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Revert "LU-4199 llite: Init lli_lmv_md field of struct ll_inode_info"
[fs/lustre-release.git] / lustre / llite / llite_lib.c
index ea33cda..7d2054c 100644 (file)
@@ -93,19 +93,18 @@ static struct ll_sb_info *ll_init_sbi(void)
 
         si_meminfo(&si);
         pages = si.totalram - si.totalhigh;
-       if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) {
-               lru_page_max = pages / 2;
-       } else {
-               lru_page_max = (pages / 4) * 3;
-       }
+       lru_page_max = pages / 2;
 
-       /* initialize lru data */
+       /* initialize ll_cache data */
        cfs_atomic_set(&sbi->ll_cache.ccc_users, 0);
        sbi->ll_cache.ccc_lru_max = lru_page_max;
        cfs_atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max);
        spin_lock_init(&sbi->ll_cache.ccc_lru_lock);
        CFS_INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru);
 
+       cfs_atomic_set(&sbi->ll_cache.ccc_unstable_nr, 0);
+       init_waitqueue_head(&sbi->ll_cache.ccc_unstable_waitq);
+
         sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
                                            SBI_DEFAULT_READAHEAD_MAX);
         sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
@@ -162,11 +161,6 @@ void ll_free_sbi(struct super_block *sb)
        EXIT;
 }
 
-static struct dentry_operations ll_d_root_ops = {
-        .d_compare = ll_dcompare,
-        .d_revalidate = ll_revalidate_nd,
-};
-
 static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                                     struct vfsmount *mnt)
 {
@@ -200,13 +194,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                 RETURN(-ENOMEM);
         }
 
-        if (proc_lustre_fs_root) {
-                err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
-                                                  dt, md);
-                if (err < 0)
-                        CERROR("could not register mount in /proc/fs/lustre\n");
-        }
-
         /* indicate the features supported by this client */
         data->ocd_connect_flags = OBD_CONNECT_IBITS    | OBD_CONNECT_NODEVOH  |
                                   OBD_CONNECT_ATTRFID  |
@@ -218,7 +205,10 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                                   OBD_CONNECT_FULL20   | OBD_CONNECT_64BITHASH|
                                  OBD_CONNECT_EINPROGRESS |
                                  OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
-                                 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS;
+                                 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS |
+                                 OBD_CONNECT_MAX_EASIZE |
+                                 OBD_CONNECT_FLOCK_DEAD |
+                                 OBD_CONNECT_DISP_STRIPE;
 
         if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
                 data->ocd_connect_flags |= OBD_CONNECT_SOM;
@@ -389,9 +379,17 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
        else
                sbi->ll_md_brw_size = PAGE_CACHE_SIZE;
 
-       if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) {
-               LCONSOLE_INFO("Layout lock feature supported.\n");
+       if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK)
                sbi->ll_flags |= LL_SBI_LAYOUT_LOCK;
+
+       if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
+               if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
+                       LCONSOLE_INFO("%s: disabling xattr cache due to "
+                                     "unknown maximum xattr size.\n", dt);
+               } else {
+                       sbi->ll_flags |= LL_SBI_XATTR_CACHE;
+                       sbi->ll_xattr_cache_enabled = 1;
+               }
        }
 
        obd = class_name2obd(dt);
@@ -494,7 +492,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 
        /* make root inode
         * XXX: move this to after cbd setup? */
-       valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
+       valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA |
+               OBD_MD_FLMODEASIZE;
        if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
                valid |= OBD_MD_FLRMTPERM;
        else if (sbi->ll_flags & LL_SBI_ACL)
@@ -578,13 +577,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
                        ll_get_fsname(sb, NULL, 0));
                GOTO(out_root, err = -ENOMEM);
        }
-
 #ifdef HAVE_DCACHE_LOCK
-       sb->s_root->d_op = &ll_d_root_ops;
-#else
-       /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
-       d_set_d_op(sb->s_root, &ll_d_root_ops);
-       sb->s_d_op = &ll_d_ops;
+       sb->s_root->d_op = &ll_d_ops;
 #endif
 
         sbi->ll_sdev_orig = sb->s_dev;
@@ -595,15 +589,22 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
         /* s_dev is also used in lt_compare() to compare two fs, but that is
          * only a node-local comparison. */
         uuid = obd_get_uuid(sbi->ll_md_exp);
-       if (uuid != NULL) {
+       if (uuid != NULL)
                sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
-               get_uuid2fsid(uuid->uuid, strlen(uuid->uuid), &sbi->ll_fsid);
-       }
 
         if (data != NULL)
                 OBD_FREE_PTR(data);
         if (osfs != NULL)
                 OBD_FREE_PTR(osfs);
+       if (proc_lustre_fs_root != NULL) {
+               err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
+                                                 dt, md);
+               if (err < 0) {
+                       CERROR("%s: could not register mount in lprocfs: "
+                              "rc = %d\n", ll_get_fsname(sb, NULL, 0), err);
+                       err = 0;
+               }
+       }
 
         RETURN(err);
 out_root:
@@ -626,7 +627,6 @@ out:
                 OBD_FREE_PTR(data);
         if (osfs != NULL)
                 OBD_FREE_PTR(osfs);
-        lprocfs_unregister_mountpoint(sbi);
         return err;
 }
 
@@ -654,8 +654,10 @@ void ll_dump_inode(struct inode *inode)
        ll_d_hlist_for_each(tmp, &inode->i_dentry)
                dentry_count++;
 
-       CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
-              inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
+       CERROR("%s: inode %p dump: dev=%s fid="DFID
+              " mode=%o count=%u, %d dentries\n",
+              ll_get_fsname(inode->i_sb, NULL, 0), inode,
+              ll_i2mdexp(inode)->exp_obd->obd_name, PFID(ll_inode2fid(inode)),
               inode->i_mode, atomic_read(&inode->i_count), dentry_count);
 }
 
@@ -673,7 +675,7 @@ void lustre_dump_dentry(struct dentry *dentry, int recur)
                " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
                dentry->d_name.len, dentry->d_name.name,
                dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
-              dentry->d_parent, dentry->d_inode, d_refcount(dentry),
+              dentry->d_parent, dentry->d_inode, d_count(dentry),
                dentry->d_flags, dentry->d_fsdata, subdirs);
         if (dentry->d_inode != NULL)
                 ll_dump_inode(dentry->d_inode);
@@ -818,22 +820,22 @@ static int ll_options(char *options, int *flags)
                         *flags &= ~tmp;
                         goto next;
                 }
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 5, 50, 0)
-                tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
-                if (tmp) {
-                        /* Ignore deprecated mount option.  The client will
-                         * always try to mount with ACL support, whether this
-                         * is used depends on whether server supports it. */
-                        LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
-                                                  "mount option 'acl'.\n");
-                        goto next;
-                }
-                tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
-                if (tmp) {
-                        LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
-                                                  "mount option 'noacl'.\n");
-                        goto next;
-                }
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 6, 51, 0)
+               tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
+               if (tmp) {
+                       /* Ignore deprecated mount option.  The client will
+                        * always try to mount with ACL support, whether this
+                        * is used depends on whether server supports it. */
+                       LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
+                                                 "mount option 'acl'.\n");
+                       goto next;
+               }
+               tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
+               if (tmp) {
+                       LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
+                                                 "mount option 'noacl'.\n");
+                       goto next;
+               }
 #else
 #warning "{no}acl options have been deprecated since 1.8, please remove them"
 #endif
@@ -947,6 +949,9 @@ void ll_lli_init(struct ll_inode_info *lli)
        lli->lli_layout_gen = LL_LAYOUT_GEN_NONE;
        lli->lli_clob = NULL;
 
+       init_rwsem(&lli->lli_xattrs_list_rwsem);
+       mutex_init(&lli->lli_xattrs_enq_lock);
+
        LASSERT(lli->lli_vfs_inode.i_mode != 0);
        if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
                mutex_init(&lli->lli_readdir_mutex);
@@ -999,15 +1004,15 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
         if (cfg == NULL)
                 RETURN(-ENOMEM);
 
-        cfs_module_get();
+       try_module_get(THIS_MODULE);
 
-        /* client additional sb info */
-        lsi->lsi_llsbi = sbi = ll_init_sbi();
-        if (!sbi) {
-                cfs_module_put(THIS_MODULE);
-                OBD_FREE_PTR(cfg);
-                RETURN(-ENOMEM);
-        }
+       /* client additional sb info */
+       lsi->lsi_llsbi = sbi = ll_init_sbi();
+       if (!sbi) {
+               module_put(THIS_MODULE);
+               OBD_FREE_PTR(cfg);
+               RETURN(-ENOMEM);
+       }
 
         err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
         if (err)
@@ -1023,6 +1028,10 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
                GOTO(out_free, err);
 
         sb->s_bdi = &lsi->lsi_bdi;
+#ifndef HAVE_DCACHE_LOCK
+       /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
+       sb->s_d_op = &ll_d_ops;
+#endif
 
         /* Generate a string unique to this super, in case some joker tries
            to mount the same fs at two mount points.
@@ -1032,10 +1041,8 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
        cfg->cfg_callback = class_config_llog_handler;
         /* set up client obds */
         err = lustre_process_log(sb, profilenm, cfg);
-        if (err < 0) {
-                CERROR("Unable to process log: %d\n", err);
-                GOTO(out_free, err);
-        }
+       if (err < 0)
+               GOTO(out_free, err);
 
         /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
         lprof = class_get_profile(profilenm);
@@ -1080,12 +1087,12 @@ void lu_context_keys_dump(void);
 
 void ll_put_super(struct super_block *sb)
 {
-        struct config_llog_instance cfg;
+       struct config_llog_instance cfg, params_cfg;
         struct obd_device *obd;
         struct lustre_sb_info *lsi = s2lsi(sb);
         struct ll_sb_info *sbi = ll_s2sbi(sb);
         char *profilenm = get_profile_name(sb);
-        int force = 1, next;
+       int ccc_count, next, force = 1, rc = 0;
         ENTRY;
 
         CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
@@ -1095,12 +1102,28 @@ void ll_put_super(struct super_block *sb)
         cfg.cfg_instance = sb;
         lustre_end_log(sb, profilenm, &cfg);
 
+       params_cfg.cfg_instance = sb;
+       lustre_end_log(sb, PARAMS_FILENAME, &params_cfg);
+
         if (sbi->ll_md_exp) {
                 obd = class_exp2obd(sbi->ll_md_exp);
                 if (obd)
                         force = obd->obd_force;
         }
 
+       /* Wait for unstable pages to be committed to stable storage */
+       if (force == 0) {
+               struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+               rc = l_wait_event(sbi->ll_cache.ccc_unstable_waitq,
+                       cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr) == 0,
+                       &lwi);
+       }
+
+       ccc_count = cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr);
+       if (force == 0 && rc != -EINTR)
+               LASSERTF(ccc_count == 0, "count: %i\n", ccc_count);
+
+
         /* We need to set force before the lov_disconnect in
            lustre_common_put_super, since l_d cleans up osc's as well. */
         if (force) {
@@ -1135,11 +1158,13 @@ void ll_put_super(struct super_block *sb)
         ll_free_sbi(sb);
         lsi->lsi_llsbi = NULL;
 
-        lustre_common_put_super(sb);
+       lustre_common_put_super(sb);
 
-        cfs_module_put(THIS_MODULE);
+       cl_env_cache_purge(~0);
 
-        EXIT;
+       module_put(THIS_MODULE);
+
+       EXIT;
 } /* client_put_super */
 
 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
@@ -1189,14 +1214,220 @@ struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
         return inode;
 }
 
+static void ll_dir_clear_lsm_md(struct inode *inode)
+{
+       struct ll_inode_info *lli = ll_i2info(inode);
+
+       LASSERT(S_ISDIR(inode->i_mode));
+
+       if (lli->lli_lsm_md != NULL) {
+               lmv_free_memmd(lli->lli_lsm_md);
+               lli->lli_lsm_md = NULL;
+       }
+}
+
+static struct inode *ll_iget_anon_dir(struct super_block *sb,
+                                     const struct lu_fid *fid,
+                                     struct lustre_md *md)
+{
+       struct ll_sb_info       *sbi = ll_s2sbi(sb);
+       struct mdt_body         *body = md->body;
+       struct inode            *inode;
+       ino_t                   ino;
+       ENTRY;
+
+       ino = cl_fid_build_ino(fid, sbi->ll_flags & LL_SBI_32BIT_API);
+       inode = iget_locked(sb, ino);
+       if (inode == NULL) {
+               CERROR("%s: failed get simple inode "DFID": rc = -ENOENT\n",
+                      ll_get_fsname(sb, NULL, 0), PFID(fid));
+               RETURN(ERR_PTR(-ENOENT));
+       }
+
+       if (inode->i_state & I_NEW) {
+               struct ll_inode_info *lli = ll_i2info(inode);
+               struct lmv_stripe_md *lsm = md->lmv;
+
+               inode->i_mode = (inode->i_mode & ~S_IFMT) |
+                               (body->mode & S_IFMT);
+               LASSERTF(S_ISDIR(inode->i_mode), "Not slave inode "DFID"\n",
+                        PFID(fid));
+
+               LTIME_S(inode->i_mtime) = 0;
+               LTIME_S(inode->i_atime) = 0;
+               LTIME_S(inode->i_ctime) = 0;
+               inode->i_rdev = 0;
+
+               /* initializing backing dev info. */
+               inode->i_mapping->backing_dev_info =
+                                               &s2lsi(inode->i_sb)->lsi_bdi;
+               inode->i_op = &ll_dir_inode_operations;
+               inode->i_fop = &ll_dir_operations;
+               lli->lli_fid = *fid;
+               ll_lli_init(lli);
+
+               LASSERT(lsm != NULL);
+               /* master stripe FID */
+               lli->lli_pfid = lsm->lsm_md_oinfo[0].lmo_fid;
+               CDEBUG(D_INODE, "lli %p master "DFID" slave "DFID"\n",
+                      lli, PFID(fid), PFID(&lli->lli_pfid));
+               unlock_new_inode(inode);
+       }
+
+       RETURN(inode);
+}
+
+static int ll_init_lsm_md(struct inode *inode, struct lustre_md *md)
+{
+       struct lu_fid *fid;
+       struct lmv_stripe_md *lsm = md->lmv;
+       int i;
+
+       LASSERT(lsm != NULL);
+       /* XXX sigh, this lsm_root initialization should be in
+        * LMV layer, but it needs ll_iget right now, so we
+        * put this here right now. */
+       for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
+               fid = &lsm->lsm_md_oinfo[i].lmo_fid;
+               LASSERT(lsm->lsm_md_oinfo[i].lmo_root == NULL);
+               if (i == 0) {
+                       lsm->lsm_md_oinfo[i].lmo_root = inode;
+               } else {
+                       /* Unfortunately ll_iget will call ll_update_inode,
+                        * where the initialization of slave inode is slightly
+                        * different, so it reset lsm_md to NULL to avoid
+                        * initializing lsm for slave inode. */
+                       lsm->lsm_md_oinfo[i].lmo_root =
+                                       ll_iget_anon_dir(inode->i_sb, fid, md);
+                       if (IS_ERR(lsm->lsm_md_oinfo[i].lmo_root)) {
+                               int rc = PTR_ERR(lsm->lsm_md_oinfo[i].lmo_root);
+
+                               lsm->lsm_md_oinfo[i].lmo_root = NULL;
+                               return rc;
+                       }
+               }
+       }
+
+       /* Here is where the lsm is being initialized(fill lmo_info) after
+        * client retrieve MD stripe information from MDT. */
+       return md_update_lsm_md(ll_i2mdexp(inode), lsm, md->body,
+                               ll_md_blocking_ast);
+}
+
+static inline int lli_lsm_md_eq(const struct lmv_stripe_md *lsm_md1,
+                               const struct lmv_stripe_md *lsm_md2)
+{
+       return lsm_md1->lsm_md_magic == lsm_md2->lsm_md_magic &&
+              lsm_md1->lsm_md_stripe_count == lsm_md2->lsm_md_stripe_count &&
+              lsm_md1->lsm_md_master_mdt_index ==
+                                       lsm_md2->lsm_md_master_mdt_index &&
+              lsm_md1->lsm_md_hash_type == lsm_md2->lsm_md_hash_type &&
+              lsm_md1->lsm_md_layout_version ==
+                                       lsm_md2->lsm_md_layout_version &&
+              strcmp(lsm_md1->lsm_md_pool_name,
+                     lsm_md2->lsm_md_pool_name) == 0;
+}
+
+static void ll_update_lsm_md(struct inode *inode, struct lustre_md *md)
+{
+       struct ll_inode_info *lli = ll_i2info(inode);
+       struct lmv_stripe_md *lsm = md->lmv;
+       int idx;
+       ENTRY;
+
+       LASSERT(S_ISDIR(inode->i_mode));
+       CDEBUG(D_INODE, "update lsm %p of "DFID"\n", lli->lli_lsm_md,
+              PFID(ll_inode2fid(inode)));
+
+       /* no striped information from request. */
+       if (lsm == NULL) {
+               if (lli->lli_lsm_md == NULL) {
+                       RETURN_EXIT;
+               } else if (lli->lli_lsm_md->lsm_md_magic == LMV_MAGIC_MIGRATE) {
+                       /* migration is done, the temporay MIGRATE layout has
+                        * been removed */
+                       CDEBUG(D_INODE, DFID" finish migration.\n",
+                              PFID(ll_inode2fid(inode)));
+                       lmv_free_memmd(lli->lli_lsm_md);
+                       lli->lli_lsm_md = NULL;
+                       RETURN_EXIT;
+               } else {
+                       /* The lustre_md from req does not include stripeEA,
+                        * see ll_md_setattr */
+                       RETURN_EXIT;
+               }
+       }
+
+       /* set the directory layout */
+       if (lli->lli_lsm_md == NULL) {
+               int rc;
+
+               rc = ll_init_lsm_md(inode, md);
+               if (rc != 0) {
+                       CERROR("%s: init "DFID" failed: rc = %d\n",
+                              ll_get_fsname(inode->i_sb, NULL, 0),
+                              PFID(&lli->lli_fid), rc);
+                       return;
+               }
+               lli->lli_lsm_md = lsm;
+               /* set lsm_md to NULL, so the following free lustre_md
+                * will not free this lsm */
+               md->lmv = NULL;
+               CDEBUG(D_INODE, "Set lsm %p magic %x to "DFID"\n", lsm,
+                      lsm->lsm_md_magic, PFID(ll_inode2fid(inode)));
+               RETURN_EXIT;
+       }
+
+       /* Compare the old and new stripe information */
+       if (!lli_lsm_md_eq(lli->lli_lsm_md, lsm)) {
+               CERROR("inode %p %lu mismatch\n"
+                      "    new(%p)     vs     lli_lsm_md(%p):\n"
+                      "    magic:      %x                   %x\n"
+                      "    count:      %x                   %x\n"
+                      "    master:     %x                   %x\n"
+                      "    hash_type:  %x                   %x\n"
+                      "    layout:     %x                   %x\n"
+                      "    pool:       %s                   %s\n",
+                      inode, inode->i_ino, lsm, lli->lli_lsm_md,
+                      lsm->lsm_md_magic, lli->lli_lsm_md->lsm_md_magic,
+                      lsm->lsm_md_stripe_count,
+                      lli->lli_lsm_md->lsm_md_stripe_count,
+                      lsm->lsm_md_master_mdt_index,
+                      lli->lli_lsm_md->lsm_md_master_mdt_index,
+                      lsm->lsm_md_hash_type, lli->lli_lsm_md->lsm_md_hash_type,
+                      lsm->lsm_md_layout_version,
+                      lli->lli_lsm_md->lsm_md_layout_version,
+                      lsm->lsm_md_pool_name,
+                      lli->lli_lsm_md->lsm_md_pool_name);
+               return;
+       }
+
+       for (idx = 0; idx < lli->lli_lsm_md->lsm_md_stripe_count; idx++) {
+               if (!lu_fid_eq(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid,
+                              &lsm->lsm_md_oinfo[idx].lmo_fid)) {
+                       CERROR("%s: FID in lsm mismatch idx %d, old: "DFID
+                              "new:"DFID"\n",
+                              ll_get_fsname(inode->i_sb, NULL, 0), idx,
+                            PFID(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid),
+                              PFID(&lsm->lsm_md_oinfo[idx].lmo_fid));
+                       return;
+               }
+       }
+
+       md_update_lsm_md(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md,
+                        md->body, ll_md_blocking_ast);
+
+       RETURN_EXIT;
+}
+
 void ll_clear_inode(struct inode *inode)
 {
         struct ll_inode_info *lli = ll_i2info(inode);
         struct ll_sb_info *sbi = ll_i2sbi(inode);
         ENTRY;
 
-        CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
-               inode->i_generation, inode);
+       CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
+              PFID(ll_inode2fid(inode)), inode);
 
         if (S_ISDIR(inode->i_mode)) {
                 /* these should have been cleared in ll_file_release */
@@ -1227,6 +1458,8 @@ void ll_clear_inode(struct inode *inode)
                 lli->lli_symlink_name = NULL;
         }
 
+       ll_xattr_cache_destroy(inode);
+
         if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
                 LASSERT(lli->lli_posix_acl == NULL);
                 if (lli->lli_remote_perms) {
@@ -1244,15 +1477,17 @@ void ll_clear_inode(struct inode *inode)
 #endif
         lli->lli_inode_magic = LLI_INODE_DEAD;
 
-        ll_clear_inode_capas(inode);
-        if (!S_ISDIR(inode->i_mode))
-                LASSERT(cfs_list_empty(&lli->lli_agl_list));
+       ll_clear_inode_capas(inode);
+       if (S_ISDIR(inode->i_mode))
+               ll_dir_clear_lsm_md(inode);
+       else
+               LASSERT(list_empty(&lli->lli_agl_list));
 
-        /*
-         * XXX This has to be done before lsm is freed below, because
-         * cl_object still uses inode lsm.
-         */
-        cl_inode_fini(inode);
+       /*
+        * XXX This has to be done before lsm is freed below, because
+        * cl_object still uses inode lsm.
+        */
+       cl_inode_fini(inode);
        lli->lli_has_smd = false;
 
        EXIT;
@@ -1344,8 +1579,9 @@ static int ll_setattr_done_writing(struct inode *inode,
                  * from OSTs and send setattr to back to MDS. */
                 rc = ll_som_update(inode, op_data);
         } else if (rc) {
-                CERROR("inode %lu mdc truncate failed: rc = %d\n",
-                       inode->i_ino, rc);
+               CERROR("%s: inode "DFID" mdc truncate failed: rc = %d\n",
+                      ll_i2sbi(inode)->ll_md_exp->exp_obd->obd_name,
+                      PFID(ll_inode2fid(inode)), rc);
         }
         RETURN(rc);
 }
@@ -1382,20 +1618,24 @@ static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
  * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
  * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
  * at the same time.
+ *
+ * In case of HSMimport, we only set attr on MDS.
  */
-int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
+int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 {
         struct inode *inode = dentry->d_inode;
         struct ll_inode_info *lli = ll_i2info(inode);
         struct md_op_data *op_data = NULL;
         struct md_open_data *mod = NULL;
-        int rc = 0, rc1 = 0;
-        ENTRY;
+       bool file_is_released = false;
+       int rc = 0, rc1 = 0;
+       ENTRY;
 
-       CDEBUG(D_VFSTRACE, "%s: setattr inode %p/fid:"DFID" from %llu to %llu, "
-               "valid %x\n", ll_get_fsname(inode->i_sb, NULL, 0), inode,
-               PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size,
-               attr->ia_valid);
+       CDEBUG(D_VFSTRACE, "%s: setattr inode "DFID"(%p) from %llu to %llu, "
+              "valid %x, hsm_import %d\n",
+              ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid),
+              inode, i_size_read(inode), attr->ia_size, attr->ia_valid,
+              hsm_import);
 
        if (attr->ia_valid & ATTR_SIZE) {
                 /* Check new size against VFS/VM file size limit and rlimit */
@@ -1416,12 +1656,12 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
                 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
         }
 
-        /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
+       /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
        if (attr->ia_valid & TIMES_SET_FLAGS) {
-                if (cfs_curproc_fsuid() != inode->i_uid &&
-                    !cfs_capable(CFS_CAP_FOWNER))
-                        RETURN(-EPERM);
-        }
+               if (current_fsuid() != inode->i_uid &&
+                   !cfs_capable(CFS_CAP_FOWNER))
+                       RETURN(-EPERM);
+       }
 
         /* We mark all of the fields "set" so MDS/OST does not re-set them */
         if (attr->ia_valid & ATTR_CTIME) {
@@ -1444,14 +1684,6 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
                        LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
                        cfs_time_current_sec());
 
-       /* If we are changing file size, file content is modified, flag it. */
-       if (attr->ia_valid & ATTR_SIZE) {
-               attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
-               spin_lock(&lli->lli_lock);
-               lli->lli_flags |= LLIF_DATA_MODIFIED;
-               spin_unlock(&lli->lli_lock);
-       }
-
         /* We always do an MDS RPC, even if we're only changing the size;
          * only the MDS knows whether truncate() should fail with -ETXTBUSY */
 
@@ -1466,16 +1698,50 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
                down_write(&lli->lli_trunc_sem);
        }
 
-        memcpy(&op_data->op_attr, attr, sizeof(*attr));
+       /* truncate on a released file must failed with -ENODATA,
+        * so size must not be set on MDS for released file
+        * but other attributes must be set
+        */
+       if (S_ISREG(inode->i_mode)) {
+               struct lov_stripe_md *lsm;
+               __u32 gen;
 
-        /* Open epoch for truncate. */
-        if (exp_connect_som(ll_i2mdexp(inode)) &&
-            (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
-                op_data->op_flags = MF_EPOCH_OPEN;
+               ll_layout_refresh(inode, &gen);
+               lsm = ccc_inode_lsm_get(inode);
+               if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED)
+                       file_is_released = true;
+               ccc_inode_lsm_put(inode, lsm);
 
-        rc = ll_md_setattr(dentry, op_data, &mod);
-        if (rc)
-                GOTO(out, rc);
+               if (!hsm_import && attr->ia_valid & ATTR_SIZE) {
+                       if (file_is_released) {
+                               rc = ll_layout_restore(inode, 0, attr->ia_size);
+                               if (rc < 0)
+                                       GOTO(out, rc);
+
+                               file_is_released = false;
+                               ll_layout_refresh(inode, &gen);
+                       }
+
+                       /* If we are changing file size, file content is
+                        * modified, flag it. */
+                       attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
+                       spin_lock(&lli->lli_lock);
+                       lli->lli_flags |= LLIF_DATA_MODIFIED;
+                       spin_unlock(&lli->lli_lock);
+                       op_data->op_bias |= MDS_DATA_MODIFIED;
+               }
+       }
+
+       memcpy(&op_data->op_attr, attr, sizeof(*attr));
+
+       /* Open epoch for truncate. */
+       if (exp_connect_som(ll_i2mdexp(inode)) && !hsm_import &&
+           (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
+               op_data->op_flags = MF_EPOCH_OPEN;
+
+       rc = ll_md_setattr(dentry, op_data, &mod);
+       if (rc)
+               GOTO(out, rc);
 
        /* RPC to MDT is sent, cancel data modification flag */
        if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
@@ -1484,34 +1750,35 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
                spin_unlock(&lli->lli_lock);
        }
 
-        ll_ioepoch_open(lli, op_data->op_ioepoch);
-       if (!S_ISREG(inode->i_mode))
-                GOTO(out, rc = 0);
+       ll_ioepoch_open(lli, op_data->op_ioepoch);
+       if (!S_ISREG(inode->i_mode) || file_is_released)
+               GOTO(out, rc = 0);
 
        if (attr->ia_valid & (ATTR_SIZE |
                              ATTR_ATIME | ATTR_ATIME_SET |
-                             ATTR_MTIME | ATTR_MTIME_SET))
-                /* For truncate and utimes sending attributes to OSTs, setting
-                 * mtime/atime to the past will be performed under PW [0:EOF]
-                 * extent lock (new_size:EOF for truncate).  It may seem
-                 * excessive to send mtime/atime updates to OSTs when not
-                 * setting times to past, but it is necessary due to possible
-                 * time de-synchronization between MDT inode and OST objects */
-                rc = ll_setattr_ost(inode, attr);
-        EXIT;
+                             ATTR_MTIME | ATTR_MTIME_SET)) {
+               /* For truncate and utimes sending attributes to OSTs, setting
+                * mtime/atime to the past will be performed under PW [0:EOF]
+                * extent lock (new_size:EOF for truncate).  It may seem
+                * excessive to send mtime/atime updates to OSTs when not
+                * setting times to past, but it is necessary due to possible
+                * time de-synchronization between MDT inode and OST objects */
+               rc = ll_setattr_ost(inode, attr);
+       }
+       EXIT;
 out:
-        if (op_data) {
-                if (op_data->op_ioepoch) {
-                        rc1 = ll_setattr_done_writing(inode, op_data, mod);
-                        if (!rc)
-                                rc = rc1;
-                }
-                ll_finish_md_op_data(op_data);
-        }
+       if (op_data) {
+               if (op_data->op_ioepoch) {
+                       rc1 = ll_setattr_done_writing(inode, op_data, mod);
+                       if (!rc)
+                               rc = rc1;
+               }
+               ll_finish_md_op_data(op_data);
+       }
        if (!S_ISDIR(inode->i_mode)) {
                up_write(&lli->lli_trunc_sem);
                mutex_lock(&inode->i_mutex);
-               if (attr->ia_valid & ATTR_SIZE)
+               if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
                        inode_dio_wait(inode);
        }
 
@@ -1523,30 +1790,30 @@ out:
 
 int ll_setattr(struct dentry *de, struct iattr *attr)
 {
-        int mode = de->d_inode->i_mode;
-
-        if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
-                              (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
-                attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
-
-        if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
-                               (ATTR_SIZE|ATTR_MODE)) &&
-            (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
-             (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
-              !(attr->ia_mode & S_ISGID))))
-                attr->ia_valid |= ATTR_FORCE;
-
-        if ((mode & S_ISUID) &&
-            !(attr->ia_mode & S_ISUID) &&
-            !(attr->ia_valid & ATTR_KILL_SUID))
-                attr->ia_valid |= ATTR_KILL_SUID;
-
-        if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
-            !(attr->ia_mode & S_ISGID) &&
-            !(attr->ia_valid & ATTR_KILL_SGID))
-                attr->ia_valid |= ATTR_KILL_SGID;
-
-        return ll_setattr_raw(de, attr);
+       int mode = de->d_inode->i_mode;
+
+       if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
+                             (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
+               attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
+
+       if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
+                              (ATTR_SIZE|ATTR_MODE)) &&
+           (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
+            (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
+             !(attr->ia_mode & S_ISGID))))
+               attr->ia_valid |= ATTR_FORCE;
+
+       if ((mode & S_ISUID) &&
+           !(attr->ia_mode & S_ISUID) &&
+           !(attr->ia_valid & ATTR_KILL_SUID))
+               attr->ia_valid |= ATTR_KILL_SUID;
+
+       if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
+           !(attr->ia_mode & S_ISGID) &&
+           !(attr->ia_valid & ATTR_KILL_SGID))
+               attr->ia_valid |= ATTR_KILL_SGID;
+
+       return ll_setattr_raw(de, attr, false);
 }
 
 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
@@ -1602,6 +1869,7 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
 {
        struct super_block *sb = de->d_sb;
        struct obd_statfs osfs;
+       __u64 fsid = huge_encode_dev(sb->s_dev);
        int rc;
 
         CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
@@ -1633,7 +1901,8 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
         sfs->f_blocks = osfs.os_blocks;
         sfs->f_bfree = osfs.os_bfree;
         sfs->f_bavail = osfs.os_bavail;
-       sfs->f_fsid = ll_s2sbi(sb)->ll_fsid;
+       sfs->f_fsid.val[0] = (__u32)fsid;
+       sfs->f_fsid.val[1] = (__u32)(fsid >> 32);
        return 0;
 }
 
@@ -1678,7 +1947,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                        lli->lli_maxbytes = MAX_LFS_FILESIZE;
        }
 
-        if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
+       if (S_ISDIR(inode->i_mode))
+               ll_update_lsm_md(inode, md);
+
+       if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
                 if (body->valid & OBD_MD_FLRMTPERM)
                         ll_update_remote_perm(inode, md->remote_perm);
         }
@@ -1693,7 +1965,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
 #endif
        inode->i_ino = cl_fid_build_ino(&body->fid1,
                                        sbi->ll_flags & LL_SBI_32BIT_API);
-        inode->i_generation = cl_fid_build_gen(&body->fid1);
+       inode->i_generation = cl_fid_build_gen(&body->fid1);
 
         if (body->valid & OBD_MD_FLATIME) {
                 if (body->atime > LTIME_S(inode->i_atime))
@@ -1735,17 +2007,18 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
        if (body->valid & OBD_MD_FLRDEV)
                inode->i_rdev = old_decode_dev(body->rdev);
 
-        if (body->valid & OBD_MD_FLID) {
-                /* FID shouldn't be changed! */
-                if (fid_is_sane(&lli->lli_fid)) {
-                        LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
-                                 "Trying to change FID "DFID
-                                 " to the "DFID", inode %lu/%u(%p)\n",
-                                 PFID(&lli->lli_fid), PFID(&body->fid1),
-                                 inode->i_ino, inode->i_generation, inode);
-                } else
-                        lli->lli_fid = body->fid1;
-        }
+       if (body->valid & OBD_MD_FLID) {
+               /* FID shouldn't be changed! */
+               if (fid_is_sane(&lli->lli_fid)) {
+                       LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
+                                "Trying to change FID "DFID
+                                " to the "DFID", inode "DFID"(%p)\n",
+                                PFID(&lli->lli_fid), PFID(&body->fid1),
+                                PFID(ll_inode2fid(inode)), inode);
+               } else {
+                       lli->lli_fid = body->fid1;
+               }
+       }
 
         LASSERT(fid_seq(&lli->lli_fid) != 0);
 
@@ -1760,15 +2033,19 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                          * lock on the client and set LLIF_MDS_SIZE_LOCK holding
                          * it. */
                         mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
-                                               &lockh, LDLM_FL_CBPENDING);
+                                              &lockh, LDLM_FL_CBPENDING,
+                                              LCK_CR | LCK_CW |
+                                              LCK_PR | LCK_PW);
                         if (mode) {
                                 if (lli->lli_flags & (LLIF_DONE_WRITING |
                                                       LLIF_EPOCH_PENDING |
                                                       LLIF_SOM_DIRTY)) {
-                                        CERROR("ino %lu flags %u still has "
-                                               "size authority! do not trust "
-                                               "the size got from MDS\n",
-                                               inode->i_ino, lli->lli_flags);
+                                       CERROR("%s: inode "DFID" flags %u still"
+                                              " has size authority! do not "
+                                              "trust the size from MDS\n",
+                                              sbi->ll_md_exp->exp_obd->obd_name,
+                                              PFID(ll_inode2fid(inode)),
+                                              lli->lli_flags);
                                 } else {
                                         /* Use old size assignment to avoid
                                          * deadlock bz14138 & bz14326 */
@@ -1784,8 +2061,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                          * deadlock bz14138 & bz14326 */
                         i_size_write(inode, body->size);
 
-                        CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
-                               inode->i_ino, (unsigned long long)body->size);
+                       CDEBUG(D_VFSTRACE,
+                              "inode="DFID", updating i_size %llu\n",
+                              PFID(ll_inode2fid(inode)),
+                              (unsigned long long)body->size);
                 }
 
                 if (body->valid & OBD_MD_FLBLOCKS)
@@ -1800,6 +2079,11 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md)
                 LASSERT(md->oss_capa);
                 ll_add_capa(inode, md->oss_capa);
         }
+
+       if (body->valid & OBD_MD_TSTATE) {
+               if (body->t_state & MS_RESTORE)
+                       lli->lli_flags |= LLIF_FILE_RESTORING;
+       }
 }
 
 void ll_read_inode2(struct inode *inode, void *opaque)
@@ -1867,12 +2151,12 @@ void ll_delete_inode(struct inode *inode)
 
         /* Workaround for LU-118 */
         if (inode->i_data.nrpages) {
-                TREE_READ_LOCK_IRQ(&inode->i_data);
-                TREE_READ_UNLOCK_IRQ(&inode->i_data);
+               spin_lock_irq(&inode->i_data.tree_lock);
+               spin_unlock_irq(&inode->i_data.tree_lock);
                 LASSERTF(inode->i_data.nrpages == 0,
-                         "inode=%lu/%u(%p) nrpages=%lu, see "
-                         "http://jira.whamcloud.com/browse/LU-118\n",
-                         inode->i_ino, inode->i_generation, inode,
+                        "inode="DFID"(%p) nrpages=%lu, see "
+                        "http://jira.whamcloud.com/browse/LU-118\n",
+                        PFID(ll_inode2fid(inode)), inode,
                          inode->i_data.nrpages);
         }
         /* Workaround end */
@@ -1908,7 +2192,9 @@ int ll_iocontrol(struct inode *inode, struct file *file,
                 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
                 ll_finish_md_op_data(op_data);
                 if (rc) {
-                        CERROR("failure %d inode %lu\n", rc, inode->i_ino);
+                       CERROR("%s: failure inode "DFID": rc = %d\n",
+                              sbi->ll_md_exp->exp_obd->obd_name,
+                              PFID(ll_inode2fid(inode)), rc);
                         RETURN(-abs(rc));
                 }
 
@@ -1981,17 +2267,17 @@ int ll_iocontrol(struct inode *inode, struct file *file,
 
 int ll_flush_ctx(struct inode *inode)
 {
-        struct ll_sb_info  *sbi = ll_i2sbi(inode);
+       struct ll_sb_info  *sbi = ll_i2sbi(inode);
 
-        CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
+       CDEBUG(D_SEC, "flush context for user %d\n", current_uid());
 
-        obd_set_info_async(NULL, sbi->ll_md_exp,
-                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-                           0, NULL, NULL);
-        obd_set_info_async(NULL, sbi->ll_dt_exp,
-                           sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
-                           0, NULL, NULL);
-        return 0;
+       obd_set_info_async(NULL, sbi->ll_md_exp,
+                          sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
+                          0, NULL, NULL);
+       obd_set_info_async(NULL, sbi->ll_dt_exp,
+                          sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
+                          0, NULL, NULL);
+       return 0;
 }
 
 /* umount -f client means force down, don't save state */
@@ -2034,12 +2320,12 @@ void ll_umount_begin(struct super_block *sb)
                OBD_FREE_PTR(ioc_data);
        }
 
-        /* Really, we'd like to wait until there are no requests outstanding,
-         * and then continue.  For now, we just invalidate the requests,
-         * schedule() and sleep one second if needed, and hope.
-         */
-        cfs_schedule();
-        EXIT;
+       /* Really, we'd like to wait until there are no requests outstanding,
+        * and then continue.  For now, we just invalidate the requests,
+        * schedule() and sleep one second if needed, and hope.
+        */
+       schedule();
+       EXIT;
 }
 
 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
@@ -2078,9 +2364,9 @@ int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
                  struct super_block *sb, struct lookup_intent *it)
 {
        struct ll_sb_info *sbi = NULL;
-       struct lustre_md md;
-        int rc;
-        ENTRY;
+       struct lustre_md md = { 0 };
+       int rc;
+       ENTRY;
 
         LASSERT(*inode || sb);
         sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
@@ -2200,31 +2486,28 @@ out_statfs:
 
 int ll_process_config(struct lustre_cfg *lcfg)
 {
-        char *ptr;
-        void *sb;
-        struct lprocfs_static_vars lvars;
-        unsigned long x;
-        int rc = 0;
+       struct super_block *sb;
+       unsigned long x;
+       int rc = 0;
+       char *ptr;
 
-        lprocfs_llite_init_vars(&lvars);
-
-        /* The instance name contains the sb: lustre-client-aacfe000 */
-        ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
-        if (!ptr || !*(++ptr))
-                return -EINVAL;
-        if (sscanf(ptr, "%lx", &x) != 1)
-                return -EINVAL;
-        sb = (void *)x;
-        /* This better be a real Lustre superblock! */
-        LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
-
-        /* Note we have not called client_common_fill_super yet, so
-           proc fns must be able to handle that! */
-        rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
-                                      lcfg, sb);
-        if (rc > 0)
-                rc = 0;
-        return(rc);
+       /* The instance name contains the sb: lustre-client-aacfe000 */
+       ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
+       if (!ptr || !*(++ptr))
+               return -EINVAL;
+       if (sscanf(ptr, "%lx", &x) != 1)
+               return -EINVAL;
+       sb = (struct super_block *)x;
+       /* This better be a real Lustre superblock! */
+       LASSERT(s2lsi(sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
+
+       /* Note we have not called client_common_fill_super yet, so
+          proc fns must be able to handle that! */
+       rc = class_process_proc_seq_param(PARAM_LLITE, lprocfs_llite_obd_vars,
+                                         lcfg, sb);
+       if (rc > 0)
+               rc = 0;
+       return rc;
 }
 
 /* this function prepares md_op_data hint for passing ot down to MD stack. */
@@ -2244,31 +2527,40 @@ struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
         if (op_data == NULL)
                 return ERR_PTR(-ENOMEM);
 
-        ll_i2gids(op_data->op_suppgids, i1, i2);
-        op_data->op_fid1 = *ll_inode2fid(i1);
-        op_data->op_capa1 = ll_mdscapa_get(i1);
+       ll_i2gids(op_data->op_suppgids, i1, i2);
+       op_data->op_fid1 = *ll_inode2fid(i1);
+       op_data->op_capa1 = ll_mdscapa_get(i1);
+       if (S_ISDIR(i1->i_mode))
+               op_data->op_mea1 = ll_i2info(i1)->lli_lsm_md;
+
+       if (i2) {
+               op_data->op_fid2 = *ll_inode2fid(i2);
+               op_data->op_capa2 = ll_mdscapa_get(i2);
+               if (S_ISDIR(i2->i_mode))
+                       op_data->op_mea2 = ll_i2info(i2)->lli_lsm_md;
+       } else {
+               fid_zero(&op_data->op_fid2);
+               op_data->op_capa2 = NULL;
+       }
 
-        if (i2) {
-                op_data->op_fid2 = *ll_inode2fid(i2);
-                op_data->op_capa2 = ll_mdscapa_get(i2);
-        } else {
-                fid_zero(&op_data->op_fid2);
-                op_data->op_capa2 = NULL;
-        }
+       if (ll_i2sbi(i1)->ll_flags & LL_SBI_64BIT_HASH)
+               op_data->op_cli_flags |= CLI_HASH64;
+
+       if (ll_need_32bit_api(ll_i2sbi(i1)))
+               op_data->op_cli_flags |= CLI_API32;
 
        op_data->op_name = name;
        op_data->op_namelen = namelen;
        op_data->op_mode = mode;
        op_data->op_mod_time = cfs_time_current_sec();
-       op_data->op_fsuid = cfs_curproc_fsuid();
-       op_data->op_fsgid = cfs_curproc_fsgid();
+       op_data->op_fsuid = current_fsuid();
+       op_data->op_fsgid = current_fsgid();
        op_data->op_cap = cfs_curproc_cap_pack();
        op_data->op_bias = 0;
        op_data->op_cli_flags = 0;
        if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) &&
             filename_is_volatile(name, namelen, NULL))
                op_data->op_bias |= MDS_CREATE_VOLATILE;
-       op_data->op_opc = opc;
        op_data->op_mds = 0;
        op_data->op_data = data;
 
@@ -2400,7 +2692,6 @@ static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
 {
        char *path = NULL;
 
-#ifdef HAVE_FS_STRUCT_USE_PATH
        struct path p;
 
        p.dentry = dentry;
@@ -2408,10 +2699,6 @@ static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
        path_get(&p);
        path = d_path(&p, buf, bufsize);
        path_put(&p);
-#else
-       path = d_path(dentry, current->fs->rootmnt, buf, bufsize);
-#endif
-
        return path;
 }