struct dt_rec *)oi_id,
(const struct dt_key *)oi_fid, th,
false);
if (rc != 0)
return rc;
if (exist != NULL)
*exist = true;
}
if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
rc = osd_obj_spec_insert(info, osd, fid, id, th, locked);
return rc;
}
static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
const struct dt_key *key, handle_t *th)
{
struct iam_container *bag;
struct iam_path_descr *ipd;
int rc;
ENTRY;
LASSERT(oi);
LASSERT(oi->oi_inode);
dquot_initialize(oi->oi_inode);
bag = &oi->oi_dir.od_container;
ipd = osd_idx_ipd_get(oti->oti_env, bag);
if (unlikely(ipd == NULL))
RETURN(-ENOMEM);
LASSERT(th != NULL);
LASSERT(th->h_transaction != NULL);
rc = iam_delete(th, bag, (const struct iam_key *)key, ipd);
osd_ipd_put(oti->oti_env, bag, ipd);
LINVRNT(osd_invariant(obj));
RETURN(rc);
}
int osd_oi_delete(struct osd_thread_info *info,
struct osd_device *osd, const struct lu_fid *fid,
handle_t *th, enum oi_check_flags flags)
{
struct lu_fid *oi_fid = &info->oti_fid2;
CDEBUG(D_INODE, "delete OI for "DFID"\n", PFID(fid));
/* clear idmap cache */
if (lu_fid_eq(fid, &info->oti_cache.oic_fid))
fid_zero(&info->oti_cache.oic_fid);
if (fid_is_last_id(fid))
return 0;
if (fid_is_llog(fid) || fid_is_on_ost(info, osd, fid, flags))
return osd_obj_map_delete(info, osd, fid, th);
fid_cpu_to_be(oi_fid, fid);
return osd_oi_iam_delete(info, osd_fid2oi(osd, fid),
(const struct dt_key *)oi_fid, th);
}
int osd_oi_update(struct osd_thread_info *info, struct osd_device *osd,
const struct lu_fid *fid, const struct osd_inode_id *id,
handle_t *th, enum oi_check_flags flags)
{
struct lu_fid *oi_fid = &info->oti_fid2;
struct osd_inode_id *oi_id = &info->oti_id2;
int rc = 0;
bool locked = !!(flags & OI_LOCKED);
CDEBUG(D_INODE, "update OI for "DFID"\n", PFID(fid));
if (unlikely(fid_is_last_id(fid)))
return osd_obj_spec_update(info, osd, fid, id, th, locked);
if (fid_is_llog(fid) || fid_is_on_ost(info, osd, fid, flags))
return osd_obj_map_update(info, osd, fid, id, th);
fid_cpu_to_be(oi_fid, fid);
osd_id_pack(oi_id, id);
rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
(const struct dt_rec *)oi_id,
(const struct dt_key *)oi_fid, th, false);
if (rc != 0)
return rc;
if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
rc = osd_obj_spec_update(info, osd, fid, id, th, locked);
return rc;
}
int osd_oi_mod_init(void)
{
if (osd_oi_count == 0 || osd_oi_count > OSD_OI_FID_NR_MAX)
osd_oi_count = OSD_OI_FID_NR;
if ((osd_oi_count & (osd_oi_count - 1)) != 0) {
LCONSOLE_WARN("Round up oi_count %d to power2 %d\n",
osd_oi_count, size_roundup_power2(osd_oi_count));
osd_oi_count = size_roundup_power2(osd_oi_count);
}
return 0;
}
