ocfs2: add IO error check in ocfs2_get_sector()
[safe/jmp/linux-2.6] / fs / ocfs2 / xattr.c
index bc822d6..4ddd788 100644 (file)
@@ -82,13 +82,14 @@ struct ocfs2_xattr_set_ctxt {
 
 #define OCFS2_XATTR_ROOT_SIZE  (sizeof(struct ocfs2_xattr_def_value_root))
 #define OCFS2_XATTR_INLINE_SIZE        80
+#define OCFS2_XATTR_HEADER_GAP 4
 #define OCFS2_XATTR_FREE_IN_IBODY      (OCFS2_MIN_XATTR_INLINE_SIZE \
                                         - sizeof(struct ocfs2_xattr_header) \
-                                        - sizeof(__u32))
+                                        - OCFS2_XATTR_HEADER_GAP)
 #define OCFS2_XATTR_FREE_IN_BLOCK(ptr) ((ptr)->i_sb->s_blocksize \
                                         - sizeof(struct ocfs2_xattr_block) \
                                         - sizeof(struct ocfs2_xattr_header) \
-                                        - sizeof(__u32))
+                                        - OCFS2_XATTR_HEADER_GAP)
 
 static struct ocfs2_xattr_def_value_root def_xv = {
        .xv.xr_list.l_count = cpu_to_le16(1),
@@ -273,6 +274,17 @@ static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
        rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
                               bucket->bu_blocks, bucket->bu_bhs, 0,
                               NULL);
+       if (!rc) {
+               spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
+               rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
+                                                bucket->bu_bhs,
+                                                bucket->bu_blocks,
+                                                &bucket_xh(bucket)->xh_check);
+               spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
+               if (rc)
+                       mlog_errno(rc);
+       }
+
        if (rc)
                ocfs2_xattr_bucket_relse(bucket);
        return rc;
@@ -301,6 +313,12 @@ static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
 {
        int i;
 
+       spin_lock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
+       ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
+                                  bucket->bu_bhs, bucket->bu_blocks,
+                                  &bucket_xh(bucket)->xh_check);
+       spin_unlock(&OCFS2_SB(bucket->bu_inode->i_sb)->osb_xattr_lock);
+
        for (i = 0; i < bucket->bu_blocks; i++)
                ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
 }
@@ -477,9 +495,14 @@ int ocfs2_calc_security_init(struct inode *dir,
        }
 
        /* reserve clusters for xattr value which will be set in B tree*/
-       if (si->value_len > OCFS2_XATTR_INLINE_SIZE)
-               *want_clusters += ocfs2_clusters_for_bytes(dir->i_sb,
-                                                          si->value_len);
+       if (si->value_len > OCFS2_XATTR_INLINE_SIZE) {
+               int new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
+                                                           si->value_len);
+
+               *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+                                                          new_clusters);
+               *want_clusters += new_clusters;
+       }
        return ret;
 }
 
@@ -493,9 +516,7 @@ int ocfs2_calc_xattr_init(struct inode *dir,
 {
        int ret = 0;
        struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
-       int s_size = 0;
-       int a_size = 0;
-       int acl_len = 0;
+       int s_size = 0, a_size = 0, acl_len = 0, new_clusters;
 
        if (si->enable)
                s_size = ocfs2_xattr_entry_real_size(strlen(si->name),
@@ -543,16 +564,25 @@ int ocfs2_calc_xattr_init(struct inode *dir,
                *xattr_credits += ocfs2_blocks_per_xattr_bucket(dir->i_sb);
        }
 
-       /* reserve clusters for xattr value which will be set in B tree*/
-       if (si->enable && si->value_len > OCFS2_XATTR_INLINE_SIZE)
-               *want_clusters += ocfs2_clusters_for_bytes(dir->i_sb,
-                                                          si->value_len);
+       /*
+        * reserve credits and clusters for xattrs which has large value
+        * and have to be set outside
+        */
+       if (si->enable && si->value_len > OCFS2_XATTR_INLINE_SIZE) {
+               new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
+                                                       si->value_len);
+               *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+                                                          new_clusters);
+               *want_clusters += new_clusters;
+       }
        if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL &&
            acl_len > OCFS2_XATTR_INLINE_SIZE) {
-               *want_clusters += ocfs2_clusters_for_bytes(dir->i_sb, acl_len);
-               if (S_ISDIR(mode))
-                       *want_clusters += ocfs2_clusters_for_bytes(dir->i_sb,
-                                                                  acl_len);
+               /* for directory, it has DEFAULT and ACCESS two types of acls */
+               new_clusters = (S_ISDIR(mode) ? 2 : 1) *
+                               ocfs2_clusters_for_bytes(dir->i_sb, acl_len);
+               *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+                                                          new_clusters);
+               *want_clusters += new_clusters;
        }
 
        return ret;
@@ -560,29 +590,28 @@ int ocfs2_calc_xattr_init(struct inode *dir,
 
 static int ocfs2_xattr_extend_allocation(struct inode *inode,
                                         u32 clusters_to_add,
-                                        struct buffer_head *xattr_bh,
-                                        struct ocfs2_xattr_value_root *xv,
+                                        struct ocfs2_xattr_value_buf *vb,
                                         struct ocfs2_xattr_set_ctxt *ctxt)
 {
        int status = 0;
        handle_t *handle = ctxt->handle;
        enum ocfs2_alloc_restarted why;
        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
-       u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters);
+       u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
        struct ocfs2_extent_tree et;
 
        mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
 
-       ocfs2_init_xattr_value_extent_tree(&et, inode, xattr_bh, xv);
+       ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
 
-       status = ocfs2_journal_access(handle, inode, xattr_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = vb->vb_access(handle, inode, vb->vb_bh,
+                             OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
        }
 
-       prev_clusters = le32_to_cpu(xv->xr_clusters);
+       prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
        status = ocfs2_add_clusters_in_btree(osb,
                                             inode,
                                             &logical_start,
@@ -598,13 +627,13 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
                goto leave;
        }
 
-       status = ocfs2_journal_dirty(handle, xattr_bh);
+       status = ocfs2_journal_dirty(handle, vb->vb_bh);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
        }
 
-       clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters;
+       clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
 
        /*
         * We should have already allocated enough space before the transaction,
@@ -618,8 +647,7 @@ leave:
 }
 
 static int __ocfs2_remove_xattr_range(struct inode *inode,
-                                     struct buffer_head *root_bh,
-                                     struct ocfs2_xattr_value_root *xv,
+                                     struct ocfs2_xattr_value_buf *vb,
                                      u32 cpos, u32 phys_cpos, u32 len,
                                      struct ocfs2_xattr_set_ctxt *ctxt)
 {
@@ -628,10 +656,10 @@ static int __ocfs2_remove_xattr_range(struct inode *inode,
        handle_t *handle = ctxt->handle;
        struct ocfs2_extent_tree et;
 
-       ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv);
+       ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
 
-       ret = ocfs2_journal_access(handle, inode, root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = vb->vb_access(handle, inode, vb->vb_bh,
+                           OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
@@ -644,9 +672,9 @@ static int __ocfs2_remove_xattr_range(struct inode *inode,
                goto out;
        }
 
-       le32_add_cpu(&xv->xr_clusters, -len);
+       le32_add_cpu(&vb->vb_xv->xr_clusters, -len);
 
-       ret = ocfs2_journal_dirty(handle, root_bh);
+       ret = ocfs2_journal_dirty(handle, vb->vb_bh);
        if (ret) {
                mlog_errno(ret);
                goto out;
@@ -663,8 +691,7 @@ out:
 static int ocfs2_xattr_shrink_size(struct inode *inode,
                                   u32 old_clusters,
                                   u32 new_clusters,
-                                  struct buffer_head *root_bh,
-                                  struct ocfs2_xattr_value_root *xv,
+                                  struct ocfs2_xattr_value_buf *vb,
                                   struct ocfs2_xattr_set_ctxt *ctxt)
 {
        int ret = 0;
@@ -678,7 +705,8 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
        trunc_len = old_clusters - new_clusters;
        while (trunc_len) {
                ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos,
-                                              &alloc_size, &xv->xr_list);
+                                              &alloc_size,
+                                              &vb->vb_xv->xr_list);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
@@ -687,7 +715,7 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
                if (alloc_size > trunc_len)
                        alloc_size = trunc_len;
 
-               ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos,
+               ret = __ocfs2_remove_xattr_range(inode, vb, cpos,
                                                 phys_cpos, alloc_size,
                                                 ctxt);
                if (ret) {
@@ -707,14 +735,13 @@ out:
 }
 
 static int ocfs2_xattr_value_truncate(struct inode *inode,
-                                     struct buffer_head *root_bh,
-                                     struct ocfs2_xattr_value_root *xv,
+                                     struct ocfs2_xattr_value_buf *vb,
                                      int len,
                                      struct ocfs2_xattr_set_ctxt *ctxt)
 {
        int ret;
        u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len);
-       u32 old_clusters = le32_to_cpu(xv->xr_clusters);
+       u32 old_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
 
        if (new_clusters == old_clusters)
                return 0;
@@ -722,11 +749,11 @@ static int ocfs2_xattr_value_truncate(struct inode *inode,
        if (new_clusters > old_clusters)
                ret = ocfs2_xattr_extend_allocation(inode,
                                                    new_clusters - old_clusters,
-                                                   root_bh, xv, ctxt);
+                                                   vb, ctxt);
        else
                ret = ocfs2_xattr_shrink_size(inode,
                                              old_clusters, new_clusters,
-                                             root_bh, xv, ctxt);
+                                             vb, ctxt);
 
        return ret;
 }
@@ -1159,7 +1186,7 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
                                           const void *value,
                                           int value_len)
 {
-       int ret = 0, i, cp_len, credits;
+       int ret = 0, i, cp_len;
        u16 blocksize = inode->i_sb->s_blocksize;
        u32 p_cluster, num_clusters;
        u32 cpos = 0, bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
@@ -1169,18 +1196,6 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
 
        BUG_ON(clusters > le32_to_cpu(xv->xr_clusters));
 
-       /*
-        * In __ocfs2_xattr_set_value_outside has already been dirtied,
-        * so we don't need to worry about whether ocfs2_extend_trans
-        * will create a new transactio for us or not.
-        */
-       credits = clusters * bpc;
-       ret = ocfs2_extend_trans(handle, credits);
-       if (ret) {
-               mlog_errno(ret);
-               goto out;
-       }
-
        while (cpos < clusters) {
                ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster,
                                               &num_clusters, &xv->xr_list);
@@ -1242,6 +1257,7 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
                               handle_t *handle,
                               struct ocfs2_xattr_info *xi,
                               struct ocfs2_xattr_search *xs,
+                              struct ocfs2_xattr_value_buf *vb,
                               size_t offs)
 {
        int ret = 0;
@@ -1249,8 +1265,8 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
        void *val = xs->base + offs;
        size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
 
-       ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = vb->vb_access(handle, inode, vb->vb_bh,
+                           OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
@@ -1261,7 +1277,7 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
        memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry));
        memset(val, 0, size);
 
-       ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+       ret = ocfs2_journal_dirty(handle, vb->vb_bh);
        if (ret < 0)
                mlog_errno(ret);
 out:
@@ -1272,12 +1288,13 @@ static int ocfs2_xattr_update_entry(struct inode *inode,
                                    handle_t *handle,
                                    struct ocfs2_xattr_info *xi,
                                    struct ocfs2_xattr_search *xs,
+                                   struct ocfs2_xattr_value_buf *vb,
                                    size_t offs)
 {
        int ret;
 
-       ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = vb->vb_access(handle, inode, vb->vb_bh,
+                           OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
@@ -1291,7 +1308,7 @@ static int ocfs2_xattr_update_entry(struct inode *inode,
                ocfs2_xattr_set_local(xs->here, 0);
        ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
 
-       ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+       ret = ocfs2_journal_dirty(handle, vb->vb_bh);
        if (ret < 0)
                mlog_errno(ret);
 out:
@@ -1307,6 +1324,7 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
                                         struct ocfs2_xattr_info *xi,
                                         struct ocfs2_xattr_search *xs,
                                         struct ocfs2_xattr_set_ctxt *ctxt,
+                                        struct ocfs2_xattr_value_buf *vb,
                                         size_t offs)
 {
        size_t name_len = strlen(xi->name);
@@ -1324,19 +1342,19 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
        xv->xr_list.l_tree_depth = 0;
        xv->xr_list.l_count = cpu_to_le16(1);
        xv->xr_list.l_next_free_rec = 0;
+       vb->vb_xv = xv;
 
-       ret = ocfs2_xattr_value_truncate(inode, xs->xattr_bh, xv,
-                                        xi->value_len, ctxt);
+       ret = ocfs2_xattr_value_truncate(inode, vb, xi->value_len, ctxt);
        if (ret < 0) {
                mlog_errno(ret);
                return ret;
        }
-       ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, offs);
+       ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, vb, offs);
        if (ret < 0) {
                mlog_errno(ret);
                return ret;
        }
-       ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, xv,
+       ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, vb->vb_xv,
                                              xi->value, xi->value_len);
        if (ret < 0)
                mlog_errno(ret);
@@ -1473,6 +1491,16 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                .value = xi->value,
                .value_len = xi->value_len,
        };
+       struct ocfs2_xattr_value_buf vb = {
+               .vb_bh = xs->xattr_bh,
+               .vb_access = ocfs2_journal_access_di,
+       };
+
+       if (!(flag & OCFS2_INLINE_XATTR_FL)) {
+               BUG_ON(xs->xattr_bh == xs->inode_bh);
+               vb.vb_access = ocfs2_journal_access_xb;
+       } else
+               BUG_ON(xs->xattr_bh != xs->inode_bh);
 
        /* Compute min_offs, last and free space. */
        last = xs->header->xh_entries;
@@ -1484,7 +1512,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                last += 1;
        }
 
-       free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+       free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
        if (free < 0)
                return -EIO;
 
@@ -1528,15 +1556,14 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
                        /* Replace existing local xattr with tree root */
                        ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
-                                                           ctxt, offs);
+                                                           ctxt, &vb, offs);
                        if (ret < 0)
                                mlog_errno(ret);
                        goto out;
                } else if (!ocfs2_xattr_is_local(xs->here)) {
                        /* For existing xattr which has value outside */
-                       struct ocfs2_xattr_value_root *xv = NULL;
-                       xv = (struct ocfs2_xattr_value_root *)(val +
-                               OCFS2_XATTR_SIZE(name_len));
+                       vb.vb_xv = (struct ocfs2_xattr_value_root *)
+                               (val + OCFS2_XATTR_SIZE(name_len));
 
                        if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
                                /*
@@ -1545,8 +1572,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                                 * then set new value with set_value_outside().
                                 */
                                ret = ocfs2_xattr_value_truncate(inode,
-                                                                xs->xattr_bh,
-                                                                xv,
+                                                                &vb,
                                                                 xi->value_len,
                                                                 ctxt);
                                if (ret < 0) {
@@ -1558,6 +1584,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                                                               handle,
                                                               xi,
                                                               xs,
+                                                              &vb,
                                                               offs);
                                if (ret < 0) {
                                        mlog_errno(ret);
@@ -1566,7 +1593,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
 
                                ret = __ocfs2_xattr_set_value_outside(inode,
                                                                handle,
-                                                               xv,
+                                                               vb.vb_xv,
                                                                xi->value,
                                                                xi->value_len);
                                if (ret < 0)
@@ -1578,8 +1605,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                                 * just trucate old value to zero.
                                 */
                                 ret = ocfs2_xattr_value_truncate(inode,
-                                                                 xs->xattr_bh,
-                                                                 xv,
+                                                                 &vb,
                                                                  0,
                                                                  ctxt);
                                if (ret < 0)
@@ -1588,16 +1614,16 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                }
        }
 
-       ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
        }
 
        if (!(flag & OCFS2_INLINE_XATTR_FL)) {
-               ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = vb.vb_access(handle, inode, vb.vb_bh,
+                                  OCFS2_JOURNAL_ACCESS_WRITE);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
@@ -1642,10 +1668,6 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
        oi->ip_dyn_features |= flag;
        di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
        spin_unlock(&oi->ip_lock);
-       /* Update inode ctime */
-       inode->i_ctime = CURRENT_TIME;
-       di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
-       di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
 
        ret = ocfs2_journal_dirty(handle, xs->inode_bh);
        if (ret < 0)
@@ -1657,7 +1679,8 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                 * This is the second step for value size > INLINE_SIZE.
                 */
                size_t offs = le16_to_cpu(xs->here->xe_name_offset);
-               ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt, offs);
+               ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt,
+                                                   &vb, offs);
                if (ret < 0) {
                        int ret2;
 
@@ -1667,7 +1690,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
                         * the junk tree root we have already set in local.
                         */
                        ret2 = ocfs2_xattr_cleanup(inode, ctxt->handle,
-                                                  xi, xs, offs);
+                                                  xi, xs, &vb, offs);
                        if (ret2 < 0)
                                mlog_errno(ret2);
                }
@@ -1677,7 +1700,7 @@ out:
 }
 
 static int ocfs2_remove_value_outside(struct inode*inode,
-                                     struct buffer_head *bh,
+                                     struct ocfs2_xattr_value_buf *vb,
                                      struct ocfs2_xattr_header *header)
 {
        int ret = 0, i;
@@ -1698,15 +1721,13 @@ static int ocfs2_remove_value_outside(struct inode*inode,
                struct ocfs2_xattr_entry *entry = &header->xh_entries[i];
 
                if (!ocfs2_xattr_is_local(entry)) {
-                       struct ocfs2_xattr_value_root *xv;
                        void *val;
 
                        val = (void *)header +
                                le16_to_cpu(entry->xe_name_offset);
-                       xv = (struct ocfs2_xattr_value_root *)
+                       vb->vb_xv = (struct ocfs2_xattr_value_root *)
                                (val + OCFS2_XATTR_SIZE(entry->xe_name_len));
-                       ret = ocfs2_xattr_value_truncate(inode, bh, xv,
-                                                        0, &ctxt);
+                       ret = ocfs2_xattr_value_truncate(inode, vb, 0, &ctxt);
                        if (ret < 0) {
                                mlog_errno(ret);
                                break;
@@ -1728,12 +1749,16 @@ static int ocfs2_xattr_ibody_remove(struct inode *inode,
        struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
        struct ocfs2_xattr_header *header;
        int ret;
+       struct ocfs2_xattr_value_buf vb = {
+               .vb_bh = di_bh,
+               .vb_access = ocfs2_journal_access_di,
+       };
 
        header = (struct ocfs2_xattr_header *)
                 ((void *)di + inode->i_sb->s_blocksize -
                 le16_to_cpu(di->i_xattr_inline_size));
 
-       ret = ocfs2_remove_value_outside(inode, di_bh, header);
+       ret = ocfs2_remove_value_outside(inode, &vb, header);
 
        return ret;
 }
@@ -1743,11 +1768,15 @@ static int ocfs2_xattr_block_remove(struct inode *inode,
 {
        struct ocfs2_xattr_block *xb;
        int ret = 0;
+       struct ocfs2_xattr_value_buf vb = {
+               .vb_bh = blk_bh,
+               .vb_access = ocfs2_journal_access_xb,
+       };
 
        xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
        if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
                struct ocfs2_xattr_header *header = &(xb->xb_attrs.xb_header);
-               ret = ocfs2_remove_value_outside(inode, blk_bh, header);
+               ret = ocfs2_remove_value_outside(inode, &vb, header);
        } else
                ret = ocfs2_delete_xattr_index_block(inode, blk_bh);
 
@@ -1866,8 +1895,8 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh)
                mlog_errno(ret);
                goto out;
        }
-       ret = ocfs2_journal_access(handle, inode, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
@@ -2075,8 +2104,8 @@ static int ocfs2_xattr_block_set(struct inode *inode,
        int ret;
 
        if (!xs->xattr_bh) {
-               ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
-                                          OCFS2_JOURNAL_ACCESS_CREATE);
+               ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+                                             OCFS2_JOURNAL_ACCESS_CREATE);
                if (ret < 0) {
                        mlog_errno(ret);
                        goto end;
@@ -2093,8 +2122,8 @@ static int ocfs2_xattr_block_set(struct inode *inode,
                new_bh = sb_getblk(inode->i_sb, first_blkno);
                ocfs2_set_new_buffer_uptodate(inode, new_bh);
 
-               ret = ocfs2_journal_access(handle, inode, new_bh,
-                                          OCFS2_JOURNAL_ACCESS_CREATE);
+               ret = ocfs2_journal_access_xb(handle, inode, new_bh,
+                                             OCFS2_JOURNAL_ACCESS_CREATE);
                if (ret < 0) {
                        mlog_errno(ret);
                        goto end;
@@ -2166,7 +2195,7 @@ static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
                last += 1;
        }
 
-       free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+       free = min_offs - ((void *)last - xs->base) - OCFS2_XATTR_HEADER_GAP;
        if (free < 0)
                return 0;
 
@@ -2205,6 +2234,15 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
                                                    xi->value_len);
        u64 value_size;
 
+       /*
+        * Calculate the clusters we need to write.
+        * No matter whether we replace an old one or add a new one,
+        * we need this for writing.
+        */
+       if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+               credits += new_clusters *
+                          ocfs2_clusters_to_blocks(inode->i_sb, 1);
+
        if (xis->not_found && xbs->not_found) {
                credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
 
@@ -2338,13 +2376,21 @@ meta_guess:
                } else
                        xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
 
+               /*
+                * If there is already an xattr tree, good, we can calculate
+                * like other b-trees. Otherwise we may have the chance of
+                * create a tree, the credit calculation is borrowed from
+                * ocfs2_calc_extend_credits with root_el = NULL. And the
+                * new tree will be cluster based, so no meta is needed.
+                */
                if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
                        struct ocfs2_extent_list *el =
                                 &xb->xb_attrs.xb_root.xt_list;
                        meta_add += ocfs2_extend_meta_needed(el);
                        credits += ocfs2_calc_extend_credits(inode->i_sb,
                                                             el, 1);
-               }
+               } else
+                       credits += OCFS2_SUBALLOC_ALLOC + 1;
 
                /*
                 * This cluster will be used either for new bucket or for
@@ -2549,6 +2595,21 @@ static int __ocfs2_xattr_set_handle(struct inode *inode,
                }
        }
 
+       if (!ret) {
+               /* Update inode ctime. */
+               ret = ocfs2_journal_access_di(ctxt->handle, inode,
+                                             xis->inode_bh,
+                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               if (ret) {
+                       mlog_errno(ret);
+                       goto out;
+               }
+
+               inode->i_ctime = CURRENT_TIME;
+               di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
+               di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
+               ocfs2_journal_dirty(ctxt->handle, xis->inode_bh);
+       }
 out:
        return ret;
 }
@@ -2556,9 +2617,7 @@ out:
 /*
  * This function only called duing creating inode
  * for init security/acl xattrs of the new inode.
- * The xattrs could be put into ibody or extent block,
- * xattr bucket would not be use in this case.
- * transanction credits also be reserved in here.
+ * All transanction credits have been reserved in mknod.
  */
 int ocfs2_xattr_set_handle(handle_t *handle,
                           struct inode *inode,
@@ -2598,6 +2657,19 @@ int ocfs2_xattr_set_handle(handle_t *handle,
        if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
                return -EOPNOTSUPP;
 
+       /*
+        * In extreme situation, may need xattr bucket when
+        * block size is too small. And we have already reserved
+        * the credits for bucket in mknod.
+        */
+       if (inode->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE) {
+               xbs.bucket = ocfs2_xattr_bucket_new(inode);
+               if (!xbs.bucket) {
+                       mlog_errno(-ENOMEM);
+                       return -ENOMEM;
+               }
+       }
+
        xis.inode_bh = xbs.inode_bh = di_bh;
        di = (struct ocfs2_dinode *)di_bh->b_data;
 
@@ -2617,6 +2689,7 @@ int ocfs2_xattr_set_handle(handle_t *handle,
 cleanup:
        up_write(&OCFS2_I(inode)->ip_xattr_sem);
        brelse(xbs.xattr_bh);
+       ocfs2_xattr_bucket_free(xbs.bucket);
 
        return ret;
 }
@@ -2725,6 +2798,8 @@ int ocfs2_xattr_set(struct inode *inode,
                goto cleanup;
        }
 
+       /* we need to update inode's ctime field, so add credit for it. */
+       credits += OCFS2_INODE_UPDATE_CREDITS;
        ctxt.handle = ocfs2_start_trans(osb, credits);
        if (IS_ERR(ctxt.handle)) {
                ret = PTR_ERR(ctxt.handle);
@@ -3349,8 +3424,8 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
         */
        down_write(&oi->ip_alloc_sem);
 
-       ret = ocfs2_journal_access(handle, inode, xb_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_xb(handle, inode, xb_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
@@ -4188,8 +4263,8 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 
        ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
 
-       ret = ocfs2_journal_access(handle, inode, root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto leave;
@@ -4635,11 +4710,12 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
 {
        int ret, offset;
        u64 value_blk;
-       struct buffer_head *value_bh = NULL;
-       struct ocfs2_xattr_value_root *xv;
        struct ocfs2_xattr_entry *xe;
        struct ocfs2_xattr_header *xh = bucket_xh(bucket);
        size_t blocksize = inode->i_sb->s_blocksize;
+       struct ocfs2_xattr_value_buf vb = {
+               .vb_access = ocfs2_journal_access,
+       };
 
        xe = &xh->xh_entries[xe_off];
 
@@ -4653,18 +4729,11 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
        /* We don't allow ocfs2_xattr_value to be stored in different block. */
        BUG_ON(value_blk != (offset + OCFS2_XATTR_ROOT_SIZE - 1) / blocksize);
 
-       value_bh = bucket->bu_bhs[value_blk];
-       BUG_ON(!value_bh);
-
-       xv = (struct ocfs2_xattr_value_root *)
-               (value_bh->b_data + offset % blocksize);
+       vb.vb_bh = bucket->bu_bhs[value_blk];
+       BUG_ON(!vb.vb_bh);
 
-       ret = ocfs2_xattr_bucket_journal_access(ctxt->handle, bucket,
-                                               OCFS2_JOURNAL_ACCESS_WRITE);
-       if (ret) {
-               mlog_errno(ret);
-               goto out;
-       }
+       vb.vb_xv = (struct ocfs2_xattr_value_root *)
+               (vb.vb_bh->b_data + offset % blocksize);
 
        /*
         * From here on out we have to dirty the bucket.  The generic
@@ -4675,15 +4744,21 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
         */
        mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
             xe_off, (unsigned long long)bucket_blkno(bucket), len);
-       ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len, ctxt);
+       ret = ocfs2_xattr_value_truncate(inode, &vb, len, ctxt);
+       if (ret) {
+               mlog_errno(ret);
+               goto out;
+       }
+
+       ret = ocfs2_xattr_bucket_journal_access(ctxt->handle, bucket,
+                                               OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
-               goto out_dirty;
+               goto out;
        }
 
        xe->xe_value_size = cpu_to_le64(len);
 
-out_dirty:
        ocfs2_xattr_bucket_journal_dirty(ctxt->handle, bucket);
 
 out:
@@ -4779,8 +4854,8 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode,
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
@@ -4991,8 +5066,8 @@ try_again:
        xh_free_start = le16_to_cpu(xh->xh_free_start);
        header_size = sizeof(struct ocfs2_xattr_header) +
                        count * sizeof(struct ocfs2_xattr_entry);
-       max_free = OCFS2_XATTR_BUCKET_SIZE -
-               le16_to_cpu(xh->xh_name_value_len) - header_size;
+       max_free = OCFS2_XATTR_BUCKET_SIZE - header_size -
+               le16_to_cpu(xh->xh_name_value_len) - OCFS2_XATTR_HEADER_GAP;
 
        mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
                        "of %u which exceed block size\n",
@@ -5025,7 +5100,7 @@ try_again:
                        need = 0;
        }
 
-       free = xh_free_start - header_size;
+       free = xh_free_start - header_size - OCFS2_XATTR_HEADER_GAP;
        /*
         * We need to make sure the new name/value pair
         * can exist in the same block.
@@ -5058,7 +5133,8 @@ try_again:
                        }
 
                        xh_free_start = le16_to_cpu(xh->xh_free_start);
-                       free = xh_free_start - header_size;
+                       free = xh_free_start - header_size
+                               - OCFS2_XATTR_HEADER_GAP;
                        if (xh_free_start % blocksize < need)
                                free -= xh_free_start % blocksize;
 
@@ -5254,6 +5330,9 @@ int ocfs2_init_security_get(struct inode *inode,
                            struct inode *dir,
                            struct ocfs2_security_xattr_info *si)
 {
+       /* check whether ocfs2 support feature xattr */
+       if (!ocfs2_supports_xattr(OCFS2_SB(dir->i_sb)))
+               return -EOPNOTSUPP;
        return security_inode_init_security(inode, dir, &si->name, &si->value,
                                            &si->value_len);
 }