*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_OSD
-#include <lustre_ver.h>
#include <libcfs/libcfs.h>
#include <obd_support.h>
#include <lustre_net.h>
#include <sys/dsl_prop.h>
#include <sys/sa_impl.h>
#include <sys/txg.h>
+#include <lustre_scrub.h>
#define OSD_OI_FID_NR (1UL << 7)
-#define OSD_OI_FID_NR_MAX (1UL << OSD_OI_FID_OID_BITS_MAX)
unsigned int osd_oi_count = OSD_OI_FID_NR;
};
static const struct named_oid oids[] = {
- { LAST_RECV_OID, LAST_RCVD },
- { OFD_LAST_GROUP_OID, "LAST_GROUP" },
- { LLOG_CATALOGS_OID, "CATALOGS" },
- { MGS_CONFIGS_OID, NULL /*MOUNT_CONFIGS_DIR*/ },
- { FID_SEQ_SRV_OID, "seq_srv" },
- { FID_SEQ_CTL_OID, "seq_ctl" },
- { FLD_INDEX_OID, "fld" },
- { MDD_LOV_OBJ_OID, LOV_OBJID },
- { OFD_HEALTH_CHECK_OID, HEALTH_CHECK },
- { ACCT_USER_OID, "acct_usr_inode" },
- { ACCT_GROUP_OID, "acct_grp_inode" },
- { 0, NULL }
+ { .oid = LAST_RECV_OID, .name = LAST_RCVD },
+ { .oid = OFD_LAST_GROUP_OID, .name = "LAST_GROUP" },
+ { .oid = LLOG_CATALOGS_OID, .name = "CATALOGS" },
+ { .oid = MGS_CONFIGS_OID, /*MOUNT_CONFIGS_DIR*/ },
+ { .oid = FID_SEQ_SRV_OID, .name = "seq_srv" },
+ { .oid = FID_SEQ_CTL_OID, .name = "seq_ctl" },
+ { .oid = FLD_INDEX_OID, .name = "fld" },
+ { .oid = MDD_LOV_OBJ_OID, .name = LOV_OBJID },
+ { .oid = OFD_HEALTH_CHECK_OID, .name = HEALTH_CHECK },
+ { .oid = REPLY_DATA_OID, .name = REPLY_DATA },
+ { .oid = MDD_LOV_OBJ_OSEQ, .name = LOV_OBJSEQ },
+ { .oid = BATCHID_COMMITTED_OID, .name = "BATCHID" },
+ { .oid = 0 }
};
+static inline bool fid_is_objseq(const struct lu_fid *fid)
+{
+ return fid->f_seq == FID_SEQ_LOCAL_FILE &&
+ fid->f_oid == MDD_LOV_OBJ_OSEQ;
+}
+
+static inline bool fid_is_batchid(const struct lu_fid *fid)
+{
+ return fid->f_seq == FID_SEQ_LOCAL_FILE &&
+ fid->f_oid == BATCHID_COMMITTED_OID;
+}
+
static char *oid2name(const unsigned long oid)
{
int i = 0;
if (rc >= sizeof(oi->oi_name))
return -E2BIG;
- rc = 0;
oi->oi_zapid = zde->zde_dnode;
- return rc;
+ return 0;
}
-/**
- * Create a new OI with the given name.
- */
-static int
-osd_oi_create(const struct lu_env *env, struct osd_device *o,
- uint64_t parent, const char *name, uint64_t *child)
+static int osd_obj_create(const struct lu_env *env, struct osd_device *o,
+ uint64_t parent, const char *name, uint64_t *child,
+ const struct lu_fid *fid, bool isdir)
{
- struct zpl_direntry *zde = &osd_oti_get(env)->oti_zde.lzd_reg;
- struct lu_attr *la = &osd_oti_get(env)->oti_la;
- dmu_buf_t *db;
- dmu_tx_t *tx;
- int rc;
+ struct osd_thread_info *info = osd_oti_get(env);
+ struct zpl_direntry *zde = &info->oti_zde.lzd_reg;
+ struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+ struct lu_attr *la = &info->oti_la;
+ sa_handle_t *sa_hdl = NULL;
+ nvlist_t *nvbuf = NULL;
+ dmu_tx_t *tx;
+ uint64_t oid;
+ __u32 compat = LMAC_NOT_IN_OI;
+ int rc;
+ ENTRY;
- /* verify it doesn't already exist */
- rc = -zap_lookup(o->od_os, parent, name, 8, 1, (void *)zde);
- if (rc == 0)
- return -EEXIST;
+ if (o->od_dt_dev.dd_rdonly)
+ RETURN(-EROFS);
+
+ memset(la, 0, sizeof(*la));
+ la->la_valid = LA_MODE | LA_UID | LA_GID;
+ la->la_mode = S_IRUGO | S_IWUSR | (isdir ? S_IXUGO | S_IFDIR : S_IFREG);
+
+ if (fid) {
+ rc = -nvlist_alloc(&nvbuf, NV_UNIQUE_NAME, KM_SLEEP);
+ if (rc)
+ RETURN(rc);
+
+ if (o->od_is_ost)
+ compat |= LMAC_FID_ON_OST;
+ lustre_lma_init(lma, fid, compat, 0);
+ lustre_lma_swab(lma);
+ rc = -nvlist_add_byte_array(nvbuf, XATTR_NAME_LMA,
+ (uchar_t *)lma, sizeof(*lma));
+ if (rc)
+ GOTO(out, rc);
+ }
/* create fid-to-dnode index */
tx = dmu_tx_create(o->od_os);
- if (tx == NULL)
- return -ENOMEM;
+ if (!tx)
+ GOTO(out, rc = -ENOMEM);
- dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, 1, NULL);
+ dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL);
dmu_tx_hold_bonus(tx, parent);
dmu_tx_hold_zap(tx, parent, TRUE, name);
- LASSERT(tx->tx_objset->os_sa);
dmu_tx_hold_sa_create(tx, ZFS_SA_BASE_ATTR_SIZE);
-
rc = -dmu_tx_assign(tx, TXG_WAIT);
if (rc) {
dmu_tx_abort(tx);
- return rc;
+ GOTO(out, rc);
}
- la->la_valid = LA_MODE | LA_UID | LA_GID;
- la->la_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
- la->la_uid = la->la_gid = 0;
- __osd_zap_create(env, o, &db, tx, la, parent, 0);
+ if (isdir)
+ oid = osd_zap_create_flags(o->od_os, 0, ZAP_FLAG_HASH64,
+ DMU_OT_DIRECTORY_CONTENTS,
+ 14, DN_MAX_INDBLKSHIFT, 0, tx);
+ else
+ oid = osd_dmu_object_alloc(o->od_os, DMU_OTN_UINT8_METADATA,
+ 0, 0, tx);
+ rc = -sa_handle_get(o->od_os, oid, NULL, SA_HDL_PRIVATE, &sa_hdl);
+ if (rc)
+ GOTO(commit, rc);
- zde->zde_dnode = db->db_object;
- zde->zde_pad = 0;
- zde->zde_type = IFTODT(S_IFDIR);
+ rc = __osd_attr_init(env, o, NULL, sa_hdl, tx, la, parent, nvbuf);
+ sa_handle_destroy(sa_hdl);
+ if (rc)
+ GOTO(commit, rc);
+ zde->zde_dnode = oid;
+ zde->zde_pad = 0;
+ zde->zde_type = S_DT(isdir ? S_IFDIR : S_IFREG);
rc = -zap_add(o->od_os, parent, name, 8, 1, (void *)zde, tx);
- dmu_tx_commit(tx);
-
- *child = db->db_object;
- sa_buf_rele(db, osd_obj_tag);
+ GOTO(commit, rc);
+commit:
+ if (rc)
+ dmu_object_free(o->od_os, oid, tx);
+ else
+ *child = oid;
+ dmu_tx_commit(tx);
+out:
+ if (nvbuf)
+ nvlist_free(nvbuf);
return rc;
}
if (rc == 0)
*child = oi.oi_zapid;
else if (rc == -ENOENT)
- rc = osd_oi_create(env, o, parent, name, child);
+ rc = osd_obj_create(env, o, parent, name, child, NULL, true);
+
+ return rc;
+}
+
+int osd_obj_find_or_create(const struct lu_env *env, struct osd_device *o,
+ uint64_t parent, const char *name, uint64_t *child,
+ const struct lu_fid *fid, bool isdir)
+{
+ struct osd_oi oi;
+ int rc;
+
+ rc = osd_oi_lookup(env, o, parent, name, &oi);
+ if (!rc)
+ *child = oi.oi_zapid;
+ else if (rc == -ENOENT)
+ rc = osd_obj_create(env, o, parent, name, child, fid, isdir);
return rc;
}
return 0;
}
- LASSERT(ss != NULL);
+ /* The seq_server_site may be NOT ready during initial OI scrub */
+ if (unlikely(!ss || !ss->ss_server_fld ||
+ !ss->ss_server_fld->lsf_cache))
+ return -ENOENT;
+
fld_range_set_any(range);
/* OSD will only do local fld lookup */
return fld_local_lookup(env, ss->ss_server_fld, seq, range);
RETURN(1);
if (unlikely(fid_is_local_file(fid) || fid_is_llog(fid)) ||
- fid_is_name_llog(fid) || fid_is_quota(fid))
+ fid_is_name_llog(fid) || fid_is_quota(fid) ||
+ fid_is_igif(fid))
RETURN(0);
rc = osd_fld_lookup(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: "DFID" lookup failed: rc = %d\n",
osd_name(osd), PFID(fid), rc);
/* Init subdir count to be 32, but each seq can have
* different subdir count */
osd_seq->os_subdir_count = OSD_OST_MAP_SIZE;
- OBD_ALLOC(osd_seq->os_compat_dirs,
- sizeof(uint64_t) * osd_seq->os_subdir_count);
+ OBD_ALLOC_PTR_ARRAY(osd_seq->os_compat_dirs, osd_seq->os_subdir_count);
if (osd_seq->os_compat_dirs == NULL)
GOTO(out, rc = -ENOMEM);
oi.oi_zapid = osd->od_O_id;
sprintf(seq_name, (fid_seq_is_rsvd(seq) ||
- fid_seq_is_mdt0(seq)) ? LPU64 : LPX64i,
+ fid_seq_is_mdt0(seq)) ? "%llu" : "%llx",
fid_seq_is_idif(seq) ? 0 : seq);
rc = osd_oi_find_or_create(env, osd, oi.oi_zapid, seq_name, &odb);
GOTO(out, rc);
}
+ osd_seq->os_oid = odb;
for (i = 0; i < OSD_OST_MAP_SIZE; i++) {
sprintf(key, "d%d", i);
rc = osd_oi_find_or_create(env, osd, odb, key, &sdb);
up(&seq_list->osl_seq_init_sem);
if (rc != 0) {
if (osd_seq != NULL && osd_seq->os_compat_dirs != NULL)
- OBD_FREE(osd_seq->os_compat_dirs,
- sizeof(uint64_t) * osd_seq->os_subdir_count);
+ OBD_FREE_PTR_ARRAY(osd_seq->os_compat_dirs,
+ osd_seq->os_subdir_count);
if (osd_seq != NULL)
OBD_FREE_PTR(osd_seq);
osd_seq = ERR_PTR(rc);
RETURN(osd_seq);
}
-/*
- * objects w/o a natural reference (unlike a file on a MDS)
- * are put under a special hierarchy /O/<seq>/d0..dXX
- * this function returns a directory specific fid belongs to
- */
static uint64_t
-osd_get_idx_for_ost_obj(const struct lu_env *env, struct osd_device *osd,
- const struct lu_fid *fid, char *buf)
+osd_get_idx_for_ost_obj_compat(const struct lu_env *env, struct osd_device *osd,
+ const struct lu_fid *fid, char *buf, int bufsize)
{
struct osd_seq *osd_seq;
unsigned long b;
b = id % OSD_OST_MAP_SIZE;
LASSERT(osd_seq->os_compat_dirs[b]);
- sprintf(buf, LPU64, id);
+ if (buf)
+ snprintf(buf, bufsize, "%llu", id);
return osd_seq->os_compat_dirs[b];
}
-/* XXX: f_ver is not counted, but may differ too */
-static void osd_fid2str(char *buf, const struct lu_fid *fid)
+/*
+ * objects w/o a natural reference (unlike a file on a MDS)
+ * are put under a special hierarchy /O/<seq>/d0..dXX
+ * this function returns a directory specific fid belongs to
+ */
+static uint64_t
+osd_get_idx_for_ost_obj(const struct lu_env *env, struct osd_device *osd,
+ const struct lu_fid *fid, char *buf, int bufsize)
{
- sprintf(buf, DFID_NOBRACE, PFID(fid));
+ struct osd_seq *osd_seq;
+ unsigned long b;
+ u64 id;
+ int rc;
+
+ osd_seq = osd_find_or_add_seq(env, osd, fid_seq(fid));
+ if (IS_ERR(osd_seq)) {
+ CERROR("%s: Can not find seq group "DFID"\n", osd_name(osd),
+ PFID(fid));
+ return PTR_ERR(osd_seq);
+ }
+
+ if (fid_is_last_id(fid)) {
+ if (buf)
+ snprintf(buf, bufsize, "LAST_ID");
+
+ return osd_seq->os_oid;
+ }
+
+ rc = fid_to_ostid(fid, &osd_oti_get(env)->oti_ostid);
+ LASSERT(rc == 0); /* we should not get here with IGIF */
+
+ id = ostid_id(&osd_oti_get(env)->oti_ostid);
+ b = id % OSD_OST_MAP_SIZE;
+ LASSERT(osd_seq->os_compat_dirs[b]);
+
+ if (buf)
+ snprintf(buf, bufsize, "%llu", id);
+
+ return osd_seq->os_compat_dirs[b];
}
/*
*/
static uint64_t
osd_get_idx_for_fid(struct osd_device *osd, const struct lu_fid *fid,
- char *buf)
+ char *buf, dnode_t **zdn, int bufsize)
{
struct osd_oi *oi;
- LASSERT(osd->od_oi_table != NULL);
- oi = osd->od_oi_table[fid_seq(fid) & (osd->od_oi_count - 1)];
- osd_fid2str(buf, fid);
+ oi = osd_fid2oi(osd, fid);
+ if (buf)
+ osd_fid2str(buf, fid, bufsize);
+ if (zdn)
+ *zdn = oi->oi_dn;
return oi->oi_zapid;
}
+uint64_t
+osd_get_name_n_idx_compat(const struct lu_env *env, struct osd_device *osd,
+ const struct lu_fid *fid, char *buf, int bufsize,
+ dnode_t **zdn)
+{
+ uint64_t zapid;
+
+ LASSERT(fid);
+ LASSERT(!fid_is_acct(fid));
+
+ if (zdn != NULL)
+ *zdn = NULL;
+
+ if (fid_is_echo(fid) || fid_is_on_ost(env, osd, fid)) {
+ zapid = osd_get_idx_for_ost_obj_compat(env, osd, fid,
+ buf, bufsize);
+ } else if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE)) {
+ /* special objects with fixed known fids get their name */
+ char *name = oid2name(fid_oid(fid));
+
+ if (name) {
+ zapid = osd->od_root;
+ if (buf)
+ strncpy(buf, name, bufsize);
+ } else {
+ zapid = osd_get_idx_for_fid(osd, fid, buf, NULL,
+ bufsize);
+ }
+ } else {
+ zapid = osd_get_idx_for_fid(osd, fid, buf, zdn, bufsize);
+ }
+
+ return zapid;
+}
+
uint64_t osd_get_name_n_idx(const struct lu_env *env, struct osd_device *osd,
- const struct lu_fid *fid, char *buf)
+ const struct lu_fid *fid, char *buf, int bufsize,
+ dnode_t **zdn)
{
uint64_t zapid;
LASSERT(fid);
- LASSERT(buf);
+ LASSERT(!fid_is_acct(fid));
- if (fid_is_on_ost(env, osd, fid) == 1 || fid_seq(fid) == FID_SEQ_ECHO) {
- zapid = osd_get_idx_for_ost_obj(env, osd, fid, buf);
+ if (zdn != NULL)
+ *zdn = NULL;
+
+ if (fid_is_echo(fid) || fid_is_last_id(fid) ||
+ fid_is_on_ost(env, osd, fid)) {
+ zapid = osd_get_idx_for_ost_obj(env, osd, fid, buf, bufsize);
} else if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE)) {
/* special objects with fixed known fids get their name */
char *name = oid2name(fid_oid(fid));
if (name) {
zapid = osd->od_root;
- strcpy(buf, name);
- if (fid_is_acct(fid))
- zapid = MASTER_NODE_OBJ;
+ if (buf)
+ strncpy(buf, name, bufsize);
} else {
- zapid = osd_get_idx_for_fid(osd, fid, buf);
+ zapid = osd_get_idx_for_fid(osd, fid, buf, NULL,
+ bufsize);
}
} else {
- zapid = osd_get_idx_for_fid(osd, fid, buf);
+ zapid = osd_get_idx_for_fid(osd, fid, buf, zdn, bufsize);
}
return zapid;
{
struct osd_thread_info *info = osd_oti_get(env);
char *buf = info->oti_buf;
- uint64_t zapid;
+ dnode_t *zdn;
+ uint64_t zapid;
int rc = 0;
ENTRY;
- if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOENT))
+ if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
RETURN(-ENOENT);
- if (unlikely(fid_is_acct(fid))) {
- if (fid_oid(fid) == ACCT_USER_OID)
- *oid = dev->od_iusr_oid;
- else
- *oid = dev->od_igrp_oid;
- } else if (unlikely(fid_is_fs_root(fid))) {
+ LASSERT(!fid_is_acct(fid));
+
+ if (unlikely(fid_is_fs_root(fid))) {
*oid = dev->od_root;
} else {
- zapid = osd_get_name_n_idx(env, dev, fid, buf);
+ zapid = osd_get_name_n_idx(env, dev, fid, buf,
+ sizeof(info->oti_buf), &zdn);
+ rc = osd_zap_lookup(dev, zapid, zdn, buf,
+ 8, 1, &info->oti_zde);
+ if (rc == -ENOENT) {
+ if (unlikely(fid_is_last_id(fid))) {
+ zapid = osd_get_name_n_idx_compat(env, dev, fid,
+ buf, sizeof(info->oti_buf), &zdn);
+ rc = osd_zap_lookup(dev, zapid, zdn, buf,
+ 8, 1, &info->oti_zde);
+ } else if (fid_is_objseq(fid) || fid_is_batchid(fid)) {
+ zapid = osd_get_idx_for_fid(dev, fid,
+ buf, NULL, sizeof(info->oti_buf));
+ rc = osd_zap_lookup(dev, zapid, zdn, buf,
+ 8, 1, &info->oti_zde);
+ }
+ }
- rc = -zap_lookup(dev->od_os, zapid, buf,
- 8, 1, &info->oti_zde);
if (rc)
RETURN(rc);
*oid = info->oti_zde.lzd_reg.zde_dnode;
}
if (rc == 0)
- dmu_prefetch(dev->od_os, *oid, 0, 0);
+ osd_dmu_prefetch(dev->od_os, *oid, 0, 0, 0,
+ ZIO_PRIORITY_ASYNC_READ);
RETURN(rc);
}
oi = o->od_oi_table[key];
if (oi) {
+ if (oi->oi_dn)
+ osd_dnode_rele(oi->oi_dn);
OBD_FREE_PTR(oi);
o->od_oi_table[key] = NULL;
}
}
o->od_oi_table[key] = oi;
+ __osd_obj2dnode(o->od_os, oi->oi_zapid, &oi->oi_dn);
return 0;
}
/**
* Determine if the type and number of OIs used by this file system.
*/
-static int
-osd_oi_probe(const struct lu_env *env, struct osd_device *o, int *count)
+static int osd_oi_probe(const struct lu_env *env, struct osd_device *o)
{
- uint64_t root_oid = o->od_root;
- struct osd_oi oi;
- char name[16];
- int rc;
+ struct lustre_scrub *scrub = &o->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ struct osd_oi oi;
+ char name[16];
+ int max = sf->sf_oi_count > 0 ? sf->sf_oi_count : OSD_OI_FID_NR_MAX;
+ int count;
+ int rc;
ENTRY;
/*
* The only safeguard is that we know the number of OIs must be a
* power of two and this is checked for basic sanity.
*/
- for (*count = 0; *count < OSD_OI_FID_NR_MAX; (*count)++) {
- sprintf(name, "%s.%d", DMU_OSD_OI_NAME_BASE, *count);
- rc = osd_oi_lookup(env, o, root_oid, name, &oi);
- if (rc == 0)
+ for (count = 0; count < max; count++) {
+ snprintf(name, sizeof(name) - 1, "%s.%d",
+ DMU_OSD_OI_NAME_BASE, count);
+ rc = osd_oi_lookup(env, o, o->od_root, name, &oi);
+ if (!rc)
continue;
if (rc == -ENOENT) {
- if (*count == 0)
- break;
+ if (sf->sf_oi_count == 0)
+ RETURN(count);
- if ((*count & (*count - 1)) != 0)
- RETURN(-EDOM);
-
- RETURN(0);
+ zfs_set_bit(count, sf->sf_oi_bitmap);
+ continue;
}
- RETURN(rc);
+ if (rc)
+ RETURN(rc);
}
- /*
- * No OIs exist, this must be a new filesystem.
- */
- *count = 0;
-
- RETURN(0);
-}
-
-static void osd_ost_seq_init(const struct lu_env *env, struct osd_device *osd)
-{
- struct osd_seq_list *osl = &osd->od_seq_list;
-
- INIT_LIST_HEAD(&osl->osl_seq_list);
- rwlock_init(&osl->osl_seq_list_lock);
- sema_init(&osl->osl_seq_init_sem, 1);
+ RETURN(count);
}
static void osd_ost_seq_fini(const struct lu_env *env, struct osd_device *osd)
list_for_each_entry_safe(osd_seq, tmp, &osl->osl_seq_list,
os_seq_list) {
list_del(&osd_seq->os_seq_list);
- OBD_FREE(osd_seq->os_compat_dirs,
- sizeof(uint64_t) * osd_seq->os_subdir_count);
+ OBD_FREE_PTR_ARRAY(osd_seq->os_compat_dirs,
+ osd_seq->os_subdir_count);
OBD_FREE(osd_seq, sizeof(*osd_seq));
}
write_unlock(&osl->osl_seq_list_lock);
-
- return;
}
/**
static int
osd_oi_init_compat(const struct lu_env *env, struct osd_device *o)
{
- uint64_t odb, sdb;
- int rc;
+ uint64_t sdb;
+ int rc;
ENTRY;
rc = osd_oi_find_or_create(env, o, o->od_root, "O", &sdb);
- if (rc)
- RETURN(rc);
-
- o->od_O_id = sdb;
-
- osd_ost_seq_init(env, o);
- /* Create on-disk indexes to maintain per-UID/GID inode usage.
- * Those new indexes are created in the top-level ZAP outside the
- * namespace in order not to confuse ZPL which might interpret those
- * indexes as directories and assume the values are object IDs */
- rc = osd_oi_find_or_create(env, o, MASTER_NODE_OBJ,
- oid2name(ACCT_USER_OID), &odb);
- if (rc)
- RETURN(rc);
- o->od_iusr_oid = odb;
-
- rc = osd_oi_find_or_create(env, o, MASTER_NODE_OBJ,
- oid2name(ACCT_GROUP_OID), &odb);
- if (rc)
- RETURN(rc);
- o->od_igrp_oid = odb;
+ if (!rc)
+ o->od_O_id = sdb;
RETURN(rc);
}
-static char *root2convert = "ROOT";
-/*
- * due to DNE requirements we have to change sequence of /ROOT object
- * so that it doesn't belong to the local sequence FID_SEQ_LOCAL_FILE
- * but a normal sequence living on MDS#0
- * this is the sole purpose of this function.
- *
- * This is only needed for pre-production 2.4 ZFS filesystems, and
- * can be removed in the future.
- */
-int osd_convert_root_to_new_seq(const struct lu_env *env, struct osd_device *o)
-{
- struct luz_direntry *lze = &osd_oti_get(env)->oti_zde;
- char *buf = osd_oti_get(env)->oti_str;
- struct lu_fid newfid;
- uint64_t zapid;
- dmu_tx_t *tx = NULL;
- int rc;
+static int
+osd_oi_init_index_backup(const struct lu_env *env, struct osd_device *o)
+{
+ struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
+ int rc;
ENTRY;
- /* ignore OSTs */
- if (strstr(o->od_svname, "MDT") == NULL)
- RETURN(0);
-
- /* lookup /ROOT */
- rc = -zap_lookup(o->od_os, o->od_root, root2convert, 8,
- sizeof(*lze) / 8, (void *)lze);
- /* doesn't exist or let actual user to handle the error */
- if (rc)
- RETURN(0);
-
- CDEBUG(D_OTHER, "%s: /ROOT -> "DFID" -> "LPU64"\n", o->od_svname,
- PFID(&lze->lzd_fid), (long long int) lze->lzd_reg.zde_dnode);
-
- /* already right one? */
- if (fid_seq(&lze->lzd_fid) == FID_SEQ_ROOT)
- return 0;
-
- tx = dmu_tx_create(o->od_os);
- if (tx == NULL)
- return -ENOMEM;
-
- dmu_tx_hold_bonus(tx, o->od_root);
-
- /* declare delete/insert of the name */
- dmu_tx_hold_zap(tx, o->od_root, TRUE, root2convert);
- dmu_tx_hold_zap(tx, o->od_root, FALSE, root2convert);
-
- /* declare that we'll remove object from fid-dnode mapping */
- zapid = osd_get_name_n_idx(env, o, &lze->lzd_fid, buf);
- dmu_tx_hold_bonus(tx, zapid);
- dmu_tx_hold_zap(tx, zapid, FALSE, buf);
-
- /* declare that we'll add object to fid-dnode mapping */
- newfid.f_seq = FID_SEQ_ROOT;
- newfid.f_oid = FID_OID_ROOT;
- newfid.f_ver = 0;
- zapid = osd_get_name_n_idx(env, o, &newfid, buf);
- dmu_tx_hold_bonus(tx, zapid);
- dmu_tx_hold_zap(tx, zapid, TRUE, buf);
-
- rc = -dmu_tx_assign(tx, TXG_WAIT);
- if (rc)
- GOTO(err, rc);
-
- rc = -zap_remove(o->od_os, o->od_root, root2convert, tx);
- if (rc)
- GOTO(err, rc);
-
- /* remove from OI */
- zapid = osd_get_name_n_idx(env, o, &lze->lzd_fid, buf);
- rc = -zap_remove(o->od_os, zapid, buf, tx);
- if (rc)
- GOTO(err, rc);
-
- lze->lzd_fid = newfid;
- rc = -zap_add(o->od_os, o->od_root, root2convert,
- 8, sizeof(*lze) / 8, (void *)lze, tx);
- if (rc)
- GOTO(err, rc);
-
- /* add to OI with the new fid */
- zapid = osd_get_name_n_idx(env, o, &newfid, buf);
- rc = -zap_add(o->od_os, zapid, buf, 8, 1, &lze->lzd_reg, tx);
- if (rc)
- GOTO(err, rc);
-
-
- /* LMA will be updated in mdd_compat_fixes */
- dmu_tx_commit(tx);
+ lu_local_obj_fid(fid, INDEX_BACKUP_OID);
+ rc = osd_obj_find_or_create(env, o, o->od_root, INDEX_BACKUP_DIR,
+ &o->od_index_backup_id, fid, true);
RETURN(rc);
+}
-err:
- if (tx)
- dmu_tx_abort(tx);
- CERROR("%s: can't convert to new fid: rc = %d\n", o->od_svname, rc);
- RETURN(rc);
+static void
+osd_oi_init_remote_parent(const struct lu_env *env, struct osd_device *o)
+{
+ uint64_t sdb;
+ int rc;
+ ENTRY;
+
+ if (o->od_is_ost) {
+ o->od_remote_parent_dir = ZFS_NO_OBJECT;
+ } else {
+ /* Remote parent only used for cross-MDT objects,
+ * it is usless for single MDT case or under read
+ * only mode. So ignore the failure. */
+ rc = osd_oi_find_or_create(env, o, o->od_root,
+ REMOTE_PARENT_DIR, &sdb);
+ if (!rc)
+ o->od_remote_parent_dir = sdb;
+ else
+ o->od_remote_parent_dir = ZFS_NO_OBJECT;
+ }
}
/**
*/
int osd_oi_init(const struct lu_env *env, struct osd_device *o)
{
- char *key = osd_oti_get(env)->oti_buf;
- int i, rc, count = 0;
+ struct lustre_scrub *scrub = &o->od_scrub;
+ struct scrub_file *sf = &scrub->os_file;
+ char *key = osd_oti_get(env)->oti_buf;
+ uint64_t sdb;
+ int i, rc, count;
ENTRY;
- rc = osd_oi_probe(env, o, &count);
+ LASSERTF((sf->sf_oi_count & (sf->sf_oi_count - 1)) == 0,
+ "Invalid OI count in scrub file %d\n", sf->sf_oi_count);
+
+ rc = osd_oi_init_index_backup(env, o);
if (rc)
RETURN(rc);
- if (count == 0) {
- uint64_t odb, sdb;
+ osd_oi_init_remote_parent(env, o);
+
+ rc = osd_oi_init_compat(env, o);
+ if (rc)
+ RETURN(rc);
- count = osd_oi_count;
- odb = o->od_root;
+ count = osd_oi_probe(env, o);
+ if (count < 0)
+ GOTO(out, rc = count);
- for (i = 0; i < count; i++) {
- sprintf(key, "%s.%d", DMU_OSD_OI_NAME_BASE, i);
- rc = osd_oi_find_or_create(env, o, odb, key, &sdb);
- if (rc)
- RETURN(rc);
+ if (count > 0) {
+ if (count == sf->sf_oi_count)
+ goto open;
+
+ if (sf->sf_oi_count == 0) {
+ if (likely((count & (count - 1)) == 0)) {
+ sf->sf_oi_count = count;
+ rc = scrub_file_store(env, scrub);
+ if (rc)
+ GOTO(out, rc);
+
+ goto open;
+ }
+
+ LCONSOLE_ERROR("%s: invalid oi count %d. You can "
+ "remove all OIs, then remount it\n",
+ osd_name(o), count);
+ GOTO(out, rc = -EDOM);
+ }
+
+ scrub_file_reset(scrub, o->od_uuid, SF_RECREATED);
+ count = sf->sf_oi_count;
+ } else {
+ if (sf->sf_oi_count > 0) {
+ count = sf->sf_oi_count;
+ memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
+ for (i = 0; i < count; i++)
+ zfs_set_bit(i, sf->sf_oi_bitmap);
+ scrub_file_reset(scrub, o->od_uuid, SF_RECREATED);
+ } else {
+ count = sf->sf_oi_count = osd_oi_count;
}
}
- rc = osd_oi_init_compat(env, o);
+ rc = scrub_file_store(env, scrub);
if (rc)
- RETURN(rc);
+ GOTO(out, rc);
+
+ for (i = 0; i < count; i++) {
+ LASSERT(sizeof(osd_oti_get(env)->oti_buf) >= 32);
+
+ snprintf(key, sizeof(osd_oti_get(env)->oti_buf) - 1,
+ "%s.%d", DMU_OSD_OI_NAME_BASE, i);
+ rc = osd_oi_find_or_create(env, o, o->od_root, key, &sdb);
+ if (rc)
+ GOTO(out, rc);
+ }
+open:
LASSERT((count & (count - 1)) == 0);
o->od_oi_count = count;
- OBD_ALLOC(o->od_oi_table, sizeof(struct osd_oi *) * count);
+ OBD_ALLOC_PTR_ARRAY(o->od_oi_table, count);
if (o->od_oi_table == NULL)
- RETURN(-ENOMEM);
+ GOTO(out, rc = -ENOMEM);
rc = osd_oi_open_table(env, o, count);
+
+ GOTO(out, rc);
+
+out:
if (rc) {
- OBD_FREE(o->od_oi_table, sizeof(struct osd_oi *) * count);
- o->od_oi_table = NULL;
+ osd_ost_seq_fini(env, o);
+
+ if (o->od_oi_table) {
+ OBD_FREE_PTR_ARRAY(o->od_oi_table, count);
+ o->od_oi_table = NULL;
+ }
}
- RETURN(rc);
+ return rc;
}
void osd_oi_fini(const struct lu_env *env, struct osd_device *o)
if (o->od_oi_table != NULL) {
(void) osd_oi_close_table(env, o);
- OBD_FREE(o->od_oi_table,
- sizeof(struct osd_oi *) * o->od_oi_count);
+ OBD_FREE_PTR_ARRAY(o->od_oi_table, o->od_oi_count);
o->od_oi_table = NULL;
o->od_oi_count = 0;
}
return 0;
}
+
+/*
+ * the following set of functions are used to maintain per-thread
+ * cache of FID->ino mapping. this mechanism is used to avoid
+ * expensive LU/OI lookups.
+ */
+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;
+}
+
+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_dnode = 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 the local objects, OI is used to
+ * learn dnode#. the function is used when the caller has no information
+ * about the object, e.g. at dt_insert().
+ */
+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;
+
+ LASSERT(!fid_is_acct(fid));
+
+ idc = osd_idc_find(env, osd, fid);
+ 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 */
+ uint64_t dnode;
+
+ rc = osd_fid_lookup(env, osd, fid, &dnode);
+ if (unlikely(rc < 0)) {
+ CERROR("%s: can't lookup: rc = %d\n",
+ osd->od_svname, rc);
+ return ERR_PTR(rc);
+ }
+ LASSERT(dnode < (1ULL << DN_MAX_OBJECT_SHIFT));
+ idc->oic_dnode = dnode;
+ } else {
+ /* the object is remote */
+ idc->oic_remote = 1;
+ }
+
+ return idc;
+}
+
+/*
+ * lookup mapping for given FID and fill it from the given object.
+ * the object is local by definition.
+ */
+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);
+ if (idc != NULL) {
+ if (obj->oo_dn == NULL)
+ return 0;
+ idc->oic_dnode = obj->oo_dn->dn_object;
+ 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_dn)
+ idc->oic_dnode = obj->oo_dn->dn_object;
+
+ return 0;
+}
+
+int osd_idc_find_and_init_with_oid(const struct lu_env *env,
+ struct osd_device *osd,
+ const struct lu_fid *fid,
+ uint64_t oid)
+{
+ struct osd_idmap_cache *idc;
+
+ idc = osd_idc_find(env, osd, fid);
+ if (!idc) {
+ idc = osd_idc_add(env, osd, fid);
+ if (IS_ERR(idc))
+ return PTR_ERR(idc);
+ }
+
+ idc->oic_dnode = oid;
+ idc->oic_remote = 0;
+
+ return 0;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff