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LU-6175 ha: add health_check routine to the MDS, MGS and OSD
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_handler.c
index 430bb60..0465afb 100644 (file)
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,7 +41,7 @@
  *         Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
  */
 
-#define DEBUG_SUBSYSTEM S_MDS
+#define DEBUG_SUBSYSTEM S_OSD
 
 #include <linux/module.h>
 
@@ -73,6 +73,7 @@
 #include <lustre_quota.h>
 
 #include <ldiskfs/xattr.h>
+#include <lustre_linkea.h>
 
 int ldiskfs_pdo = 1;
 CFS_MODULE_PARM(ldiskfs_pdo, "i", int, 0644,
@@ -85,6 +86,9 @@ CFS_MODULE_PARM(ldiskfs_track_declares_assert, "i", int, 0644,
 /* Slab to allocate dynlocks */
 struct kmem_cache *dynlock_cachep;
 
+/* Slab to allocate osd_it_ea */
+struct kmem_cache *osd_itea_cachep;
+
 static struct lu_kmem_descr ldiskfs_caches[] = {
        {
                .ckd_cache = &dynlock_cachep,
@@ -92,6 +96,11 @@ static struct lu_kmem_descr ldiskfs_caches[] = {
                .ckd_size  = sizeof(struct dynlock_handle)
        },
        {
+               .ckd_cache = &osd_itea_cachep,
+               .ckd_name  = "osd_itea_cache",
+               .ckd_size  = sizeof(struct osd_it_ea)
+       },
+       {
                .ckd_cache = NULL
        }
 };
@@ -348,6 +357,8 @@ static struct inode *osd_iget_check(struct osd_thread_info *info,
 
 check_oi:
        if (rc != 0) {
+               struct osd_inode_id saved_id = *id;
+
                LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
 
                rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
@@ -369,10 +380,22 @@ check_oi:
                 *      to distinguish the 1st case from the 2nd case. */
                if (rc == 0) {
                        if (!IS_ERR(inode) && inode->i_generation != 0 &&
-                           inode->i_generation == id->oii_gen)
+                           inode->i_generation == id->oii_gen) {
                                rc = -ENOENT;
-                       else
+                       } else {
+                               __u32 level = D_LFSCK;
+
                                rc = -EREMCHG;
+                               if (!thread_is_running(&dev->od_scrub.os_thread))
+                                       level |= D_CONSOLE;
+
+                               CDEBUG(level, "%s: the OI mapping for the FID "
+                                      DFID" become inconsistent, the given ID "
+                                      "%u/%u, the ID in OI mapping %u/%u\n",
+                                      osd_name(dev), PFID(fid),
+                                      saved_id.oii_ino, saved_id.oii_gen,
+                                      id->oii_ino, id->oii_ino);
+                       }
                }
        } else {
                if (id->oii_gen == OSD_OII_NOGEN)
@@ -472,15 +495,14 @@ static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
        if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
                fid = &lma->lma_self_fid;
                rc = osd_get_idif(info, inode, dentry, fid);
-               if ((rc > 0) || (rc == -ENODATA && osd->od_lma_self_repair)) {
+               if ((rc > 0) || (rc == -ENODATA && osd->od_index_in_idif)) {
                        /* For the given OST-object, if it has neither LMA nor
                         * FID in XATTR_NAME_FID, then the given FID (which is
                         * contained in the @obj, from client RPC for locating
                         * the OST-object) is trusted. We use it to generate
                         * the LMA. */
                        osd_lma_self_repair(info, osd, inode, rfid,
-                               fid_is_on_ost(info, osd, fid, OI_CHECK_FLD) ?
-                               LMAC_FID_ON_OST : 0);
+                                           LMAC_FID_ON_OST);
                        RETURN(0);
                }
        }
@@ -507,6 +529,8 @@ static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
        }
 
        if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
+               __u32 level = D_LFSCK;
+
                if (fid_is_idif(rfid) && fid_is_idif(fid)) {
                        struct ost_id   *oi   = &info->oti_ostid;
                        struct lu_fid   *fid1 = &info->oti_fid3;
@@ -521,7 +545,7 @@ static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
                                fid_to_ostid(fid, oi);
                                ostid_to_fid(fid1, oi, idx);
                                if (lu_fid_eq(fid1, rfid)) {
-                                       if (osd->od_lma_self_repair)
+                                       if (osd->od_index_in_idif)
                                                osd_lma_self_repair(info, osd,
                                                        inode, rfid,
                                                        LMAC_FID_ON_OST);
@@ -530,9 +554,13 @@ static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
                        }
                }
 
-               CDEBUG(D_INODE, "%s: FID "DFID" != self_fid "DFID"\n",
-                      osd_name(osd), PFID(rfid), PFID(fid));
+
                rc = -EREMCHG;
+               if (!thread_is_running(&osd->od_scrub.os_thread))
+                       level |= D_CONSOLE;
+
+               CDEBUG(level, "%s: FID "DFID" != self_fid "DFID"\n",
+                      osd_name(osd), PFID(rfid), PFID(fid));
        }
 
        RETURN(rc);
@@ -558,7 +586,7 @@ static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
 
        LINVRNT(osd_invariant(obj));
        LASSERT(obj->oo_inode == NULL);
-       LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID, PFID(fid));
+       LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
 
        dev = osd_dev(ldev);
        scrub = &dev->od_scrub;
@@ -632,10 +660,14 @@ trigger:
                        if (thread_is_running(&scrub->os_thread)) {
                                result = -EINPROGRESS;
                        } else if (!dev->od_noscrub) {
-                               result = osd_scrub_start(dev);
-                               LCONSOLE_WARN("%.16s: trigger OI scrub by RPC "
-                                             "for "DFID", rc = %d [1]\n",
-                                             osd_name(dev), PFID(fid),result);
+                               /* Since we do not know the right OI mapping,
+                                * we have to trigger OI scrub to scan the
+                                * whole device. */
+                               result = osd_scrub_start(dev, SS_AUTO_FULL |
+                                       SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
+                               CDEBUG(D_LFSCK | D_CONSOLE, "%.16s: trigger OI "
+                                      "scrub by RPC for "DFID", rc = %d [1]\n",
+                                      osd_name(dev), PFID(fid),result);
                                if (result == 0 || result == -EALREADY)
                                        result = -EINPROGRESS;
                                else
@@ -890,7 +922,7 @@ static int osd_param_is_not_sane(const struct osd_device *dev,
 {
        struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
 
-       return oh->ot_credits > osd_journal(dev)->j_max_transaction_buffers;
+       return oh->ot_credits > osd_transaction_size(dev);
 }
 
 /*
@@ -971,8 +1003,8 @@ static struct thandle *osd_trans_create(const struct lu_env *env,
 /*
  * Concurrency: shouldn't matter.
  */
-int osd_trans_start(const struct lu_env *env, struct dt_device *d,
-                    struct thandle *th)
+static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
+                          struct thandle *th)
 {
         struct osd_thread_info *oti = osd_oti_get(env);
         struct osd_device  *dev = osd_dt_dev(d);
@@ -1029,7 +1061,8 @@ int osd_trans_start(const struct lu_env *env, struct dt_device *d,
                      oti->oti_declare_ops_cred[OSD_OT_REF_DEL]);
 
                if (last_credits != oh->ot_credits &&
-                   time_after(jiffies, last_printed + 60 * HZ)) {
+                   time_after(jiffies, last_printed +
+                              msecs_to_jiffies(60 * MSEC_PER_SEC))) {
                        libcfs_debug_dumpstack(NULL);
                        last_credits = oh->ot_credits;
                        last_printed = jiffies;
@@ -1040,7 +1073,7 @@ int osd_trans_start(const struct lu_env *env, struct dt_device *d,
                 *
                 *     This should be removed when we can calculate the
                 *     credits precisely. */
-               oh->ot_credits = osd_journal(dev)->j_max_transaction_buffers;
+               oh->ot_credits = osd_transaction_size(dev);
        }
 
         /*
@@ -1068,15 +1101,15 @@ out:
 }
 
 static int osd_seq_exists(const struct lu_env *env,
-                             struct osd_device *osd, obd_seq seq)
+                         struct osd_device *osd, u64 seq)
 {
        struct lu_seq_range     *range = &osd_oti_get(env)->oti_seq_range;
        struct seq_server_site  *ss = osd_seq_site(osd);
        int                     rc;
        ENTRY;
 
-       if (ss == NULL)
-               RETURN(1);
+       LASSERT(ss != NULL);
+       LASSERT(ss->ss_server_fld != NULL);
 
        rc = osd_fld_lookup(env, osd, seq, range);
        if (rc != 0) {
@@ -1354,8 +1387,16 @@ static void osd_conf_get(const struct lu_env *env,
  */
 static int osd_sync(const struct lu_env *env, struct dt_device *d)
 {
-       CDEBUG(D_HA, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
-        return ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
+       int rc;
+
+       CDEBUG(D_CACHE, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
+
+       rc = ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
+
+       CDEBUG(D_CACHE, "synced OSD %s: rc = %d\n",
+              LUSTRE_OSD_LDISKFS_NAME, rc);
+
+       return rc;
 }
 
 /**
@@ -1710,17 +1751,20 @@ static void osd_inode_getattr(const struct lu_env *env,
 }
 
 static int osd_attr_get(const struct lu_env *env,
-                        struct dt_object *dt,
-                        struct lu_attr *attr,
-                        struct lustre_capa *capa)
+                       struct dt_object *dt,
+                       struct lu_attr *attr,
+                       struct lustre_capa *capa)
 {
-        struct osd_object *obj = osd_dt_obj(dt);
+       struct osd_object *obj = osd_dt_obj(dt);
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LINVRNT(osd_invariant(obj));
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
-                return -EACCES;
+       LASSERT(!dt_object_remote(dt));
+       LINVRNT(osd_invariant(obj));
+
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
+               return -EACCES;
 
        spin_lock(&obj->oo_guard);
        osd_inode_getattr(env, obj->oo_inode, attr);
@@ -1741,7 +1785,7 @@ static int osd_declare_attr_set(const struct lu_env *env,
        qid_t                   gid;
        long long               bspace;
        int                     rc = 0;
-       bool                    allocated;
+       bool                    enforce;
        ENTRY;
 
        LASSERT(dt != NULL);
@@ -1769,18 +1813,19 @@ static int osd_declare_attr_set(const struct lu_env *env,
         * We still need to call the osd_declare_qid() to calculate the journal
         * credits for updating quota accounting files and to trigger quota
         * space adjustment once the operation is completed.*/
-       if ((attr->la_valid & LA_UID) != 0 &&
-            attr->la_uid != (uid = i_uid_read(obj->oo_inode))) {
+       if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
+               /* USERQUOTA */
+               uid = i_uid_read(obj->oo_inode);
                qi->lqi_type = USRQUOTA;
-
+               enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
                /* inode accounting */
                qi->lqi_is_blk = false;
 
-               /* one more inode for the new owner ... */
+               /* one more inode for the new uid ... */
                qi->lqi_id.qid_uid = attr->la_uid;
                qi->lqi_space      = 1;
-               allocated = (attr->la_uid == 0) ? true : false;
-               rc = osd_declare_qid(env, oh, qi, allocated, NULL);
+               /* Reserve credits for the new uid */
+               rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
@@ -1789,7 +1834,7 @@ static int osd_declare_attr_set(const struct lu_env *env,
                /* and one less inode for the current uid */
                qi->lqi_id.qid_uid = uid;
                qi->lqi_space      = -1;
-               rc = osd_declare_qid(env, oh, qi, true, NULL);
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
@@ -1798,38 +1843,40 @@ static int osd_declare_attr_set(const struct lu_env *env,
                /* block accounting */
                qi->lqi_is_blk = true;
 
-               /* more blocks for the new owner ... */
+               /* more blocks for the new uid ... */
                qi->lqi_id.qid_uid = attr->la_uid;
                qi->lqi_space      = bspace;
-               allocated = (attr->la_uid == 0) ? true : false;
-               rc = osd_declare_qid(env, oh, qi, allocated, NULL);
+               /*
+                * Credits for the new uid has been reserved, re-use "obj"
+                * to save credit reservation.
+                */
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
                        RETURN(rc);
 
-               /* and finally less blocks for the current owner */
+               /* and finally less blocks for the current uid */
                qi->lqi_id.qid_uid = uid;
                qi->lqi_space      = -bspace;
-               rc = osd_declare_qid(env, oh, qi, true, NULL);
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
                        RETURN(rc);
-       }
 
-       if (attr->la_valid & LA_GID &&
-           attr->la_gid != (gid = i_gid_read(obj->oo_inode))) {
+               /* GROUP QUOTA */
+               gid = i_gid_read(obj->oo_inode);
                qi->lqi_type = GRPQUOTA;
+               enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
 
                /* inode accounting */
                qi->lqi_is_blk = false;
 
-               /* one more inode for the new group owner ... */
+               /* one more inode for the new gid ... */
                qi->lqi_id.qid_gid = attr->la_gid;
                qi->lqi_space      = 1;
-               allocated = (attr->la_gid == 0) ? true : false;
-               rc = osd_declare_qid(env, oh, qi, allocated, NULL);
+               rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
@@ -1838,7 +1885,7 @@ static int osd_declare_attr_set(const struct lu_env *env,
                /* and one less inode for the current gid */
                qi->lqi_id.qid_gid = gid;
                qi->lqi_space      = -1;
-               rc = osd_declare_qid(env, oh, qi, true, NULL);
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
@@ -1847,20 +1894,19 @@ static int osd_declare_attr_set(const struct lu_env *env,
                /* block accounting */
                qi->lqi_is_blk = true;
 
-               /* more blocks for the new owner ... */
+               /* more blocks for the new gid ... */
                qi->lqi_id.qid_gid = attr->la_gid;
                qi->lqi_space      = bspace;
-               allocated = (attr->la_gid == 0) ? true : false;
-               rc = osd_declare_qid(env, oh, qi, allocated, NULL);
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
                        RETURN(rc);
 
-               /* and finally less blocks for the current owner */
+               /* and finally less blocks for the current gid */
                qi->lqi_id.qid_gid = gid;
                qi->lqi_space      = -bspace;
-               rc = osd_declare_qid(env, oh, qi, true, NULL);
+               rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
                if (rc == -EDQUOT || rc == -EINPROGRESS)
                        rc = 0;
                if (rc)
@@ -1871,11 +1917,16 @@ static int osd_declare_attr_set(const struct lu_env *env,
 }
 
 static int osd_inode_setattr(const struct lu_env *env,
-                             struct inode *inode, const struct lu_attr *attr)
+                            struct inode *inode, const struct lu_attr *attr)
 {
-        __u64 bits;
+       __u64 bits = attr->la_valid;
+
+       /* Only allow set size for regular file */
+       if (!S_ISREG(inode->i_mode))
+               bits &= ~(LA_SIZE | LA_BLOCKS);
 
-        bits = attr->la_valid;
+       if (bits == 0)
+               return 0;
 
         if (bits & LA_ATIME)
                 inode->i_atime  = *osd_inode_time(env, inode, attr->la_atime);
@@ -1921,6 +1972,7 @@ static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
                struct iattr    iattr;
                int             rc;
 
+               ll_vfs_dq_init(inode);
                iattr.ia_valid = 0;
                if (attr->la_valid & LA_UID)
                        iattr.ia_valid |= ATTR_UID;
@@ -1932,8 +1984,8 @@ static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
                rc = ll_vfs_dq_transfer(inode, &iattr);
                if (rc) {
                        CERROR("%s: quota transfer failed: rc = %d. Is quota "
-                              "enforcement enabled on the ldiskfs filesystem?",
-                              inode->i_sb->s_id, rc);
+                              "enforcement enabled on the ldiskfs "
+                              "filesystem?\n", inode->i_sb->s_id, rc);
                        return rc;
                }
        }
@@ -1941,21 +1993,24 @@ static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
 }
 
 static int osd_attr_set(const struct lu_env *env,
-                        struct dt_object *dt,
-                        const struct lu_attr *attr,
-                        struct thandle *handle,
-                        struct lustre_capa *capa)
+                       struct dt_object *dt,
+                       const struct lu_attr *attr,
+                       struct thandle *handle,
+                       struct lustre_capa *capa)
 {
-        struct osd_object *obj = osd_dt_obj(dt);
-        struct inode      *inode;
-        int rc;
+       struct osd_object *obj = osd_dt_obj(dt);
+       struct inode      *inode;
+       int rc;
 
-        LASSERT(handle != NULL);
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(osd_invariant(obj));
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
-                return -EACCES;
+       LASSERT(handle != NULL);
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(osd_invariant(obj));
+
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
+               return -EACCES;
 
        osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
 
@@ -1985,7 +2040,6 @@ static int osd_attr_set(const struct lu_env *env,
        }
 
         inode = obj->oo_inode;
-       ll_vfs_dq_init(inode);
 
        rc = osd_quota_transfer(inode, attr);
        if (rc)
@@ -2000,9 +2054,9 @@ static int osd_attr_set(const struct lu_env *env,
         return rc;
 }
 
-struct dentry *osd_child_dentry_get(const struct lu_env *env,
-                                    struct osd_object *obj,
-                                    const char *name, const int namelen)
+static struct dentry *osd_child_dentry_get(const struct lu_env *env,
+                                          struct osd_object *obj,
+                                          const char *name, const int namelen)
 {
         return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
 }
@@ -2038,14 +2092,13 @@ static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
                                               osd_sb(osd)->s_root->d_inode,
                                      mode);
         if (!IS_ERR(inode)) {
-                /* Do not update file c/mtime in ldiskfs.
-                 * NB: don't need any lock because no contention at this
-                 * early stage */
-                inode->i_flags |= S_NOCMTIME;
+               /* Do not update file c/mtime in ldiskfs. */
+               inode->i_flags |= S_NOCMTIME;
 
                /* For new created object, it must be consistent,
                 * and it is unnecessary to scrub against it. */
                ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
+
                 obj->oo_inode = inode;
                 result = 0;
         } else {
@@ -2245,7 +2298,7 @@ static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
                  * should not happen since quota enforcement is no longer
                  * enabled on ldiskfs (lquota takes care of it).
                  */
-                LASSERTF(result == 0, "%d", result);
+               LASSERTF(result == 0, "%d\n", result);
                ll_dirty_inode(inode, I_DIRTY_DATASYNC);
         }
 
@@ -2272,13 +2325,16 @@ static int __osd_object_create(struct osd_thread_info *info,
 
        result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
                                                  th);
-        if (result == 0) {
+       if (result == 0) {
                osd_attr_init(info, obj, attr, dof);
                osd_object_init0(obj);
-               /* bz 24037 */
-               if (obj->oo_inode && (obj->oo_inode->i_state & I_NEW))
-                       unlock_new_inode(obj->oo_inode);
-        }
+       }
+
+       if (obj->oo_inode != NULL) {
+               LASSERT(obj->oo_inode->i_state & I_NEW);
+
+               unlock_new_inode(obj->oo_inode);
+       }
 
        /* restore previous umask value */
        current->fs->umask = umask;
@@ -2309,7 +2365,7 @@ static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
 }
 
 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
-                  obd_seq seq, struct lu_seq_range *range)
+                  u64 seq, struct lu_seq_range *range)
 {
        struct seq_server_site  *ss = osd_seq_site(osd);
 
@@ -2375,7 +2431,7 @@ static int osd_declare_object_create(const struct lu_env *env,
                RETURN(0);
 
        rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
-                                  false, false, NULL, false);
+                                  osd_dt_obj(dt), false, NULL, false);
        if (rc != 0)
                RETURN(rc);
 
@@ -2383,22 +2439,23 @@ static int osd_declare_object_create(const struct lu_env *env,
 }
 
 static int osd_object_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 lu_attr *attr,
+                            struct dt_allocation_hint *hint,
+                            struct dt_object_format *dof, struct thandle *th)
 {
-        const struct lu_fid    *fid    = lu_object_fid(&dt->do_lu);
-        struct osd_object      *obj    = osd_dt_obj(dt);
-        struct osd_thread_info *info   = osd_oti_get(env);
-        int result;
+       const struct lu_fid     *fid    = lu_object_fid(&dt->do_lu);
+       struct osd_object       *obj    = osd_dt_obj(dt);
+       struct osd_thread_info  *info   = osd_oti_get(env);
+       int result;
+       ENTRY;
 
-        ENTRY;
+       if (dt_object_exists(dt))
+               return -EEXIST;
 
-        LINVRNT(osd_invariant(obj));
-       LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(osd_write_locked(env, obj));
-        LASSERT(th != NULL);
+       LINVRNT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(osd_write_locked(env, obj));
+       LASSERT(th != NULL);
 
        if (unlikely(fid_is_acct(fid)))
                /* Quota files can't be created from the kernel any more,
@@ -2446,12 +2503,12 @@ static int osd_declare_object_destroy(const struct lu_env *env,
                             osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
        /* one less inode */
        rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
-                                  -1, oh, false, true, NULL, false);
+                                  -1, oh, obj, false, NULL, false);
        if (rc)
                RETURN(rc);
        /* data to be truncated */
        rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
-                                  0, oh, true, true, NULL, false);
+                                  0, oh, obj, true, NULL, false);
        RETURN(rc);
 }
 
@@ -2565,10 +2622,10 @@ int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
  * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
  * its inmemory API.
  */
-void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
-                                 const struct dt_rec *fid)
+static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
+                                        const struct lu_fid *fid)
 {
-       if (!fid_is_namespace_visible((const struct lu_fid *)fid) ||
+       if (!fid_is_namespace_visible(fid) ||
            OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
                param->edp_magic = 0;
                return;
@@ -2605,9 +2662,9 @@ static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
 
 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
                                        struct inode *dir,
-                                       struct inode  *parent_dir,
-                                       const struct dt_rec *dot_fid,
-                                       const struct dt_rec *dot_dot_fid,
+                                       struct inode *parent_dir,
+                                       const struct lu_fid *dot_fid,
+                                       const struct lu_fid *dot_dot_fid,
                                        struct osd_thandle *oth)
 {
        struct ldiskfs_dentry_param *dot_ldp;
@@ -2629,6 +2686,7 @@ static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
                                                  struct osd_device *osd,
                                                  struct osd_object *pobj,
                                                  const struct lu_fid *fid,
+                                                 __u32 type,
                                                  struct thandle *th)
 {
        struct osd_thread_info  *info = osd_oti_get(env);
@@ -2641,15 +2699,16 @@ static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
        oh = container_of(th, struct osd_thandle, ot_super);
        LASSERT(oh->ot_handle->h_transaction != NULL);
 
-       /* FIXME: Insert index api needs to know the mode of
-        * the remote object. Just use S_IFDIR for now */
-       local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, S_IFDIR);
+       local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
        if (IS_ERR(local)) {
                CERROR("%s: create local error %d\n", osd_name(osd),
                       (int)PTR_ERR(local));
                RETURN(local);
        }
 
+       ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
+       unlock_new_inode(local);
+
        /* Set special LMA flag for local agent inode */
        rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
        if (rc != 0) {
@@ -2658,9 +2717,12 @@ static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
                RETURN(ERR_PTR(rc));
        }
 
+       if (!S_ISDIR(type))
+               RETURN(local);
+
        rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
-               (const struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
-               (const struct dt_rec *)fid, oh);
+                                        lu_object_fid(&pobj->oo_dt.do_lu),
+                                        fid, oh);
        if (rc != 0) {
                CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
                        osd_name(osd), PFID(fid), rc);
@@ -2709,22 +2771,25 @@ static int osd_delete_local_agent_inode(const struct lu_env *env,
  * \retval -ve, on error
  */
 static int osd_object_ea_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 lu_attr *attr,
+                               struct dt_allocation_hint *hint,
+                               struct dt_object_format *dof,
+                               struct thandle *th)
 {
-        const struct lu_fid    *fid    = lu_object_fid(&dt->do_lu);
-        struct osd_object      *obj    = osd_dt_obj(dt);
-        struct osd_thread_info *info   = osd_oti_get(env);
-        int                     result;
+       const struct lu_fid     *fid    = lu_object_fid(&dt->do_lu);
+       struct osd_object       *obj    = osd_dt_obj(dt);
+       struct osd_thread_info  *info   = osd_oti_get(env);
+       int                      result;
 
-        ENTRY;
+       ENTRY;
 
-        LASSERT(osd_invariant(obj));
-       LASSERT(!dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(osd_write_locked(env, obj));
-        LASSERT(th != NULL);
+       if (dt_object_exists(dt))
+               RETURN(-EEXIST);
+
+       LASSERT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(osd_write_locked(env, obj));
+       LASSERT(th != NULL);
 
        if (unlikely(fid_is_acct(fid)))
                /* Quota files can't be created from the kernel any more,
@@ -2734,12 +2799,24 @@ static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
        osd_trans_exec_op(env, th, OSD_OT_CREATE);
        osd_trans_declare_rb(env, th, OSD_OT_REF_ADD);
 
-        result = __osd_object_create(info, obj, attr, hint, dof, th);
-       if (result == 0)
-               result = osd_ea_fid_set(info, obj->oo_inode, fid,
+       result = __osd_object_create(info, obj, attr, hint, dof, th);
+       if (result == 0) {
+               if (fid_is_idif(fid) &&
+                   !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
+                       struct lu_fid *tfid = &info->oti_fid;
+                       struct ost_id *oi   = &info->oti_ostid;
+
+                       fid_to_ostid(fid, oi);
+                       ostid_to_fid(tfid, oi, 0);
+                       result = osd_ea_fid_set(info, obj->oo_inode, tfid,
+                                               LMAC_FID_ON_OST, 0);
+               } else {
+                       result = osd_ea_fid_set(info, obj->oo_inode, fid,
                                fid_is_on_ost(info, osd_obj2dev(obj),
                                              fid, OI_CHECK_FLD) ?
                                LMAC_FID_ON_OST : 0, 0);
+               }
+       }
 
        if (result == 0)
                result = __osd_oi_insert(env, obj, fid, th);
@@ -2772,20 +2849,23 @@ static int osd_declare_object_ref_add(const struct lu_env *env,
  * Concurrency: @dt is write locked.
  */
 static int osd_object_ref_add(const struct lu_env *env,
-                              struct dt_object *dt, struct thandle *th)
+                             struct dt_object *dt, struct thandle *th)
 {
        struct osd_object  *obj = osd_dt_obj(dt);
        struct inode       *inode = obj->oo_inode;
        struct osd_thandle *oh;
        int                 rc = 0;
 
-        LINVRNT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(osd_write_locked(env, obj));
-        LASSERT(th != NULL);
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        oh = container_of0(th, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle != NULL);
+       LINVRNT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(osd_write_locked(env, obj));
+       LASSERT(th != NULL);
+
+       oh = container_of0(th, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle != NULL);
 
        osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
 
@@ -2802,17 +2882,15 @@ static int osd_object_ref_add(const struct lu_env *env,
         * This also has to properly handle the case of inodes with nlink == 0
         * in case they are being linked into the PENDING directory
         */
-#ifdef I_LINKABLE
-       /* This is necessary to increment from i_nlink == 0 */
-       spin_lock(&inode->i_lock);
-       inode->i_state |= I_LINKABLE;
-       spin_unlock(&inode->i_lock);
-#endif
-
        spin_lock(&obj->oo_guard);
-       ldiskfs_inc_count(oh->ot_handle, inode);
-       if (!S_ISDIR(inode->i_mode))
-               LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
+       if (unlikely(inode->i_nlink == 0))
+               /* inc_nlink from 0 may cause WARN_ON */
+               set_nlink(inode, 1);
+       else {
+               ldiskfs_inc_count(oh->ot_handle, inode);
+               if (!S_ISDIR(inode->i_mode))
+                       LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
+       }
        spin_unlock(&obj->oo_guard);
 
        ll_dirty_inode(inode, I_DIRTY_DATASYNC);
@@ -2822,16 +2900,16 @@ static int osd_object_ref_add(const struct lu_env *env,
 }
 
 static int osd_declare_object_ref_del(const struct lu_env *env,
-                                      struct dt_object *dt,
-                                      struct thandle *handle)
+                                     struct dt_object *dt,
+                                     struct thandle *handle)
 {
-        struct osd_thandle *oh;
+       struct osd_thandle *oh;
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(handle != NULL);
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(handle != NULL);
 
-        oh = container_of0(handle, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle == NULL);
+       oh = container_of0(handle, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle == NULL);
 
        osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
                             osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
@@ -2843,20 +2921,23 @@ static int osd_declare_object_ref_del(const struct lu_env *env,
  * Concurrency: @dt is write locked.
  */
 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
-                              struct thandle *th)
+                             struct thandle *th)
 {
        struct osd_object       *obj = osd_dt_obj(dt);
        struct inode            *inode = obj->oo_inode;
        struct osd_device       *osd = osd_dev(dt->do_lu.lo_dev);
        struct osd_thandle      *oh;
 
+       if (!dt_object_exists(dt))
+               return -ENOENT;
+
        LINVRNT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
+       LASSERT(!dt_object_remote(dt));
        LASSERT(osd_write_locked(env, obj));
        LASSERT(th != NULL);
 
-        oh = container_of0(th, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle != NULL);
+       oh = container_of0(th, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle != NULL);
 
        osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
 
@@ -2915,16 +2996,26 @@ static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
         if (strcmp(name, XATTR_NAME_VERSION) == 0) {
                 /* for version we are just using xattr API but change inode
                  * field instead */
-                LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
-                osd_object_version_get(env, dt, buf->lb_buf);
-                return sizeof(dt_obj_version_t);
+               if (buf->lb_len == 0)
+                       return sizeof(dt_obj_version_t);
+
+               if (buf->lb_len < sizeof(dt_obj_version_t))
+                       return -ERANGE;
+
+               osd_object_version_get(env, dt, buf->lb_buf);
+
+               return sizeof(dt_obj_version_t);
         }
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(inode->i_op != NULL && inode->i_op->getxattr != NULL);
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
-                return -EACCES;
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(inode->i_op != NULL);
+       LASSERT(inode->i_op->getxattr != NULL);
+
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
+               return -EACCES;
 
        return __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
 }
@@ -2937,6 +3028,7 @@ static int osd_declare_xattr_set(const struct lu_env *env,
 {
        struct osd_thandle *oh;
        int credits;
+       struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
 
        LASSERT(handle != NULL);
 
@@ -2952,13 +3044,16 @@ static int osd_declare_xattr_set(const struct lu_env *env,
        } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
                credits = 1;
        } else {
-               struct osd_device  *osd = osd_dev(dt->do_lu.lo_dev);
-               struct super_block *sb = osd_sb(osd);
                credits = osd_dto_credits_noquota[DTO_XATTR_SET];
                if (buf && buf->lb_len > sb->s_blocksize) {
                        credits *= (buf->lb_len + sb->s_blocksize - 1) >>
                                        sb->s_blocksize_bits;
                }
+               /*
+                * xattr set may involve inode quota change, reserve credits for
+                * dquot_initialize()
+                */
+               oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
        }
 
        osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
@@ -3011,7 +3106,7 @@ static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
         if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
                 return -EACCES;
 
-       CDEBUG(D_INODE, DFID" set xattr '%s' with size %zd\n",
+       CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
               PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
 
        osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
@@ -3037,6 +3132,10 @@ static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
                        RETURN(rc);
        }
 
+       if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_OVERFLOW) &&
+           strcmp(name, XATTR_NAME_LINK) == 0)
+               return -ENOSPC;
+
        return __osd_xattr_set(info, inode, name, buf->lb_buf, buf->lb_len,
                               fs_flags);
 }
@@ -3045,38 +3144,48 @@ static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
  * Concurrency: @dt is read locked.
  */
 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
-                          struct lu_buf *buf, struct lustre_capa *capa)
+                         const struct lu_buf *buf, struct lustre_capa *capa)
 {
-        struct osd_object      *obj    = osd_dt_obj(dt);
-        struct inode           *inode  = obj->oo_inode;
-        struct osd_thread_info *info   = osd_oti_get(env);
-        struct dentry          *dentry = &info->oti_obj_dentry;
+       struct osd_object      *obj    = osd_dt_obj(dt);
+       struct inode           *inode  = obj->oo_inode;
+       struct osd_thread_info *info   = osd_oti_get(env);
+       struct dentry          *dentry = &info->oti_obj_dentry;
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(inode->i_op != NULL && inode->i_op->listxattr != NULL);
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
-                return -EACCES;
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(inode->i_op != NULL);
+       LASSERT(inode->i_op->listxattr != NULL);
 
-        dentry->d_inode = inode;
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_META_READ))
+               return -EACCES;
+
+       dentry->d_inode = inode;
        dentry->d_sb = inode->i_sb;
-        return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
+       return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
 }
 
 static int osd_declare_xattr_del(const struct lu_env *env,
-                                 struct dt_object *dt, const char *name,
-                                 struct thandle *handle)
+                                struct dt_object *dt, const char *name,
+                                struct thandle *handle)
 {
-        struct osd_thandle *oh;
+       struct osd_thandle *oh;
+       struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(handle != NULL);
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(handle != NULL);
 
-        oh = container_of0(handle, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle == NULL);
+       oh = container_of0(handle, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle == NULL);
 
        osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
                             osd_dto_credits_noquota[DTO_XATTR_SET]);
+       /*
+        * xattr del may involve inode quota change, reserve credits for
+        * dquot_initialize()
+        */
+       oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
 
        return 0;
 }
@@ -3085,29 +3194,33 @@ static int osd_declare_xattr_del(const struct lu_env *env,
  * Concurrency: @dt is write locked.
  */
 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
-                         const char *name, struct thandle *handle,
-                         struct lustre_capa *capa)
+                        const char *name, struct thandle *handle,
+                        struct lustre_capa *capa)
 {
-        struct osd_object      *obj    = osd_dt_obj(dt);
-        struct inode           *inode  = obj->oo_inode;
-        struct osd_thread_info *info   = osd_oti_get(env);
-        struct dentry          *dentry = &info->oti_obj_dentry;
-        int                     rc;
+       struct osd_object      *obj    = osd_dt_obj(dt);
+       struct inode           *inode  = obj->oo_inode;
+       struct osd_thread_info *info   = osd_oti_get(env);
+       struct dentry          *dentry = &info->oti_obj_dentry;
+       int                     rc;
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(inode->i_op != NULL && inode->i_op->removexattr != NULL);
-        LASSERT(handle != NULL);
+       if (!dt_object_exists(dt))
+               return -ENOENT;
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
-                return -EACCES;
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(inode->i_op != NULL);
+       LASSERT(inode->i_op->removexattr != NULL);
+       LASSERT(handle != NULL);
+
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_META_WRITE))
+               return -EACCES;
 
        osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
 
        ll_vfs_dq_init(inode);
-        dentry->d_inode = inode;
+       dentry->d_inode = inode;
        dentry->d_sb = inode->i_sb;
-        rc = inode->i_op->removexattr(dentry, name);
-        return rc;
+       rc = inode->i_op->removexattr(dentry, name);
+       return rc;
 }
 
 static struct obd_capa *osd_capa_get(const struct lu_env *env,
@@ -3128,7 +3241,10 @@ static struct obd_capa *osd_capa_get(const struct lu_env *env,
        if (!osd->od_fl_capa)
                RETURN(ERR_PTR(-ENOENT));
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
+       if (!dt_object_exists(dt))
+               RETURN(ERR_PTR(-ENOENT));
+
+       LASSERT(!dt_object_remote(dt));
        LINVRNT(osd_invariant(obj));
 
        /* renewal sanity check */
@@ -3215,17 +3331,7 @@ static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
        file->f_op = inode->i_fop;
        set_file_inode(file, inode);
 
-#ifdef HAVE_FILE_FSYNC_4ARGS
-       rc = file->f_op->fsync(file, start, end, 0);
-#elif defined(HAVE_FILE_FSYNC_2ARGS)
-       mutex_lock(&inode->i_mutex);
-       rc = file->f_op->fsync(file, 0);
-       mutex_unlock(&inode->i_mutex);
-#else
-       mutex_lock(&inode->i_mutex);
-       rc = file->f_op->fsync(file, dentry, 0);
-       mutex_unlock(&inode->i_mutex);
-#endif
+       rc = ll_vfs_fsync_range(file, start, end, 0);
 
        RETURN(rc);
 }
@@ -3478,28 +3584,29 @@ static int osd_index_declare_iam_delete(const struct lu_env *env,
  *      \retval  0  success
  *      \retval -ve   failure
  */
-
 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
-                                const struct dt_key *key,
-                                struct thandle *handle,
-                                struct lustre_capa *capa)
+                               const struct dt_key *key,
+                               struct thandle *handle,
+                               struct lustre_capa *capa)
 {
-        struct osd_thread_info *oti = osd_oti_get(env);
-        struct osd_object      *obj = osd_dt_obj(dt);
-        struct osd_thandle     *oh;
-        struct iam_path_descr  *ipd;
-        struct iam_container   *bag = &obj->oo_dir->od_container;
-        int                     rc;
+       struct osd_thread_info *oti = osd_oti_get(env);
+       struct osd_object      *obj = osd_dt_obj(dt);
+       struct osd_thandle     *oh;
+       struct iam_path_descr  *ipd;
+       struct iam_container   *bag = &obj->oo_dir->od_container;
+       int                     rc;
+       ENTRY;
 
-        ENTRY;
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
 
-        LINVRNT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(bag->ic_object == obj->oo_inode);
-        LASSERT(handle != NULL);
+       LINVRNT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(bag->ic_object == obj->oo_inode);
+       LASSERT(handle != NULL);
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
-                RETURN(-EACCES);
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_DELETE))
+               RETURN(-EACCES);
 
        osd_trans_exec_op(env, handle, OSD_OT_DELETE);
 
@@ -3533,7 +3640,7 @@ static int osd_index_declare_ea_delete(const struct lu_env *env,
        int                 rc;
        ENTRY;
 
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
+       LASSERT(!dt_object_remote(dt));
        LASSERT(handle != NULL);
 
        oh = container_of0(handle, struct osd_thandle, ot_super);
@@ -3546,7 +3653,7 @@ static int osd_index_declare_ea_delete(const struct lu_env *env,
        LASSERT(inode);
 
        rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
-                                  0, oh, true, true, NULL, false);
+                                  0, oh, osd_dt_obj(dt), true, NULL, false);
        RETURN(rc);
 }
 
@@ -3564,14 +3671,22 @@ static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
 }
 
 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
-                         struct lu_fid *fid)
+                         const struct lu_fid *fid)
 {
+       struct seq_server_site  *ss = osd_seq_site(osd);
        ENTRY;
 
        /* FID seqs not in FLDB, must be local seq */
        if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
                RETURN(0);
 
+       /* If FLD is not being initialized yet, it only happens during the
+        * initialization, likely during mgs initialization, and we assume
+        * this is local FID. */
+       if (ss == NULL || ss->ss_server_fld == NULL)
+               RETURN(0);
+
+       /* Only check the local FLDB here */
        if (osd_seq_exists(env, osd, fid_seq(fid)))
                RETURN(0);
 
@@ -3589,25 +3704,27 @@ static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
  * \retval -ve, on error
  */
 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
-                               const struct dt_key *key,
-                               struct thandle *handle,
-                               struct lustre_capa *capa)
+                              const struct dt_key *key, struct thandle *handle,
+                              struct lustre_capa *capa)
 {
-        struct osd_object          *obj    = osd_dt_obj(dt);
-        struct inode               *dir    = obj->oo_inode;
-        struct dentry              *dentry;
-        struct osd_thandle         *oh;
+       struct osd_object          *obj = osd_dt_obj(dt);
+       struct inode               *dir = obj->oo_inode;
+       struct dentry              *dentry;
+       struct osd_thandle         *oh;
        struct ldiskfs_dir_entry_2 *de = NULL;
-        struct buffer_head         *bh;
-        struct htree_lock          *hlock = NULL;
+       struct buffer_head         *bh;
+       struct htree_lock          *hlock = NULL;
        struct lu_fid              *fid = &osd_oti_get(env)->oti_fid;
        struct osd_device          *osd = osd_dev(dt->do_lu.lo_dev);
        int                        rc;
-        ENTRY;
+       ENTRY;
 
-        LINVRNT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(handle != NULL);
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
+
+       LINVRNT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(handle != NULL);
 
        osd_trans_exec_op(env, handle, OSD_OT_DELETE);
 
@@ -3746,22 +3863,24 @@ out:
  *      \retval -ve   failure
  */
 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
-                                struct dt_rec *rec, const struct dt_key *key,
-                                struct lustre_capa *capa)
+                               struct dt_rec *rec, const struct dt_key *key,
+                               struct lustre_capa *capa)
 {
-        struct osd_object      *obj = osd_dt_obj(dt);
-        struct iam_path_descr  *ipd;
-        struct iam_container   *bag = &obj->oo_dir->od_container;
-        struct osd_thread_info *oti = osd_oti_get(env);
-        struct iam_iterator    *it = &oti->oti_idx_it;
-        struct iam_rec         *iam_rec;
-        int                     rc;
+       struct osd_object      *obj = osd_dt_obj(dt);
+       struct iam_path_descr  *ipd;
+       struct iam_container   *bag = &obj->oo_dir->od_container;
+       struct osd_thread_info *oti = osd_oti_get(env);
+       struct iam_iterator    *it = &oti->oti_idx_it;
+       struct iam_rec         *iam_rec;
+       int                     rc;
+       ENTRY;
 
-        ENTRY;
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
 
-        LASSERT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(bag->ic_object == obj->oo_inode);
+       LASSERT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(bag->ic_object == obj->oo_inode);
 
         if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_LOOKUP))
                 RETURN(-EACCES);
@@ -3835,26 +3954,30 @@ static int osd_index_declare_iam_insert(const struct lu_env *env,
  *      \retval -ve failure
  */
 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
-                                const struct dt_rec *rec,
-                                const struct dt_key *key, struct thandle *th,
-                                struct lustre_capa *capa, int ignore_quota)
-{
-        struct osd_object     *obj = osd_dt_obj(dt);
-        struct iam_path_descr *ipd;
-        struct osd_thandle    *oh;
-        struct iam_container  *bag = &obj->oo_dir->od_container;
-        struct osd_thread_info *oti = osd_oti_get(env);
-        struct iam_rec         *iam_rec;
-        int                     rc;
+                               const struct dt_rec *rec,
+                               const struct dt_key *key, struct thandle *th,
+                               struct lustre_capa *capa, int ignore_quota)
+{
+       struct osd_object     *obj = osd_dt_obj(dt);
+       struct iam_path_descr *ipd;
+       struct osd_thandle    *oh;
+       struct iam_container  *bag;
+       struct osd_thread_info *oti = osd_oti_get(env);
+       struct iam_rec         *iam_rec;
+       int                     rc;
+       ENTRY;
 
-        ENTRY;
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
 
-        LINVRNT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(bag->ic_object == obj->oo_inode);
-        LASSERT(th != NULL);
+       LINVRNT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+
+       bag = &obj->oo_dir->od_container;
+       LASSERT(bag->ic_object == obj->oo_inode);
+       LASSERT(th != NULL);
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
                RETURN(-EACCES);
 
        osd_trans_exec_op(env, th, OSD_OT_INSERT);
@@ -3896,9 +4019,9 @@ static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
  * \retval -ve, on error
  */
 static int __osd_ea_add_rec(struct osd_thread_info *info,
-                            struct osd_object *pobj, struct inode  *cinode,
-                            const char *name, const struct dt_rec *fid,
-                            struct htree_lock *hlock, struct thandle *th)
+                           struct osd_object *pobj, struct inode  *cinode,
+                           const char *name, const struct lu_fid *fid,
+                           struct htree_lock *hlock, struct thandle *th)
 {
         struct ldiskfs_dentry_param *ldp;
         struct dentry               *child;
@@ -3920,6 +4043,29 @@ static int __osd_ea_add_rec(struct osd_thread_info *info,
        child->d_fsdata = (void *)ldp;
        ll_vfs_dq_init(pobj->oo_inode);
        rc = osd_ldiskfs_add_entry(oth->ot_handle, child, cinode, hlock);
+       if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
+               struct ldiskfs_dir_entry_2      *de;
+               struct buffer_head              *bh;
+               int                              rc1;
+
+               bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
+                                           NULL, hlock);
+               if (bh != NULL) {
+                       rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
+                                                              bh);
+                       if (rc1 == 0) {
+                               if (S_ISDIR(cinode->i_mode))
+                                       de->file_type = LDISKFS_DIRENT_LUFID |
+                                                       LDISKFS_FT_REG_FILE;
+                               else
+                                       de->file_type = LDISKFS_DIRENT_LUFID |
+                                                       LDISKFS_FT_DIR;
+                               ldiskfs_handle_dirty_metadata(oth->ot_handle,
+                                                             NULL, bh);
+                               brelse(bh);
+                       }
+               }
+       }
 
        RETURN(rc);
 }
@@ -3937,11 +4083,11 @@ static int __osd_ea_add_rec(struct osd_thread_info *info,
  * \retval -ve, on error
  */
 static int osd_add_dot_dotdot(struct osd_thread_info *info,
-                              struct osd_object *dir,
-                              struct inode  *parent_dir, const char *name,
-                              const struct dt_rec *dot_fid,
-                              const struct dt_rec *dot_dot_fid,
-                              struct thandle *th)
+                             struct osd_object *dir,
+                             struct inode *parent_dir, const char *name,
+                             const struct lu_fid *dot_fid,
+                             const struct lu_fid *dot_dot_fid,
+                             struct thandle *th)
 {
         struct inode                *inode = dir->oo_inode;
         struct osd_thandle          *oth;
@@ -3968,9 +4114,19 @@ static int osd_add_dot_dotdot(struct osd_thread_info *info,
                                                dot_dot_fid, NULL, th);
                }
 
-               result = osd_add_dot_dotdot_internal(info, dir->oo_inode,
-                                               parent_dir, dot_fid,
-                                               dot_dot_fid, oth);
+               if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
+                       struct lu_fid tfid = *dot_dot_fid;
+
+                       tfid.f_oid--;
+                       result = osd_add_dot_dotdot_internal(info,
+                                       dir->oo_inode, parent_dir, dot_fid,
+                                       &tfid, oth);
+               } else {
+                       result = osd_add_dot_dotdot_internal(info,
+                                       dir->oo_inode, parent_dir, dot_fid,
+                                       dot_dot_fid, oth);
+               }
+
                if (result == 0)
                        dir->oo_compat_dotdot_created = 1;
        }
@@ -3984,8 +4140,8 @@ static int osd_add_dot_dotdot(struct osd_thread_info *info,
  * value, return by respective functions.
  */
 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
-                          struct inode *cinode, const char *name,
-                          const struct dt_rec *fid, struct thandle *th)
+                         struct inode *cinode, const char *name,
+                         const struct lu_fid *fid, struct thandle *th)
 {
         struct osd_thread_info *info   = osd_oti_get(env);
         struct htree_lock      *hlock;
@@ -4000,9 +4156,10 @@ static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
                                            pobj->oo_inode, 0);
                 } else {
                        down_write(&pobj->oo_ext_idx_sem);
-                }
-                rc = osd_add_dot_dotdot(info, pobj, cinode, name,
-                     (struct dt_rec *)lu_object_fid(&pobj->oo_dt.do_lu),
+               }
+
+               rc = osd_add_dot_dotdot(info, pobj, cinode, name,
+                                       lu_object_fid(&pobj->oo_dt.do_lu),
                                         fid, th);
         } else {
                 if (hlock != NULL) {
@@ -4015,11 +4172,10 @@ static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
                if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
                        struct lu_fid *tfid = &info->oti_fid;
 
-                       *tfid = *(const struct lu_fid *)fid;
+                       *tfid = *fid;
                        tfid->f_ver = ~0;
                        rc = __osd_ea_add_rec(info, pobj, cinode, name,
-                                             (const struct dt_rec *)tfid,
-                                             hlock, th);
+                                             tfid, hlock, th);
                } else {
                        rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
                                              hlock, th);
@@ -4047,6 +4203,9 @@ osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
        if (!fid_is_norm(fid) && !fid_is_igif(fid))
                RETURN_EXIT;
 
+       if (scrub->os_pos_current > id->oii_ino)
+               RETURN_EXIT;
+
 again:
        rc = osd_oi_lookup(oti, dev, fid, id, OI_CHECK_FLD);
        if (rc != 0 && rc != -ENOENT)
@@ -4068,12 +4227,13 @@ again:
        }
 
        if (!dev->od_noscrub && ++once == 1) {
-               rc = osd_scrub_start(dev);
-               LCONSOLE_WARN("%.16s: trigger OI scrub by RPC for "DFID
-                             ", rc = %d [2]\n",
-                             LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
-                             PFID(fid), rc);
-               if (rc == 0)
+               rc = osd_scrub_start(dev, SS_AUTO_PARTIAL | SS_CLEAR_DRYRUN |
+                                    SS_CLEAR_FAILOUT);
+               CDEBUG(D_LFSCK | D_CONSOLE, "%.16s: trigger OI scrub by RPC "
+                      "for "DFID", rc = %d [2]\n",
+                      LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
+                      PFID(fid), rc);
+               if (rc == 0 || rc == -EALREADY)
                        goto again;
        }
 
@@ -4105,16 +4265,91 @@ static int osd_fail_fid_lookup(struct osd_thread_info *oti,
        return rc;
 }
 
-int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
-                    struct osd_inode_id *id, const struct lu_fid *fid)
+void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
+                     struct osd_inode_id *id, const struct lu_fid *fid)
 {
        CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
               id->oii_ino, id->oii_gen, info);
        info->oti_cache.oic_lid = *id;
        info->oti_cache.oic_fid = *fid;
        info->oti_cache.oic_dev = osd;
+}
 
-       return 0;
+/**
+ * Get parent FID from the linkEA.
+ *
+ * For a directory which parent resides on remote MDT, to satisfy the
+ * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
+ * the other hand, to make the lookup(..) on the directory can return
+ * the real parent FID, we append the real parent FID after its ".."
+ * name entry in the /REMOTE_PARENT_DIR.
+ *
+ * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
+ * backup. So after the restore, we cannot get the right parent FID from
+ * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
+ * we have stored the real parent FID in the directory object's linkEA,
+ * we can parse the linkEA for the real parent FID.
+ *
+ * \param[in] env      pointer to the thread context
+ * \param[in] obj      pointer to the object to be handled
+ * \param[out]fid      pointer to the buffer to hold the parent FID
+ *
+ * \retval             0 for getting the real parent FID successfully
+ * \retval             negative error number on failure
+ */
+static int osd_get_pfid_from_linkea(const struct lu_env *env,
+                                   struct osd_object *obj,
+                                   struct lu_fid *fid)
+{
+       struct osd_thread_info  *oti    = osd_oti_get(env);
+       struct lu_buf           *buf    = &oti->oti_big_buf;
+       struct dentry           *dentry = &oti->oti_obj_dentry;
+       struct inode            *inode  = obj->oo_inode;
+       struct linkea_data       ldata  = { NULL };
+       int                      rc;
+       ENTRY;
+
+       fid_zero(fid);
+       if (!S_ISDIR(inode->i_mode))
+               RETURN(-EIO);
+
+again:
+       rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
+                            buf->lb_buf, buf->lb_len);
+       if (rc == -ERANGE) {
+               rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
+                                    NULL, 0);
+               if (rc > 0) {
+                       lu_buf_realloc(buf, rc);
+                       if (buf->lb_buf == NULL)
+                               RETURN(-ENOMEM);
+
+                       goto again;
+               }
+       }
+
+       if (unlikely(rc == 0))
+               RETURN(-ENODATA);
+
+       if (rc < 0)
+               RETURN(rc);
+
+       if (unlikely(buf->lb_buf == NULL)) {
+               lu_buf_realloc(buf, rc);
+               if (buf->lb_buf == NULL)
+                       RETURN(-ENOMEM);
+
+               goto again;
+       }
+
+       ldata.ld_buf = buf;
+       rc = linkea_init(&ldata);
+       if (rc == 0) {
+               linkea_first_entry(&ldata);
+               linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
+       }
+
+       RETURN(rc);
 }
 
 /**
@@ -4126,39 +4361,38 @@ int osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
  * \retval -ve, on error
  */
 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
-                             struct dt_rec *rec, const struct dt_key *key)
-{
-        struct inode               *dir    = obj->oo_inode;
-        struct dentry              *dentry;
-        struct ldiskfs_dir_entry_2 *de;
-        struct buffer_head         *bh;
-        struct lu_fid              *fid = (struct lu_fid *) rec;
-        struct htree_lock          *hlock = NULL;
-        int                         ino;
-        int                         rc;
+                            struct dt_rec *rec, const struct dt_key *key)
+{
+       struct inode                    *dir    = obj->oo_inode;
+       struct dentry                   *dentry;
+       struct ldiskfs_dir_entry_2      *de;
+       struct buffer_head              *bh;
+       struct lu_fid                   *fid = (struct lu_fid *) rec;
+       struct htree_lock               *hlock = NULL;
+       int                             ino;
+       int                             rc;
        ENTRY;
 
-        LASSERT(dir->i_op != NULL && dir->i_op->lookup != NULL);
+       LASSERT(dir->i_op != NULL);
+       LASSERT(dir->i_op->lookup != NULL);
 
-        dentry = osd_child_dentry_get(env, obj,
-                                      (char *)key, strlen((char *)key));
+       dentry = osd_child_dentry_get(env, obj,
+                                     (char *)key, strlen((char *)key));
 
-        if (obj->oo_hl_head != NULL) {
-                hlock = osd_oti_get(env)->oti_hlock;
-                ldiskfs_htree_lock(hlock, obj->oo_hl_head,
-                                   dir, LDISKFS_HLOCK_LOOKUP);
-        } else {
+       if (obj->oo_hl_head != NULL) {
+               hlock = osd_oti_get(env)->oti_hlock;
+               ldiskfs_htree_lock(hlock, obj->oo_hl_head,
+                                  dir, LDISKFS_HLOCK_LOOKUP);
+       } else {
                down_read(&obj->oo_ext_idx_sem);
-        }
+       }
 
-        bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
-        if (bh) {
+       bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
+       if (bh) {
                struct osd_thread_info *oti = osd_oti_get(env);
                struct osd_inode_id *id = &oti->oti_id;
                struct osd_idmap_cache *oic = &oti->oti_cache;
                struct osd_device *dev = osd_obj2dev(obj);
-               struct osd_scrub *scrub = &dev->od_scrub;
-               struct scrub_file *sf = &scrub->os_file;
 
                ino = le32_to_cpu(de->inode);
                if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
@@ -4171,10 +4405,18 @@ static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
 
                /* done with de, release bh */
                brelse(bh);
-               if (rc != 0)
-                       rc = osd_ea_fid_get(env, obj, ino, fid, id);
-               else
+               if (rc != 0) {
+                       if (unlikely(ino == osd_remote_parent_ino(dev)))
+                               /* If the parent is on remote MDT, and there
+                                * is no FID-in-dirent, then we have to get
+                                * the parent FID from the linkEA.  */
+                               rc = osd_get_pfid_from_linkea(env, obj, fid);
+                       else
+                               rc = osd_ea_fid_get(env, obj, ino, fid, id);
+               } else {
                        osd_id_gen(id, ino, OSD_OII_NOGEN);
+               }
+
                if (rc != 0) {
                        fid_zero(&oic->oic_fid);
                        GOTO(out, rc);
@@ -4183,16 +4425,8 @@ static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
                if (osd_remote_fid(env, dev, fid))
                        GOTO(out, rc = 0);
 
-               rc = osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id,
-                                     fid);
-               if (rc != 0)
-                       GOTO(out, rc);
-               if ((scrub->os_pos_current <= ino) &&
-                   ((sf->sf_flags & SF_INCONSISTENT) ||
-                    (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
-                    ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
-                                     sf->sf_oi_bitmap)))
-                       osd_consistency_check(oti, dev, oic);
+               osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
+               osd_consistency_check(oti, dev, oic);
        } else {
                rc = -ENOENT;
        }
@@ -4215,9 +4449,9 @@ out:
  * \retval osd_object on success
  * \retval        -ve on error
  */
-struct osd_object *osd_object_find(const struct lu_env *env,
-                                   struct dt_object *dt,
-                                   const struct lu_fid *fid)
+static struct osd_object *osd_object_find(const struct lu_env *env,
+                                         struct dt_object *dt,
+                                         const struct lu_fid *fid)
 {
         struct lu_device  *ludev = dt->do_lu.lo_dev;
         struct osd_object *child = NULL;
@@ -4305,8 +4539,8 @@ static int osd_index_declare_ea_insert(const struct lu_env *env,
                 * calculate how many blocks will be consumed by this index
                 * insert */
                rc = osd_declare_inode_qid(env, i_uid_read(inode),
-                                          i_gid_read(inode), 0,
-                                          oh, true, true, NULL, false);
+                                          i_gid_read(inode), 0, oh,
+                                          osd_dt_obj(dt), true, NULL, false);
        }
 
        if (fid == NULL)
@@ -4346,7 +4580,8 @@ static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
 {
        struct osd_object       *obj = osd_dt_obj(dt);
        struct osd_device       *osd = osd_dev(dt->do_lu.lo_dev);
-       struct lu_fid           *fid = (struct lu_fid *) rec;
+       struct dt_insert_rec    *rec1   = (struct dt_insert_rec *)rec;
+       const struct lu_fid     *fid    = rec1->rec_fid;
        const char              *name = (const char *)key;
        struct osd_thread_info  *oti   = osd_oti_get(env);
        struct osd_inode_id     *id    = &oti->oti_id;
@@ -4355,16 +4590,19 @@ static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
        int                     rc;
        ENTRY;
 
-        LASSERT(osd_invariant(obj));
-       LASSERT(dt_object_exists(dt) && !dt_object_remote(dt));
-        LASSERT(th != NULL);
+       if (!dt_object_exists(dt))
+               RETURN(-ENOENT);
+
+       LASSERT(osd_invariant(obj));
+       LASSERT(!dt_object_remote(dt));
+       LASSERT(th != NULL);
 
        osd_trans_exec_op(env, th, OSD_OT_INSERT);
 
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
-                RETURN(-EACCES);
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_INDEX_INSERT))
+               RETURN(-EACCES);
 
-       LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!", PFID(fid));
+       LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
 
        rc = osd_remote_fid(env, osd, fid);
        if (rc < 0) {
@@ -4393,8 +4631,7 @@ static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
                        child_inode = igrab(omm->omm_remote_parent->d_inode);
                } else {
                        child_inode = osd_create_local_agent_inode(env, osd,
-                                                                  obj, fid,
-                                                                  th);
+                                       obj, fid, rec1->rec_type & S_IFMT, th);
                        if (IS_ERR(child_inode))
                                RETURN(PTR_ERR(child_inode));
                }
@@ -4411,7 +4648,7 @@ static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
                child_inode = igrab(child->oo_inode);
        }
 
-       rc = osd_ea_add_rec(env, obj, child_inode, name, rec, th);
+       rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
 
        CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
               obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
@@ -4434,28 +4671,33 @@ static struct dt_it *osd_it_iam_init(const struct lu_env *env,
                                      __u32 unused,
                                      struct lustre_capa *capa)
 {
-        struct osd_it_iam      *it;
-        struct osd_thread_info *oti = osd_oti_get(env);
-        struct osd_object      *obj = osd_dt_obj(dt);
-        struct lu_object       *lo  = &dt->do_lu;
-        struct iam_path_descr  *ipd;
-        struct iam_container   *bag = &obj->oo_dir->od_container;
-
-        LASSERT(lu_object_exists(lo));
-
-        if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
-                return ERR_PTR(-EACCES);
-
-        it = &oti->oti_it;
-        ipd = osd_it_ipd_get(env, bag);
-        if (likely(ipd != NULL)) {
-                it->oi_obj = obj;
-                it->oi_ipd = ipd;
-                lu_object_get(lo);
-                iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
-                return (struct dt_it *)it;
-        }
-        return ERR_PTR(-ENOMEM);
+       struct osd_it_iam      *it;
+       struct osd_object      *obj = osd_dt_obj(dt);
+       struct lu_object       *lo  = &dt->do_lu;
+       struct iam_path_descr  *ipd;
+       struct iam_container   *bag = &obj->oo_dir->od_container;
+
+       if (!dt_object_exists(dt))
+               return ERR_PTR(-ENOENT);
+
+       if (osd_object_auth(env, dt, capa, CAPA_OPC_BODY_READ))
+               return ERR_PTR(-EACCES);
+
+       OBD_ALLOC_PTR(it);
+       if (it == NULL)
+               return ERR_PTR(-ENOMEM);
+
+       ipd = osd_it_ipd_get(env, bag);
+       if (likely(ipd != NULL)) {
+               it->oi_obj = obj;
+               it->oi_ipd = ipd;
+               lu_object_get(lo);
+               iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
+               return (struct dt_it *)it;
+       } else {
+               OBD_FREE_PTR(it);
+               return ERR_PTR(-ENOMEM);
+       }
 }
 
 /**
@@ -4464,12 +4706,13 @@ static struct dt_it *osd_it_iam_init(const struct lu_env *env,
 
 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
 {
-        struct osd_it_iam *it = (struct osd_it_iam *)di;
-        struct osd_object *obj = it->oi_obj;
+       struct osd_it_iam       *it  = (struct osd_it_iam *)di;
+       struct osd_object       *obj = it->oi_obj;
 
-        iam_it_fini(&it->oi_it);
-        osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
-        lu_object_put(env, &obj->oo_dt.do_lu);
+       iam_it_fini(&it->oi_it);
+       osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
+       lu_object_put(env, &obj->oo_dt.do_lu);
+       OBD_FREE_PTR(it);
 }
 
 /**
@@ -4707,32 +4950,45 @@ static const struct dt_index_operations osd_index_iam_ops = {
  *
  */
 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
-                                    struct dt_object *dt,
-                                    __u32 attr,
-                                    struct lustre_capa *capa)
-{
-        struct osd_object       *obj  = osd_dt_obj(dt);
-        struct osd_thread_info  *info = osd_oti_get(env);
-        struct osd_it_ea        *it   = &info->oti_it_ea;
-       struct file             *file = &it->oie_file;
-        struct lu_object        *lo   = &dt->do_lu;
-        struct dentry           *obj_dentry = &info->oti_it_dentry;
-        ENTRY;
-        LASSERT(lu_object_exists(lo));
+                                   struct dt_object *dt,
+                                   __u32 attr,
+                                   struct lustre_capa *capa)
+{
+       struct osd_object       *obj  = osd_dt_obj(dt);
+       struct osd_thread_info  *info = osd_oti_get(env);
+       struct osd_it_ea        *oie;
+       struct file             *file;
+       struct lu_object        *lo   = &dt->do_lu;
+       struct dentry           *obj_dentry;
+       ENTRY;
 
-        obj_dentry->d_inode = obj->oo_inode;
-        obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
-        obj_dentry->d_name.hash = 0;
+       if (!dt_object_exists(dt))
+               RETURN(ERR_PTR(-ENOENT));
 
-        it->oie_rd_dirent       = 0;
-        it->oie_it_dirent       = 0;
-        it->oie_dirent          = NULL;
-        it->oie_buf             = info->oti_it_ea_buf;
-        it->oie_obj             = obj;
+       OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
+       if (oie == NULL)
+               RETURN(ERR_PTR(-ENOMEM));
+       obj_dentry = &oie->oie_dentry;
+
+       obj_dentry->d_inode = obj->oo_inode;
+       obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
+       obj_dentry->d_name.hash = 0;
+
+       oie->oie_rd_dirent       = 0;
+       oie->oie_it_dirent       = 0;
+       oie->oie_dirent          = NULL;
+       if (unlikely(!info->oti_it_ea_buf_used)) {
+               oie->oie_buf = info->oti_it_ea_buf;
+               info->oti_it_ea_buf_used = 1;
+       } else {
+               OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
+               if (oie->oie_buf == NULL)
+                       RETURN(ERR_PTR(-ENOMEM));
+       }
+       oie->oie_obj             = obj;
+
+       file = &oie->oie_file;
 
-       /* Reset the "file" totally to avoid to reuse any old value from
-        * former readdir handling, the "file->f_pos" should be zero. */
-       memset(file, 0, sizeof(*file));
        /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
        if (attr & LUDA_64BITHASH)
                file->f_mode    = FMODE_64BITHASH;
@@ -4744,7 +5000,7 @@ static struct dt_it *osd_it_ea_init(const struct lu_env *env,
        set_file_inode(file, obj->oo_inode);
 
        lu_object_get(lo);
-       RETURN((struct dt_it *) it);
+       RETURN((struct dt_it *) oie);
 }
 
 /**
@@ -4754,14 +5010,20 @@ static struct dt_it *osd_it_ea_init(const struct lu_env *env,
  */
 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
 {
-        struct osd_it_ea     *it   = (struct osd_it_ea *)di;
-        struct osd_object    *obj  = it->oie_obj;
-        struct inode       *inode  = obj->oo_inode;
+       struct osd_thread_info  *info = osd_oti_get(env);
+       struct osd_it_ea        *oie    = (struct osd_it_ea *)di;
+       struct osd_object       *obj    = oie->oie_obj;
+       struct inode            *inode  = obj->oo_inode;
 
-        ENTRY;
-        it->oie_file.f_op->release(inode, &it->oie_file);
-        lu_object_put(env, &obj->oo_dt.do_lu);
-        EXIT;
+       ENTRY;
+       oie->oie_file.f_op->release(inode, &oie->oie_file);
+       lu_object_put(env, &obj->oo_dt.do_lu);
+       if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
+               OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
+       else
+               info->oti_it_ea_buf_used = 0;
+       OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
+       EXIT;
 }
 
 /**
@@ -5006,22 +5268,12 @@ osd_dirent_update(handle_t *jh, struct super_block *sb,
        LASSERT(de->rec_len >= de->name_len + sizeof(struct osd_fid_pack));
 
        rc = ldiskfs_journal_get_write_access(jh, bh);
-       if (rc != 0) {
-               CERROR("%.16s: fail to write access for update dirent: "
-                      "name = %.*s, rc = %d\n",
-                      LDISKFS_SB(sb)->s_es->s_volume_name,
-                      ent->oied_namelen, ent->oied_name, rc);
+       if (rc != 0)
                RETURN(rc);
-       }
 
        rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
        fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
-       rc = ldiskfs_journal_dirty_metadata(jh, bh);
-       if (rc != 0)
-               CERROR("%.16s: fail to dirty metadata for update dirent: "
-                      "name = %.*s, rc = %d\n",
-                      LDISKFS_SB(sb)->s_es->s_volume_name,
-                      ent->oied_namelen, ent->oied_name, rc);
+       rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
 
        RETURN(rc);
 }
@@ -5070,13 +5322,8 @@ osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
        if (osd_dirent_has_space(de->rec_len, ent->oied_namelen,
                                 dir->i_sb->s_blocksize)) {
                rc = ldiskfs_journal_get_write_access(jh, bh);
-               if (rc != 0) {
-                       CERROR("%.16s: fail to write access for reinsert "
-                              "dirent: name = %.*s, rc = %d\n",
-                              LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
-                              ent->oied_namelen, ent->oied_name, rc);
+               if (rc != 0)
                        RETURN(rc);
-               }
 
                de->name[de->name_len] = 0;
                rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
@@ -5084,39 +5331,30 @@ osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
                fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
                de->file_type |= LDISKFS_DIRENT_LUFID;
 
-               rc = ldiskfs_journal_dirty_metadata(jh, bh);
-               if (rc != 0)
-                       CERROR("%.16s: fail to dirty metadata for reinsert "
-                              "dirent: name = %.*s, rc = %d\n",
-                              LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
-                              ent->oied_namelen, ent->oied_name, rc);
+               rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
 
                RETURN(rc);
        }
 
        rc = ldiskfs_delete_entry(jh, dir, de, bh);
-       if (rc != 0) {
-               CERROR("%.16s: fail to delete entry for reinsert dirent: "
-                      "name = %.*s, rc = %d\n",
-                      LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
-                      ent->oied_namelen, ent->oied_name, rc);
+       if (rc != 0)
                RETURN(rc);
-       }
 
        dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
                                           ent->oied_namelen);
        ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
-       osd_get_ldiskfs_dirent_param(ldp, (const struct dt_rec *)fid);
+       osd_get_ldiskfs_dirent_param(ldp, fid);
        dentry->d_fsdata = (void *)ldp;
        ll_vfs_dq_init(dir);
        rc = osd_ldiskfs_add_entry(jh, dentry, inode, hlock);
        /* It is too bad, we cannot reinsert the name entry back.
         * That means we lose it! */
        if (rc != 0)
-               CERROR("%.16s: fail to insert entry for reinsert dirent: "
-                      "name = %.*s, rc = %d\n",
+               CDEBUG(D_LFSCK, "%.16s: fail to reinsert the dirent, "
+                      "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
                       LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
-                      ent->oied_namelen, ent->oied_name, rc);
+                      dir->i_ino, dir->i_generation,
+                      ent->oied_namelen, ent->oied_name, PFID(fid), rc);
 
        RETURN(rc);
 }
@@ -5173,14 +5411,15 @@ osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
                  osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
 
 again:
-       if (dev->od_dirent_journal) {
+       if (dev->od_dirent_journal != 0) {
                jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
                if (IS_ERR(jh)) {
                        rc = PTR_ERR(jh);
-                       CERROR("%.16s: fail to start trans for dirent "
-                              "check_repair: credits %d, name %.*s, rc %d\n",
-                              devname, credits, ent->oied_namelen,
-                              ent->oied_name, rc);
+                       CDEBUG(D_LFSCK, "%.16s: fail to start trans for dirent "
+                              "check_repair, dir = %lu/%u, credits = %d, "
+                              "name = %.*s: rc = %d\n",
+                              devname, dir->i_ino, dir->i_generation, credits,
+                              ent->oied_namelen, ent->oied_name, rc);
                        RETURN(rc);
                }
 
@@ -5221,18 +5460,18 @@ again:
        inode = osd_iget(info, dev, id);
        if (IS_ERR(inode)) {
                rc = PTR_ERR(inode);
-               if (rc == -ENOENT || rc == -ESTALE) {
-                       *attr |= LUDA_IGNORE;
-                       rc = 0;
-               }
+               if (rc == -ENOENT || rc == -ESTALE)
+                       rc = 1;
+               else
+                       CDEBUG(D_LFSCK, "%.16s: fail to iget for dirent "
+                              "check_repair, dir = %lu/%u, name = %.*s: "
+                              "rc = %d\n",
+                              devname, dir->i_ino, dir->i_generation,
+                              ent->oied_namelen, ent->oied_name, rc);
 
                GOTO(out_journal, rc);
        }
 
-       /* skip the REMOTE_PARENT_DIR. */
-       if (inode == dev->od_mdt_map->omm_remote_parent->d_inode)
-               GOTO(out_inode, rc = 0);
-
        rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
        if (rc == 0) {
                LASSERT(!(lma->lma_compat & LMAC_NOT_IN_OI));
@@ -5248,7 +5487,7 @@ again:
                                GOTO(out_inode, rc = 0);
                        }
 
-                       if (!dev->od_dirent_journal) {
+                       if (dev->od_dirent_journal == 0) {
                                iput(inode);
                                brelse(bh);
                                if (hlock != NULL)
@@ -5265,6 +5504,13 @@ again:
                        rc = osd_dirent_update(jh, sb, ent, fid, bh, de);
                        if (rc == 0)
                                *attr |= LUDA_REPAIR;
+                       else
+                               CDEBUG(D_LFSCK, "%.16s: fail to update FID "
+                                      "in the dirent, dir = %lu/%u, "
+                                      "name = %.*s, "DFID": rc = %d\n",
+                                      devname, dir->i_ino, dir->i_generation,
+                                      ent->oied_namelen, ent->oied_name,
+                                      PFID(fid), rc);
                } else {
                        /* Do not repair under dryrun mode. */
                        if (*attr & LUDA_VERIFY_DRYRUN) {
@@ -5273,7 +5519,7 @@ again:
                                GOTO(out_inode, rc = 0);
                        }
 
-                       if (!dev->od_dirent_journal) {
+                       if (dev->od_dirent_journal == 0) {
                                iput(inode);
                                brelse(bh);
                                if (hlock != NULL)
@@ -5291,6 +5537,13 @@ again:
                                                 fid, bh, de, hlock);
                        if (rc == 0)
                                *attr |= LUDA_REPAIR;
+                       else
+                               CDEBUG(D_LFSCK, "%.16s: fail to append FID "
+                                      "after the dirent, dir = %lu/%u, "
+                                      "name = %.*s, "DFID": rc = %d\n",
+                                      devname, dir->i_ino, dir->i_generation,
+                                      ent->oied_namelen, ent->oied_name,
+                                      PFID(fid), rc);
                }
        } else if (rc == -ENODATA) {
                /* Do not repair under dryrun mode. */
@@ -5305,7 +5558,7 @@ again:
                        GOTO(out_inode, rc = 0);
                }
 
-               if (!dev->od_dirent_journal) {
+               if (dev->od_dirent_journal == 0) {
                        iput(inode);
                        brelse(bh);
                        if (hlock != NULL)
@@ -5323,6 +5576,13 @@ again:
                        rc = osd_ea_fid_set(info, inode, fid, 0, 0);
                        if (rc == 0)
                                *attr |= LUDA_REPAIR;
+                       else
+                               CDEBUG(D_LFSCK, "%.16s: fail to set LMA for "
+                                      "update dirent, dir = %lu/%u, "
+                                      "name = %.*s, "DFID": rc = %d\n",
+                                      devname, dir->i_ino, dir->i_generation,
+                                      ent->oied_namelen, ent->oied_name,
+                                      PFID(fid), rc);
                } else {
                        lu_igif_build(fid, inode->i_ino, inode->i_generation);
                        /* It is probably IGIF object. Only aappend the
@@ -5331,6 +5591,13 @@ again:
                                                 fid, bh, de, hlock);
                        if (rc == 0)
                                *attr |= LUDA_UPGRADE;
+                       else
+                               CDEBUG(D_LFSCK, "%.16s: fail to append IGIF "
+                                      "after the dirent, dir = %lu/%u, "
+                                      "name = %.*s, "DFID": rc = %d\n",
+                                      devname, dir->i_ino, dir->i_generation,
+                                      ent->oied_namelen, ent->oied_name,
+                                      PFID(fid), rc);
                }
        }
 
@@ -5344,7 +5611,7 @@ out_journal:
        if (hlock != NULL) {
                ldiskfs_htree_unlock(hlock);
        } else {
-               if (dev->od_dirent_journal)
+               if (dev->od_dirent_journal != 0)
                        up_write(&obj->oo_ext_idx_sem);
                else
                        up_read(&obj->oo_ext_idx_sem);
@@ -5373,22 +5640,23 @@ static inline int osd_it_ea_rec(const struct lu_env *env,
        struct osd_it_ea       *it    = (struct osd_it_ea *)di;
        struct osd_object      *obj   = it->oie_obj;
        struct osd_device      *dev   = osd_obj2dev(obj);
-       struct osd_scrub       *scrub = &dev->od_scrub;
-       struct scrub_file      *sf    = &scrub->os_file;
        struct osd_thread_info *oti   = osd_oti_get(env);
        struct osd_inode_id    *id    = &oti->oti_id;
-       struct osd_idmap_cache *oic   = &oti->oti_cache;
        struct lu_fid          *fid   = &it->oie_dirent->oied_fid;
        struct lu_dirent       *lde   = (struct lu_dirent *)dtrec;
        __u32                   ino   = it->oie_dirent->oied_ino;
        int                     rc    = 0;
        ENTRY;
 
+       LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
+
        if (attr & LUDA_VERIFY) {
-               attr |= LUDA_TYPE;
-               if (unlikely(ino == osd_sb(dev)->s_root->d_inode->i_ino)) {
+               if (unlikely(ino == osd_remote_parent_ino(dev))) {
                        attr |= LUDA_IGNORE;
-                       rc = 0;
+                       /* If the parent is on remote MDT, and there
+                        * is no FID-in-dirent, then we have to get
+                        * the parent FID from the linkEA.  */
+                       osd_get_pfid_from_linkea(env, obj, fid);
                } else {
                        rc = osd_dirent_check_repair(env, obj, it, fid, id,
                                                     &attr);
@@ -5402,7 +5670,13 @@ static inline int osd_it_ea_rec(const struct lu_env *env,
                                   it->oie_dirent->oied_name[1] != '.'))
                                RETURN(-ENOENT);
 
-                       rc = osd_ea_fid_get(env, obj, ino, fid, id);
+                       if (unlikely(ino == osd_remote_parent_ino(dev)))
+                               /* If the parent is on remote MDT, and there
+                                * is no FID-in-dirent, then we have to get
+                                * the parent FID from the linkEA.  */
+                               rc = osd_get_pfid_from_linkea(env, obj, fid);
+                       else
+                               rc = osd_ea_fid_get(env, obj, ino, fid, id);
                } else {
                        osd_id_gen(id, ino, OSD_OII_NOGEN);
                }
@@ -5420,17 +5694,10 @@ static inline int osd_it_ea_rec(const struct lu_env *env,
        if (osd_remote_fid(env, dev, fid))
                RETURN(0);
 
-       if (likely(!(attr & LUDA_IGNORE)))
-               rc = osd_add_oi_cache(oti, dev, id, fid);
-
-       if (!(attr & LUDA_VERIFY) &&
-           (scrub->os_pos_current <= ino) &&
-           ((sf->sf_flags & SF_INCONSISTENT) ||
-            (sf->sf_flags & SF_UPGRADE && fid_is_igif(fid)) ||
-            ldiskfs_test_bit(osd_oi_fid2idx(dev, fid), sf->sf_oi_bitmap)))
-               osd_consistency_check(oti, dev, oic);
+       if (likely(!(attr & LUDA_IGNORE) && rc == 0))
+               osd_add_oi_cache(oti, dev, id, fid);
 
-       RETURN(rc);
+       RETURN(rc > 0 ? 0 : rc);
 }
 
 /**
@@ -5590,6 +5857,7 @@ static void osd_key_fini(const struct lu_context *ctx,
        OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
        lu_buf_free(&info->oti_iobuf.dr_pg_buf);
        lu_buf_free(&info->oti_iobuf.dr_bl_buf);
+       lu_buf_free(&info->oti_big_buf);
        OBD_FREE_PTR(info);
 }
 
@@ -5858,6 +6126,8 @@ static int osd_device_init0(const struct lu_env *env,
        if (server_name_is_ost(o->od_svname))
                o->od_is_ost = 1;
 
+       o->od_full_scrub_ratio = OFSR_DEFAULT;
+       o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
        rc = osd_mount(env, o, cfg);
        if (rc != 0)
                GOTO(out_capa, rc);
@@ -5875,9 +6145,6 @@ static int osd_device_init0(const struct lu_env *env,
        if (rc != 0)
                GOTO(out_site, rc);
 
-       /* self-repair LMA by default */
-       o->od_lma_self_repair = 1;
-
        INIT_LIST_HEAD(&o->od_ios_list);
        /* setup scrub, including OI files initialization */
        rc = osd_scrub_setup(env, o);
@@ -5891,7 +6158,8 @@ static int osd_device_init0(const struct lu_env *env,
                GOTO(out_scrub, rc);
        }
 
-       LASSERT(l->ld_site->ls_linkage.next && l->ld_site->ls_linkage.prev);
+       LASSERT(l->ld_site->ls_linkage.next != NULL);
+       LASSERT(l->ld_site->ls_linkage.prev != NULL);
 
        /* initialize quota slave instance */
        o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
@@ -5984,13 +6252,12 @@ static int osd_process_config(const struct lu_env *env,
                break;
        case LCFG_PARAM:
                LASSERT(&o->od_dt_dev);
-               rc = class_process_proc_seq_param(PARAM_OSD,
-                                                 lprocfs_osd_obd_vars,
-                                                 cfg, &o->od_dt_dev);
+               rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
+                                             cfg, &o->od_dt_dev);
                if (rc > 0 || rc == -ENOSYS)
-                       rc = class_process_proc_seq_param(PARAM_OST,
-                                                         lprocfs_osd_obd_vars,
-                                                         cfg, &o->od_dt_dev);
+                       rc = class_process_proc_param(PARAM_OST,
+                                                     lprocfs_osd_obd_vars,
+                                                     cfg, &o->od_dt_dev);
                break;
        default:
                rc = -ENOSYS;
@@ -6068,10 +6335,12 @@ static int osd_obd_disconnect(struct obd_export *exp)
 }
 
 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
-                       struct lu_device *dev)
+                      struct lu_device *dev)
 {
-       struct osd_device *osd = osd_dev(dev);
-       int                result = 0;
+       struct osd_device       *osd    = osd_dev(dev);
+       struct lr_server_data   *lsd    =
+                       &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
+       int                      result = 0;
        ENTRY;
 
        if (osd->od_quota_slave != NULL) {
@@ -6081,13 +6350,28 @@ static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
                        RETURN(result);
        }
 
+       if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
+               if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
+                       osd->od_index_in_idif = 1;
+               } else {
+                       osd->od_index_in_idif = 0;
+                       result = osd_register_proc_index_in_idif(osd);
+                       if (result != 0)
+                               RETURN(result);
+               }
+#else
+               osd->od_index_in_idif = 1;
+#endif
+       }
+
        result = osd_fid_init(env, osd);
 
        RETURN(result);
 }
 
-int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
-                 struct lu_fid *fid, struct md_op_data *op_data)
+static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
+                        struct lu_fid *fid, struct md_op_data *op_data)
 {
        struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
 
@@ -6124,13 +6408,21 @@ static const struct lu_device_type_operations osd_device_type_ops = {
         .ldto_device_fini    = osd_device_fini
 };
 
-struct lu_device_type osd_device_type = {
+static struct lu_device_type osd_device_type = {
         .ldt_tags     = LU_DEVICE_DT,
        .ldt_name     = LUSTRE_OSD_LDISKFS_NAME,
         .ldt_ops      = &osd_device_type_ops,
         .ldt_ctx_tags = LCT_LOCAL,
 };
 
+static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
+{
+       struct osd_device *osd = osd_dev(obd->obd_lu_dev);
+       struct super_block *sb = osd_sb(osd);
+
+       return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
+}
+
 /*
  * lprocfs legacy support.
  */
@@ -6139,6 +6431,7 @@ static struct obd_ops osd_obd_device_ops = {
        .o_connect      = osd_obd_connect,
        .o_disconnect   = osd_obd_disconnect,
        .o_fid_alloc    = osd_fid_alloc,
+       .o_health_check = osd_health_check,
 };
 
 static int __init osd_mod_init(void)
@@ -6153,9 +6446,6 @@ static int __init osd_mod_init(void)
 
        rc = class_register_type(&osd_obd_device_ops, NULL, true,
                                 lprocfs_osd_module_vars,
-#ifndef HAVE_ONLY_PROCFS_SEQ
-                                NULL,
-#endif
                                 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
        if (rc)
                lu_kmem_fini(ldiskfs_caches);