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LU-2240 mds: Assign special fid sequence to root.
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_oi.c
index 1548eb4..118359a 100644 (file)
@@ -1,6 +1,4 @@
-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
  * GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
@@ -28,6 +26,8 @@
 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
+ *
+ * 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,
@@ -94,6 +79,128 @@ 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 iam_container *bag;
+       int                   i;
+
+       for (i = 0; i < oi_count; i++) {
+               if (oi_table[i] == NULL)
+                       continue;
+
+               LASSERT(oi_table[i]->oi_inode != NULL);
+
+               bag = &(oi_table[i]->oi_dir.od_container);
+               if (bag->ic_object == oi_table[i]->oi_inode)
+                       iam_container_fini(bag);
+               iput(oi_table[i]->oi_inode);
+               oi_table[i]->oi_inode = NULL;
+               OBD_FREE_PTR(oi_table[i]);
+               oi_table[i] = NULL;
+       }
+}
+
+static int osd_oi_index_create_one(struct osd_thread_info *info,
+                                  struct osd_device *osd, const char *name,
+                                  struct dt_index_features *feat)
+{
+       const struct lu_env             *env = info->oti_env;
+       struct osd_inode_id             *id  = &info->oti_id;
+       struct buffer_head              *bh;
+       struct inode                    *inode;
+       struct ldiskfs_dir_entry_2      *de;
+       struct dentry                   *dentry;
+       struct super_block              *sb  = osd_sb(osd);
+       struct inode                    *dir = sb->s_root->d_inode;
+       handle_t                        *jh;
+       int                              rc;
+
+       dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
+       bh = osd_ldiskfs_find_entry(dir, dentry, &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,
+                                       struct osd_device *osd,
+                                       const char *name,
+                                       struct dt_index_features *f,
+                                       bool create)
+{
+        struct dentry *dentry;
+        struct inode  *inode;
+        int            rc;
+
+        dentry = ll_lookup_one_len(name, osd_sb(osd)->s_root, strlen(name));
+        if (IS_ERR(dentry))
+                return (void *) dentry;
+
+        if (dentry->d_inode) {
+                LASSERT(!is_bad_inode(dentry->d_inode));
+                inode = dentry->d_inode;
+                atomic_inc(&inode->i_count);
+                dput(dentry);
+                return inode;
+        }
+
+        /* create */
+        dput(dentry);
+        shrink_dcache_parent(osd_sb(osd)->s_root);
+        if (!create)
+                return ERR_PTR(-ENOENT);
+
+        rc = osd_oi_index_create_one(info, osd, name, f);
+        if (rc)
+               return ERR_PTR(rc);
+
+        dentry = ll_lookup_one_len(name, osd_sb(osd)->s_root, strlen(name));
+        if (IS_ERR(dentry))
+                return (void *) dentry;
+
+        if (dentry->d_inode) {
+                LASSERT(!is_bad_inode(dentry->d_inode));
+                inode = dentry->d_inode;
+                atomic_inc(&inode->i_count);
+                dput(dentry);
+                return inode;
+        }
+
+        return ERR_PTR(-ENOENT);
+}
+
 /**
  * Open an OI(Ojbect Index) container.
  *
@@ -103,46 +210,51 @@ static struct dt_index_features oi_feat = {
  * \retval      0       success
  * \retval      -ve     failure
  */
-static int
-osd_oi_open(struct osd_thread_info *info,
-            struct dt_device *dev, char *name, struct dt_object **objp)
+static int osd_oi_open(struct osd_thread_info *info, struct osd_device *osd,
+                       char *name, struct osd_oi **oi_slot, bool create)
 {
-        const struct lu_env *env = info->oti_env;
-        struct dt_object    *obj;
-        int                  rc;
-
-        obj = dt_store_open(env, dev, "", name, &info->oti_fid);
-        if (IS_ERR(obj))
-                return PTR_ERR(obj);
-
-        oi_feat.dif_keysize_min = sizeof(info->oti_fid);
-        oi_feat.dif_keysize_max = sizeof(info->oti_fid);
-
-        rc = obj->do_ops->do_index_try(env, obj, &oi_feat);
-        if (rc != 0) {
-                lu_object_put(info->oti_env, &obj->do_lu);
-                CERROR("%s: wrong index %s: rc = %d\n",
-                       dev->dd_lu_dev.ld_obd->obd_name, name, rc);
-                return rc;
-        }
+        struct osd_directory *dir;
+        struct iam_container *bag;
+        struct inode         *inode;
+        struct osd_oi        *oi;
+        int                   rc;
 
-        *objp = obj;
-        return 0;
-}
+        ENTRY;
 
+        oi_feat.dif_keysize_min = sizeof(struct lu_fid);
+        oi_feat.dif_keysize_max = sizeof(struct lu_fid);
 
-static void
-osd_oi_table_put(struct osd_thread_info *info,
-                 struct osd_oi *oi_table, unsigned oi_count)
-{
-        int     i;
+        inode = osd_oi_index_open(info, osd, name, &oi_feat, create);
+        if (IS_ERR(inode))
+                RETURN(PTR_ERR(inode));
 
-        for (i = 0; i < oi_count; i++) {
-                LASSERT(oi_table[i].oi_dir != NULL);
+       ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
+        OBD_ALLOC_PTR(oi);
+        if (oi == NULL)
+                GOTO(out_inode, rc = -ENOMEM);
 
-                lu_object_put(info->oti_env, &oi_table[i].oi_dir->do_lu);
-                oi_table[i].oi_dir = NULL;
-        }
+        oi->oi_inode = inode;
+        dir = &oi->oi_dir;
+
+        bag = &dir->od_container;
+        rc = iam_container_init(bag, &dir->od_descr, inode);
+        if (rc < 0)
+                GOTO(out_free, rc);
+
+        rc = iam_container_setup(bag);
+        if (rc < 0)
+                GOTO(out_container, rc);
+
+        *oi_slot = oi;
+        RETURN(0);
+
+out_container:
+        iam_container_fini(bag);
+out_free:
+        OBD_FREE_PTR(oi);
+out_inode:
+        iput(inode);
+        return rc;
 }
 
 /**
@@ -156,231 +268,423 @@ osd_oi_table_put(struct osd_thread_info *info,
  * success, or error code in failure.
  *
  * \param     oi_count  Number of expected OI containers
- * \param     try_all   Try to open all OIs even see failures
+ * \param     create    Create OIs if doesn't exist
  *
  * \retval    +ve       number of opened OI containers
  * \retval      0       no OI containers found
  * \retval    -ve       failure
  */
 static int
-osd_oi_table_open(struct osd_thread_info *info, struct dt_device *dev,
-                  struct osd_oi *oi_table, unsigned oi_count, int try_all)
+osd_oi_table_open(struct osd_thread_info *info, struct osd_device *osd,
+                 struct osd_oi **oi_table, unsigned oi_count, bool create)
 {
-        int     count = 0;
-        int     rc = 0;
-        int     i;
+       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);
+}
 
-        /* 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);
+int osd_oi_init(struct osd_thread_info *info, struct osd_device *osd)
+{
+       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);
+
+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;
+       }
+
+       mutex_unlock(&oi_init_lock);
+       return rc;
+}
 
-        for (i = 0; i < (oi_count != 0 ? oi_count : OSD_OI_FID_NR_MAX); i++) {
-                char name[12];
+void osd_oi_fini(struct osd_thread_info *info, struct osd_device *osd)
+{
+       if (unlikely(osd->od_oi_table == NULL))
+               return;
 
-                sprintf(name, "%s.%d", OSD_OI_NAME_BASE, i);
-                rc = osd_oi_open(info, dev, name, &oi_table[i].oi_dir);
-                if (rc == 0) {
-                        count++;
-                        continue;
-                }
+        osd_oi_table_put(info, osd->od_oi_table, osd->od_oi_count);
 
-                if (try_all)
-                        continue;
+        OBD_FREE(osd->od_oi_table,
+                 sizeof(*(osd->od_oi_table)) * OSD_OI_FID_NR_MAX);
+        osd->od_oi_table = NULL;
+}
 
-                if (rc == -ENOENT && oi_count == 0)
-                        return count;
+static inline int fid_is_fs_root(const struct lu_fid *fid)
+{
+        /* Map root inode to special local object FID */
+        return (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE &&
+                         fid_oid(fid) == OSD_FS_ROOT_OID));
+}
 
-                CERROR("%s: can't open %s: rc = %d\n",
-                       dev->dd_lu_dev.ld_obd->obd_name, name, rc);
+static int osd_oi_iam_lookup(struct osd_thread_info *oti,
+                             struct osd_oi *oi, struct dt_rec *rec,
+                             const struct dt_key *key)
+{
+        struct iam_container  *bag;
+        struct iam_iterator   *it = &oti->oti_idx_it;
+        struct iam_path_descr *ipd;
+        int                    rc;
+        ENTRY;
 
-                if (oi_count > 0) {
-                        CERROR("%s: expect to open total %d OI files.\n",
-                               dev->dd_lu_dev.ld_obd->obd_name, oi_count);
-                }
+        LASSERT(oi);
+        LASSERT(oi->oi_inode);
 
-                break;
-        }
+        bag = &oi->oi_dir.od_container;
+        ipd = osd_idx_ipd_get(oti->oti_env, bag);
+        if (IS_ERR(ipd))
+                RETURN(-ENOMEM);
 
-        if (try_all)
-                return count;
+        /* got ipd now we can start iterator. */
+        iam_it_init(it, bag, 0, ipd);
 
-        if (rc < 0) {
-                osd_oi_table_put(info, oi_table, count);
-                return rc;
-        }
+        rc = iam_it_get(it, (struct iam_key *)key);
+       if (rc > 0)
+               iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)rec);
+        iam_it_put(it);
+        iam_it_fini(it);
+        osd_ipd_put(oti->oti_env, bag, ipd);
 
-        return count;
-}
+        LINVRNT(osd_invariant(obj));
 
-static int osd_oi_table_create(struct osd_thread_info *info,
-                               struct dt_device *dev,
-                               struct md_device *mdev, int oi_count)
-{
-        const struct lu_env *env;
-        struct md_object *mdo;
-        int i;
-
-        env = info->oti_env;
-        for (i = 0; i < oi_count; ++i) {
-                char name[12];
-
-                sprintf(name, "%s.%d", OSD_OI_NAME_BASE, i);
-
-                lu_local_obj_fid(&info->oti_fid, OSD_OI_FID_OID_FIRST + i);
-                oi_feat.dif_keysize_min = sizeof(info->oti_fid);
-                oi_feat.dif_keysize_max = sizeof(info->oti_fid);
-
-                mdo = llo_store_create_index(env, mdev, dev, "", name,
-                                             &info->oti_fid, &oi_feat);
-                if (IS_ERR(mdo)) {
-                        CERROR("Failed to create OI[%d] on %s: %d\n",
-                               i, dev->dd_lu_dev.ld_obd->obd_name,
-                               (int)PTR_ERR(mdo));
-                        RETURN(PTR_ERR(mdo));
-                }
-
-                lu_object_put(env, &mdo->mo_lu);
-        }
-        return 0;
+        RETURN(rc);
 }
 
-int osd_oi_init(struct osd_thread_info *info,
-                struct osd_oi **oi_table,
-                struct dt_device *dev,
-                struct md_device *mdev)
+int fid_is_on_ost(struct osd_thread_info *info, struct osd_device *osd,
+                 const struct lu_fid *fid)
 {
-        struct osd_oi *oi;
-        int rc;
-
-        OBD_ALLOC(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
-        if (oi == NULL)
-                return -ENOMEM;
+       struct lu_seq_range *range = &info->oti_seq_range;
+       int rc;
+       ENTRY;
 
-        cfs_mutex_lock(&oi_init_lock);
+       if (unlikely(fid_is_local_file(fid) || fid_is_igif(fid)))
+               RETURN(0);
 
-        rc = osd_oi_table_open(info, dev, oi, 0, 0);
-        if (rc != 0)
-                goto out;
+       if (fid_is_idif(fid) || fid_is_last_id(fid))
+               RETURN(1);
 
-        rc = osd_oi_open(info, dev, OSD_OI_NAME_BASE, &oi[0].oi_dir);
-        if (rc == 0) { /* found single OI from old filesystem */
-                rc = 1;
-                goto out;
-        }
-
-        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;
-        }
+       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);
+       }
 
-        /* create OI objects */
-        rc = osd_oi_table_create(info, dev, mdev, osd_oi_count);
-        if (rc != 0)
-                goto out;
+       CDEBUG(D_INFO, "fid "DFID" range "DRANGE"\n", PFID(fid),
+              PRANGE(range));
 
-        rc = osd_oi_table_open(info, dev, oi, osd_oi_count, 0);
-        LASSERT(rc == osd_oi_count || rc < 0);
+       if (range->lsr_flags == LU_SEQ_RANGE_OST)
+               RETURN(1);
 
- out:
-        if (rc < 0) {
-                OBD_FREE(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
-        } else {
-                LASSERT((rc & (rc - 1)) == 0);
-                *oi_table = oi;
-        }
+       RETURN(0);
+}
 
-        cfs_mutex_unlock(&oi_init_lock);
-        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)
+{
+       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;
 }
 
-void osd_oi_fini(struct osd_thread_info *info,
-                 struct osd_oi **oi_table, unsigned oi_count)
+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 osd_oi *oi = *oi_table;
+       if (unlikely(fid_is_last_id(fid)))
+               return osd_obj_spec_lookup(info, osd, fid, id);
+
+       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_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;
+       }
 
-        osd_oi_table_put(info, oi, oi_count);
+       if (unlikely(fid_is_acct(fid)))
+               return osd_acct_obj_lookup(info, osd, fid, id);
 
-        OBD_FREE(oi, sizeof(*oi) * OSD_OI_FID_NR_MAX);
-        *oi_table = NULL;
+       return __osd_oi_lookup(info, osd, fid, id);
 }
 
-int osd_oi_lookup(struct osd_thread_info *info, struct osd_oi *oi,
-                  const struct lu_fid *fid, struct osd_inode_id *id)
+static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
+                            const struct dt_rec *rec, const struct dt_key *key,
+                            struct thandle *th, bool insert)
 {
-        struct lu_fid *oi_fid = &info->oti_fid;
-        int rc;
-
-        if (osd_fid_is_igif(fid)) {
-                lu_igif_to_id(fid, id);
-                rc = 0;
-        } else {
-                struct dt_object    *idx;
-                const struct dt_key *key;
-
-                if (!fid_is_norm(fid))
-                        return -ENOENT;
-
-                idx = oi->oi_dir;
-                fid_cpu_to_be(oi_fid, fid);
-                key = (struct dt_key *) oi_fid;
-                rc = idx->do_index_ops->dio_lookup(info->oti_env, idx,
-                                                   (struct dt_rec *)id, key,
-                                                   BYPASS_CAPA);
-                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;
-        }
-        return rc;
+       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);
+}
+
+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;
 }
 
-int osd_oi_insert(struct osd_thread_info *info, struct osd_oi *oi,
-                  const struct lu_fid *fid, const struct osd_inode_id *id0,
-                  struct thandle *th, int ignore_quota)
+static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
+                             const struct dt_key *key, struct thandle *handle)
 {
-        struct lu_fid *oi_fid = &info->oti_fid;
-        struct dt_object    *idx;
-        struct osd_inode_id *id;
-        const struct dt_key *key;
-
-        if (!fid_is_norm(fid))
-                return 0;
-
-        idx = oi->oi_dir;
-        fid_cpu_to_be(oi_fid, fid);
-        key = (struct dt_key *) oi_fid;
-
-        id  = &info->oti_id;
-        id->oii_ino = cpu_to_be32(id0->oii_ino);
-        id->oii_gen = cpu_to_be32(id0->oii_gen);
-        return idx->do_index_ops->dio_insert(info->oti_env, idx,
-                                             (struct dt_rec *)id,
-                                             key, th, BYPASS_CAPA,
-                                             ignore_quota);
+        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(handle, struct osd_thandle, ot_super);
+        LASSERT(oh->ot_handle != NULL);
+        LASSERT(oh->ot_handle->h_transaction != NULL);
+
+        rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
+        osd_ipd_put(oti->oti_env, bag, ipd);
+        LINVRNT(osd_invariant(obj));
+        RETURN(rc);
 }
 
 int osd_oi_delete(struct osd_thread_info *info,
-                  struct osd_oi *oi, 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;
-        struct dt_object    *idx;
-        const struct dt_key *key;
-
-        if (!fid_is_norm(fid))
-                return 0;
-
-        idx = oi->oi_dir;
-        fid_cpu_to_be(oi_fid, fid);
-        key = (struct dt_key *) oi_fid;
-        return idx->do_index_ops->dio_delete(info->oti_env, idx,
-                                             key, th, BYPASS_CAPA);
+       struct lu_fid *oi_fid = &info->oti_fid2;
+
+       if (fid_is_last_id(fid))
+               return 0;
+
+       if (fid_is_on_ost(info, osd, fid) || fid_is_llog(fid))
+               return osd_obj_map_delete(info, osd, fid, th);
+
+       fid_cpu_to_be(oi_fid, fid);
+       return osd_oi_iam_delete(info, osd_fid2oi(osd, fid),
+                                (const struct dt_key *)oi_fid, th);
 }
 
-int osd_oi_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;
@@ -391,6 +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;
 }