Whamcloud - gitweb
LU-2240 mds: Assign special fid sequence to root.
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_oi.c
index 3e3279a..118359a 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) 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
  * Author: Nikita Danilov <nikita@clusterfs.com>
  */
 
-/*
- * oi uses two mechanisms to implement fid->cookie mapping:
- *
- *     - persistent index, where cookie is a record and fid is a key, and
- *
- *     - algorithmic mapping for "igif" fids.
- *
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
 #define DEBUG_SUBSYSTEM S_MDS
 
 #include <linux/module.h>
 
 /* fid_cpu_to_be() */
 #include <lustre_fid.h>
+#include <dt_object.h>
 
 #include "osd_oi.h"
 /* osd_lookup(), struct osd_thread_info */
 #include "osd_internal.h"
-#include "osd_igif.h"
-#include "dt_object.h"
-
-#define OSD_OI_FID_NR         (1UL << OSD_OI_FID_OID_BITS)
-#define OSD_OI_FID_NR_MAX     (1UL << OSD_OI_FID_OID_BITS_MAX)
+#include "osd_scrub.h"
 
 static unsigned int osd_oi_count = OSD_OI_FID_NR;
 CFS_MODULE_PARM(osd_oi_count, "i", int, 0444,
@@ -83,7 +68,7 @@ CFS_MODULE_PARM(osd_oi_count, "i", int, 0444,
                 "it's only valid for new filesystem.");
 
 /** to serialize concurrent OI index initialization */
-static cfs_mutex_t oi_init_lock;
+static struct mutex oi_init_lock;
 
 static struct dt_index_features oi_feat = {
         .dif_flags       = DT_IND_UPDATE,
@@ -95,81 +80,78 @@ static struct dt_index_features oi_feat = {
 #define OSD_OI_NAME_BASE        "oi.16"
 
 static void osd_oi_table_put(struct osd_thread_info *info,
-                             struct osd_oi **oi_table, unsigned oi_count)
+                            struct osd_oi **oi_table, unsigned oi_count)
 {
-        struct iam_container *bag;
-        int                   i;
-
-        for (i = 0; i < oi_count; i++) {
-                LASSERT(oi_table[i] != NULL);
-                LASSERT(oi_table[i]->oi_inode != NULL);
-
-                bag = &(oi_table[i]->oi_dir.od_container);
-                if (bag->ic_object == oi_table[i]->oi_inode)
-                        iam_container_fini(bag);
-                iput(oi_table[i]->oi_inode);
-                oi_table[i]->oi_inode = NULL;
-                OBD_FREE_PTR(oi_table[i]);
-        }
+       struct iam_container *bag;
+       int                   i;
+
+       for (i = 0; i < oi_count; i++) {
+               if (oi_table[i] == NULL)
+                       continue;
+
+               LASSERT(oi_table[i]->oi_inode != NULL);
+
+               bag = &(oi_table[i]->oi_dir.od_container);
+               if (bag->ic_object == oi_table[i]->oi_inode)
+                       iam_container_fini(bag);
+               iput(oi_table[i]->oi_inode);
+               oi_table[i]->oi_inode = NULL;
+               OBD_FREE_PTR(oi_table[i]);
+               oi_table[i] = NULL;
+       }
 }
 
 static int osd_oi_index_create_one(struct osd_thread_info *info,
-                                   struct osd_device *osd, const char *name,
-                                   struct dt_index_features *feat)
+                                  struct osd_device *osd, const char *name,
+                                  struct dt_index_features *feat)
 {
-        const struct lu_env             *env = info->oti_env;
-        struct osd_inode_id             *id  = &info->oti_id;
-        struct buffer_head              *bh;
-        struct inode                    *inode;
-        struct ldiskfs_dir_entry_2      *de;
-        struct dentry                   *dentry;
-        struct inode                    *dir;
-        handle_t                        *jh;
-        int                              rc;
-
-        dentry = osd_child_dentry_by_inode(env, osd_sb(osd)->s_root->d_inode,
-                                           name, strlen(name));
-        dir = osd_sb(osd)->s_root->d_inode;
-        bh = osd_ldiskfs_find_entry(dir, dentry, &de, NULL);
-        if (bh) {
-                brelse(bh);
-
-                id->oii_ino = le32_to_cpu(de->inode);
-                id->oii_gen = OSD_OII_NOGEN;
-
-                inode = osd_iget(info, osd, id);
-                if (!IS_ERR(inode)) {
-                        iput(inode);
-                        RETURN(-EEXIST);
-                }
-                RETURN(PTR_ERR(inode));
-        }
-
-        jh = ldiskfs_journal_start_sb(osd_sb(osd), 100);
-        LASSERT(!IS_ERR(jh));
-
-        inode = ldiskfs_create_inode(jh, osd_sb(osd)->s_root->d_inode,
-                                     (S_IFREG | S_IRUGO | S_IWUSR));
-        LASSERT(!IS_ERR(inode));
-
-        if (feat->dif_flags & DT_IND_VARKEY)
-                rc = iam_lvar_create(inode, feat->dif_keysize_max,
-                                     feat->dif_ptrsize, feat->dif_recsize_max,
-                                     jh);
-        else
-                rc = iam_lfix_create(inode, feat->dif_keysize_max,
-                                     feat->dif_ptrsize, feat->dif_recsize_max,
-                                     jh);
-
-        dentry = osd_child_dentry_by_inode(env, osd_sb(osd)->s_root->d_inode,
-                                           name, strlen(name));
-        rc = osd_ldiskfs_add_entry(jh, dentry, inode, NULL);
-        LASSERT(rc == 0);
-
-        ldiskfs_journal_stop(jh);
-        iput(inode);
-
-        return rc;
+       const struct lu_env             *env = info->oti_env;
+       struct osd_inode_id             *id  = &info->oti_id;
+       struct buffer_head              *bh;
+       struct inode                    *inode;
+       struct ldiskfs_dir_entry_2      *de;
+       struct dentry                   *dentry;
+       struct super_block              *sb  = osd_sb(osd);
+       struct inode                    *dir = sb->s_root->d_inode;
+       handle_t                        *jh;
+       int                              rc;
+
+       dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
+       bh = osd_ldiskfs_find_entry(dir, dentry, &de, NULL);
+       if (bh) {
+               osd_id_gen(id, le32_to_cpu(de->inode), OSD_OII_NOGEN);
+               brelse(bh);
+               inode = osd_iget(info, osd, id);
+               if (!IS_ERR(inode)) {
+                       iput(inode);
+                       inode = ERR_PTR(-EEXIST);
+               }
+               return PTR_ERR(inode);
+       }
+
+       jh = ldiskfs_journal_start_sb(sb, 100);
+       if (IS_ERR(jh))
+               return PTR_ERR(jh);
+
+       inode = ldiskfs_create_inode(jh, dir, (S_IFREG | S_IRUGO | S_IWUSR));
+       if (IS_ERR(inode)) {
+               ldiskfs_journal_stop(jh);
+               return PTR_ERR(inode);
+       }
+
+       if (feat->dif_flags & DT_IND_VARKEY)
+               rc = iam_lvar_create(inode, feat->dif_keysize_max,
+                                    feat->dif_ptrsize, feat->dif_recsize_max,
+                                    jh);
+       else
+               rc = iam_lfix_create(inode, feat->dif_keysize_max,
+                                    feat->dif_ptrsize, feat->dif_recsize_max,
+                                    jh);
+       dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
+       rc = osd_ldiskfs_add_entry(jh, dentry, inode, NULL);
+       ldiskfs_journal_stop(jh);
+       iput(inode);
+       return rc;
 }
 
 static struct inode *osd_oi_index_open(struct osd_thread_info *info,
@@ -202,7 +184,7 @@ static struct inode *osd_oi_index_open(struct osd_thread_info *info,
 
         rc = osd_oi_index_create_one(info, osd, name, f);
         if (rc)
-                RETURN(ERR_PTR(rc));
+               return ERR_PTR(rc);
 
         dentry = ll_lookup_one_len(name, osd_sb(osd)->s_root, strlen(name));
         if (IS_ERR(dentry))
@@ -246,6 +228,7 @@ static int osd_oi_open(struct osd_thread_info *info, struct osd_device *osd,
         if (IS_ERR(inode))
                 RETURN(PTR_ERR(inode));
 
+       ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
         OBD_ALLOC_PTR(oi);
         if (oi == NULL)
                 GOTO(out_inode, rc = -ENOMEM);
@@ -293,93 +276,143 @@ out_inode:
  */
 static int
 osd_oi_table_open(struct osd_thread_info *info, struct osd_device *osd,
-                  struct osd_oi **oi_table, unsigned oi_count, bool create)
+                 struct osd_oi **oi_table, unsigned oi_count, bool create)
 {
-        struct dt_device *dev = &osd->od_dt_dev;
-        int               count = 0;
-        int               rc = 0;
-        int               i;
-
-        /* NB: oi_count != 0 means that we have already created/known all OIs
-         * and have known exact number of OIs. */
-        LASSERT(oi_count <= OSD_OI_FID_NR_MAX);
-
-        for (i = 0; i < (oi_count != 0 ? oi_count : OSD_OI_FID_NR_MAX); i++) {
-                char name[12];
-
-                sprintf(name, "%s.%d", OSD_OI_NAME_BASE, i);
-                rc = osd_oi_open(info, osd, name, &oi_table[i], create);
-                if (rc == 0) {
-                        count++;
-                        continue;
-                }
-
-                if (rc == -ENOENT && oi_count == 0)
-                        return count;
-
-                CERROR("%s: can't open %s: rc = %d\n",
-                       dev->dd_lu_dev.ld_obd->obd_name, name, rc);
-                if (oi_count > 0) {
-                        CERROR("%s: expect to open total %d OI files.\n",
-                               dev->dd_lu_dev.ld_obd->obd_name, oi_count);
-                }
-                break;
-        }
-
-        if (rc < 0) {
-                osd_oi_table_put(info, oi_table, count);
-                return rc;
-        }
-
-        return count;
+       struct scrub_file *sf = &osd->od_scrub.os_file;
+       int                count = 0;
+       int                rc = 0;
+       int                i;
+       ENTRY;
+
+       /* NB: oi_count != 0 means that we have already created/known all OIs
+        * and have known exact number of OIs. */
+       LASSERT(oi_count <= OSD_OI_FID_NR_MAX);
+
+       for (i = 0; i < (oi_count != 0 ? oi_count : OSD_OI_FID_NR_MAX); i++) {
+               char name[12];
+
+               if (oi_table[i] != NULL) {
+                       count++;
+                       continue;
+               }
+
+               sprintf(name, "%s.%d", OSD_OI_NAME_BASE, i);
+               rc = osd_oi_open(info, osd, name, &oi_table[i], create);
+               if (rc == 0) {
+                       count++;
+                       continue;
+               }
+
+               if (rc == -ENOENT && create == false) {
+                       if (oi_count == 0)
+                               return count;
+
+                       rc = 0;
+                       ldiskfs_set_bit(i, sf->sf_oi_bitmap);
+                       continue;
+               }
+
+               CERROR("%.16s: can't open %s: rc = %d\n",
+                      LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name, name, rc);
+               if (oi_count > 0)
+                       CERROR("%.16s: expect to open total %d OI files.\n",
+                              LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+                              oi_count);
+               break;
+       }
+
+       if (rc < 0) {
+               osd_oi_table_put(info, oi_table, oi_count > 0 ? oi_count : i);
+               count = rc;
+       }
+
+       RETURN(count);
 }
 
 int osd_oi_init(struct osd_thread_info *info, struct osd_device *osd)
 {
-        struct dt_device *dev = &osd->od_dt_dev;
-        struct osd_oi   **oi;
-        int               rc;
-
-        OBD_ALLOC(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
-        if (oi == NULL)
-                return -ENOMEM;
-
-        cfs_mutex_lock(&oi_init_lock);
-        /* try to open existing multiple OIs first */
-        rc = osd_oi_table_open(info, osd, oi, 0, false);
-        if (rc != 0)
-                goto out;
-
-        /* if previous failed then try found single OI from old filesystem */
-        rc = osd_oi_open(info, osd, OSD_OI_NAME_BASE, &oi[0], false);
-        if (rc == 0) { /* found single OI from old filesystem */
-                rc = 1;
-                goto out;
-        } else if (rc != -ENOENT) {
-                CERROR("%s: can't open %s: rc = %d\n",
-                       dev->dd_lu_dev.ld_obd->obd_name, OSD_OI_NAME_BASE, rc);
-                goto out;
-        }
+       struct osd_scrub  *scrub = &osd->od_scrub;
+       struct scrub_file *sf = &scrub->os_file;
+       struct osd_oi    **oi;
+       int                rc;
+       ENTRY;
+
+       OBD_ALLOC(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
+       if (oi == NULL)
+               RETURN(-ENOMEM);
+
+       mutex_lock(&oi_init_lock);
+       /* try to open existing multiple OIs first */
+       rc = osd_oi_table_open(info, osd, oi, sf->sf_oi_count, false);
+       if (rc < 0)
+               GOTO(out, rc);
+
+       if (rc > 0) {
+               if (rc == sf->sf_oi_count || sf->sf_oi_count == 0)
+                       GOTO(out, rc);
+
+               osd_scrub_file_reset(scrub,
+                                    LDISKFS_SB(osd_sb(osd))->s_es->s_uuid,
+                                    SF_RECREATED);
+               osd_oi_count = sf->sf_oi_count;
+               goto create;
+       }
+
+       /* if previous failed then try found single OI from old filesystem */
+       rc = osd_oi_open(info, osd, OSD_OI_NAME_BASE, &oi[0], false);
+       if (rc == 0) { /* found single OI from old filesystem */
+               GOTO(out, rc = 1);
+       } else if (rc != -ENOENT) {
+               CERROR("%.16s: can't open %s: rc = %d\n",
+                      LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+                      OSD_OI_NAME_BASE, rc);
+               GOTO(out, rc);
+       }
+
+       if (sf->sf_oi_count > 0) {
+               int i;
+
+               memset(sf->sf_oi_bitmap, 0, SCRUB_OI_BITMAP_SIZE);
+               for (i = 0; i < osd_oi_count; i++)
+                       ldiskfs_set_bit(i, sf->sf_oi_bitmap);
+               osd_scrub_file_reset(scrub,
+                                    LDISKFS_SB(osd_sb(osd))->s_es->s_uuid,
+                                    SF_RECREATED);
+       }
+       sf->sf_oi_count = osd_oi_count;
+
+create:
+       rc = osd_scrub_file_store(scrub);
+       if (rc < 0) {
+               osd_oi_table_put(info, oi, sf->sf_oi_count);
+               GOTO(out, rc);
+       }
+
+       /* No OIs exist, new filesystem, create OI objects */
+       rc = osd_oi_table_open(info, osd, oi, osd_oi_count, true);
+       LASSERT(ergo(rc >= 0, rc == osd_oi_count));
+
+       GOTO(out, rc);
 
-        /* No OIs exist, new filesystem, create OI objects */
-        rc = osd_oi_table_open(info, osd, oi, osd_oi_count, true);
-        LASSERT(ergo(rc >= 0, rc == osd_oi_count));
 out:
-        if (rc < 0) {
-                OBD_FREE(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
-        } else {
-                LASSERT((rc & (rc - 1)) == 0);
-                osd->od_oi_table = oi;
-                osd->od_oi_count = rc;
-                rc = 0;
-        }
-
-        cfs_mutex_unlock(&oi_init_lock);
-        return rc;
+       if (rc < 0) {
+               OBD_FREE(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
+       } else {
+               LASSERT((rc & (rc - 1)) == 0);
+               osd->od_oi_table = oi;
+               osd->od_oi_count = rc;
+               rc = 0;
+       }
+
+       mutex_unlock(&oi_init_lock);
+       return rc;
 }
 
 void osd_oi_fini(struct osd_thread_info *info, struct osd_device *osd)
 {
+       if (unlikely(osd->od_oi_table == NULL))
+               return;
+
         osd_oi_table_put(info, osd->od_oi_table, osd->od_oi_count);
 
         OBD_FREE(osd->od_oi_table,
@@ -400,7 +433,6 @@ static int osd_oi_iam_lookup(struct osd_thread_info *oti,
 {
         struct iam_container  *bag;
         struct iam_iterator   *it = &oti->oti_idx_it;
-        struct iam_rec        *iam_rec;
         struct iam_path_descr *ipd;
         int                    rc;
         ENTRY;
@@ -417,17 +449,8 @@ static int osd_oi_iam_lookup(struct osd_thread_info *oti,
         iam_it_init(it, bag, 0, ipd);
 
         rc = iam_it_get(it, (struct iam_key *)key);
-        if (rc >= 0) {
-                if (S_ISDIR(oi->oi_inode->i_mode))
-                        iam_rec = (struct iam_rec *)oti->oti_ldp;
-                else
-                        iam_rec = (struct iam_rec *)rec;
-
-                iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
-                if (S_ISDIR(oi->oi_inode->i_mode))
-                        osd_fid_unpack((struct lu_fid *)rec,
-                                       (struct osd_fid_pack *)iam_rec);
-        }
+       if (rc > 0)
+               iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
         iam_it_put(it);
         iam_it_fini(it);
         osd_ipd_put(oti->oti_env, bag, ipd);
@@ -437,123 +460,183 @@ static int osd_oi_iam_lookup(struct osd_thread_info *oti,
         RETURN(rc);
 }
 
-int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
-                  const struct lu_fid *fid, struct osd_inode_id *id)
+int fid_is_on_ost(struct osd_thread_info *info, struct osd_device *osd,
+                 const struct lu_fid *fid)
 {
-        struct lu_fid       *oi_fid = &info->oti_fid;
-        const struct dt_key *key;
-        int                  rc = 0;
-
-        if (fid_is_idif(fid) || fid_seq(fid) == FID_SEQ_LLOG) {
-                /* old OSD obj id */
-                rc = osd_compat_objid_lookup(info, osd, fid, id);
-        } else if (fid_is_igif(fid)) {
-                lu_igif_to_id(fid, id);
-                rc = 0;
-        } else if (fid_is_fs_root(fid)) {
-                struct inode *inode = osd_sb(osd)->s_root->d_inode;
-
-                id->oii_ino = inode->i_ino;
-                id->oii_gen = inode->i_generation;
-        } else {
-                if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE)) {
-                        rc = osd_compat_spec_lookup(info, osd, fid, id);
-                        if (rc == 0 || rc != -ERESTART)
-                                goto out;
-                }
-
-                fid_cpu_to_be(oi_fid, fid);
-                key = (struct dt_key *)oi_fid;
-
-                rc = osd_oi_iam_lookup(info, osd_fid2oi(osd, fid),
-                                       (struct dt_rec *)id, key);
-
-                if (rc > 0) {
-                        id->oii_ino = be32_to_cpu(id->oii_ino);
-                        id->oii_gen = be32_to_cpu(id->oii_gen);
-                        rc = 0;
-                } else if (rc == 0) {
-                        rc = -ENOENT;
-                }
-        }
+       struct lu_seq_range *range = &info->oti_seq_range;
+       int rc;
+       ENTRY;
 
-out:
-        return rc;
-}
+       if (unlikely(fid_is_local_file(fid) || fid_is_igif(fid)))
+               RETURN(0);
 
-static int osd_oi_iam_insert(struct osd_thread_info *oti, struct osd_oi *oi,
-                             const struct dt_rec *rec, const struct dt_key *key,
-                             struct thandle *th, int ignore_quota)
-{
-        struct iam_container  *bag;
-        struct iam_rec        *iam_rec = (struct iam_rec *)oti->oti_ldp;
-        struct iam_path_descr *ipd;
-        struct osd_thandle    *oh;
-        int                    rc;
-#ifdef HAVE_QUOTA_SUPPORT
-        cfs_cap_t              save    = cfs_curproc_cap_pack();
-#endif
-        ENTRY;
+       if (fid_is_idif(fid) || fid_is_last_id(fid))
+               RETURN(1);
 
-        LASSERT(oi);
-        LASSERT(oi->oi_inode);
+       rc = osd_fld_lookup(info->oti_env, osd, fid, range);
+       if (rc != 0) {
+               CERROR("%s: Can not lookup fld for "DFID"\n",
+                      osd2lu_dev(osd)->ld_obd->obd_name, PFID(fid));
+               RETURN(rc);
+       }
 
-        bag = &oi->oi_dir.od_container;
-        ipd = osd_idx_ipd_get(oti->oti_env, bag);
-        if (unlikely(ipd == NULL))
-                RETURN(-ENOMEM);
+       CDEBUG(D_INFO, "fid "DFID" range "DRANGE"\n", PFID(fid),
+              PRANGE(range));
 
-        oh = container_of0(th, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle != NULL);
-        LASSERT(oh->ot_handle->h_transaction != NULL);
-#ifdef HAVE_QUOTA_SUPPORT
-        if (ignore_quota)
-                cfs_cap_raise(CFS_CAP_SYS_RESOURCE);
-        else
-                cfs_cap_lower(CFS_CAP_SYS_RESOURCE);
-#endif
-        if (S_ISDIR(oi->oi_inode->i_mode))
-                osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
-                             &oti->oti_fid);
-        else
-                iam_rec = (struct iam_rec *) rec;
-        rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
-                        iam_rec, ipd);
-#ifdef HAVE_QUOTA_SUPPORT
-        cfs_curproc_cap_unpack(save);
-#endif
-        osd_ipd_put(oti->oti_env, bag, ipd);
-        LINVRNT(osd_invariant(obj));
-        RETURN(rc);
+       if (range->lsr_flags == LU_SEQ_RANGE_OST)
+               RETURN(1);
+
+       RETURN(0);
 }
 
-int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
-                  const struct lu_fid *fid, const struct osd_inode_id *id0,
-                  struct thandle *th, int ignore_quota)
+int __osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
+                   const struct lu_fid *fid, struct osd_inode_id *id)
+{
+       struct lu_fid *oi_fid = &info->oti_fid2;
+       int            rc;
+
+       fid_cpu_to_be(oi_fid, fid);
+       rc = osd_oi_iam_lookup(info, osd_fid2oi(osd, fid), (struct dt_rec *)id,
+                              (const struct dt_key *)oi_fid);
+       if (rc > 0) {
+               osd_id_unpack(id, id);
+               rc = 0;
+       } else if (rc == 0) {
+               rc = -ENOENT;
+       }
+       return rc;
+}
+
+int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
+                 const struct lu_fid *fid, struct osd_inode_id *id,
+                 bool check_fld)
 {
-        struct lu_fid       *oi_fid = &info->oti_fid;
-        struct osd_inode_id *id;
-        const struct dt_key *key;
+       if (unlikely(fid_is_last_id(fid)))
+               return osd_obj_spec_lookup(info, osd, fid, id);
 
-        if (fid_is_igif(fid))
-                return 0;
+       if ((check_fld && fid_is_on_ost(info, osd, fid)) || fid_is_llog(fid))
+               return osd_obj_map_lookup(info, osd, fid, id);
 
-        if (fid_is_idif(fid) || fid_seq(fid) == FID_SEQ_LLOG)
-                return osd_compat_objid_insert(info, osd, fid, id0, th);
+       if (fid_is_fs_root(fid)) {
+               osd_id_gen(id, osd_sb(osd)->s_root->d_inode->i_ino,
+                          osd_sb(osd)->s_root->d_inode->i_generation);
+               return 0;
+       }
 
-        /* notice we don't return immediately, but continue to get into OI */
-        if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
-                osd_compat_spec_insert(info, osd, fid, id0, th);
+       if (unlikely(fid_is_acct(fid)))
+               return osd_acct_obj_lookup(info, osd, fid, id);
 
-        fid_cpu_to_be(oi_fid, fid);
-        key = (struct dt_key *)oi_fid;
+       return __osd_oi_lookup(info, osd, fid, id);
+}
 
-        id  = &info->oti_id;
-        id->oii_ino = cpu_to_be32(id0->oii_ino);
-        id->oii_gen = cpu_to_be32(id0->oii_gen);
+static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
+                            const struct dt_rec *rec, const struct dt_key *key,
+                            struct thandle *th, bool insert)
+{
+       struct iam_container    *bag;
+       struct iam_path_descr   *ipd;
+       struct osd_thandle      *oh;
+       int                     rc;
+       ENTRY;
+
+       LASSERT(oi);
+       LASSERT(oi->oi_inode);
+       ll_vfs_dq_init(oi->oi_inode);
+
+       bag = &oi->oi_dir.od_container;
+       ipd = osd_idx_ipd_get(oti->oti_env, bag);
+       if (unlikely(ipd == NULL))
+               RETURN(-ENOMEM);
+
+       oh = container_of0(th, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle != NULL);
+       LASSERT(oh->ot_handle->h_transaction != NULL);
+       if (insert)
+               rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
+                               (const struct iam_rec *)rec, ipd);
+       else
+               rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)key,
+                               (const struct iam_rec *)rec, ipd);
+       osd_ipd_put(oti->oti_env, bag, ipd);
+       LINVRNT(osd_invariant(obj));
+       RETURN(rc);
+}
 
-        return osd_oi_iam_insert(info, osd_fid2oi(osd, fid),
-                                 (struct dt_rec *)id, key, th, ignore_quota);
+int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
+                 const struct lu_fid *fid, const struct osd_inode_id *id,
+                 struct thandle *th)
+{
+       struct lu_fid       *oi_fid = &info->oti_fid2;
+       struct osd_inode_id *oi_id  = &info->oti_id2;
+       int                  rc     = 0;
+
+       if (unlikely(fid_is_last_id(fid)))
+               return osd_obj_spec_insert(info, osd, fid, id, th);
+
+       if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
+               return osd_obj_map_insert(info, osd, fid, id, th);
+
+       fid_cpu_to_be(oi_fid, fid);
+       osd_id_pack(oi_id, id);
+       rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
+                              (const struct dt_rec *)oi_id,
+                              (const struct dt_key *)oi_fid, th, true);
+       if (rc != 0) {
+               struct inode *inode;
+               struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
+
+               if (rc != -EEXIST)
+                       return rc;
+
+               rc = osd_oi_lookup(info, osd, fid, oi_id, false);
+               if (unlikely(rc != 0))
+                       return rc;
+
+               if (osd_id_eq(id, oi_id)) {
+                       CERROR("%.16s: the FID "DFID" is there already:%u/%u\n",
+                              LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+                              PFID(fid), id->oii_ino, id->oii_gen);
+                       return -EEXIST;
+               }
+
+               /* Check whether the mapping for oi_id is valid or not. */
+               inode = osd_iget(info, osd, oi_id);
+               if (IS_ERR(inode)) {
+                       rc = PTR_ERR(inode);
+                       if (rc == -ENOENT || rc == -ESTALE)
+                               goto update;
+                       return rc;
+               }
+
+               rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
+               iput(inode);
+               if (rc == -ENODATA)
+                       goto update;
+
+               if (rc != 0)
+                       return rc;
+
+               if (lu_fid_eq(fid, &lma->lma_self_fid)) {
+                       CERROR("%.16s: the FID "DFID" is used by two objects: "
+                              "%u/%u %u/%u\n",
+                              LDISKFS_SB(osd_sb(osd))->s_es->s_volume_name,
+                              PFID(fid), oi_id->oii_ino, oi_id->oii_gen,
+                              id->oii_ino, id->oii_gen);
+                       return -EEXIST;
+               }
+
+update:
+               osd_id_pack(oi_id, id);
+               rc = osd_oi_iam_refresh(info, osd_fid2oi(osd, fid),
+                                       (const struct dt_rec *)oi_id,
+                                       (const struct dt_key *)oi_fid, th, false);
+               if (rc != 0)
+                       return rc;
+       }
+
+       if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE))
+               rc = osd_obj_spec_insert(info, osd, fid, id, th);
+       return rc;
 }
 
 static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
@@ -566,6 +649,8 @@ static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
         ENTRY;
 
         LASSERT(oi);
+       LASSERT(oi->oi_inode);
+       ll_vfs_dq_init(oi->oi_inode);
 
         bag = &oi->oi_dir.od_container;
         ipd = osd_idx_ipd_get(oti->oti_env, bag);
@@ -583,27 +668,23 @@ static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
 }
 
 int osd_oi_delete(struct osd_thread_info *info,
-                  struct osd_device *osd, const struct lu_fid *fid,
-                  struct thandle *th)
+                 struct osd_device *osd, const struct lu_fid *fid,
+                 struct thandle *th)
 {
-        struct lu_fid       *oi_fid = &info->oti_fid;
-        const struct dt_key *key;
-
-        if (!fid_is_norm(fid))
-                return 0;
-
-        LASSERT(fid_seq(fid) != FID_SEQ_LOCAL_FILE);
+       struct lu_fid *oi_fid = &info->oti_fid2;
 
-        if (fid_is_idif(fid) || fid_seq(fid) == FID_SEQ_LLOG)
-                return osd_compat_objid_delete(info, osd, fid, th);
+       if (fid_is_last_id(fid))
+               return 0;
 
-        fid_cpu_to_be(oi_fid, fid);
-        key = (struct dt_key *)oi_fid;
+       if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
+               return osd_obj_map_delete(info, osd, fid, th);
 
-        return osd_oi_iam_delete(info, osd_fid2oi(osd, fid), key, th);
+       fid_cpu_to_be(oi_fid, fid);
+       return osd_oi_iam_delete(info, osd_fid2oi(osd, fid),
+                                (const struct dt_key *)oi_fid, th);
 }
 
-int osd_oi_mod_init()
+int osd_oi_mod_init(void)
 {
         if (osd_oi_count == 0 || osd_oi_count > OSD_OI_FID_NR_MAX)
                 osd_oi_count = OSD_OI_FID_NR;
@@ -614,6 +695,6 @@ int osd_oi_mod_init()
                 osd_oi_count = size_roundup_power2(osd_oi_count);
         }
 
-        cfs_mutex_init(&oi_init_lock);
+       mutex_init(&oi_init_lock);
         return 0;
 }