ocfs2: Take ocfs2_xattr_bucket structures off of the stack.
authorJoel Becker <joel.becker@oracle.com>
Sat, 25 Oct 2008 02:13:20 +0000 (19:13 -0700)
committerMark Fasheh <mfasheh@suse.com>
Mon, 5 Jan 2009 16:34:17 +0000 (08:34 -0800)
The ocfs2_xattr_bucket structure is a nice abstraction, but it is a bit
large to have on the stack.  Just like ocfs2_path, let's allocate it
with a ocfs2_xattr_bucket_new() function.

We can now store the inode on the bucket, cleaning up all the other
bucket functions.  While we're here, we catch another place or two that
wasn't using ocfs2_read_xattr_bucket().

Updates:
- No longer allocating xis.bucket, as it will never be used.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
fs/ocfs2/xattr.c

index 71d9e7bdd30a0d1ea3d48d6eae439893b00e012c..766494ed6e11e722d5420badf2b7a4d801848f1c 100644 (file)
@@ -61,7 +61,14 @@ struct ocfs2_xattr_def_value_root {
 };
 
 struct ocfs2_xattr_bucket {
+       /* The inode these xattrs are associated with */
+       struct inode *bu_inode;
+
+       /* The actual buffers that make up the bucket */
        struct buffer_head *bu_bhs[OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET];
+
+       /* How many blocks make up one bucket for this filesystem */
+       int bu_blocks;
 };
 
 #define OCFS2_XATTR_ROOT_SIZE  (sizeof(struct ocfs2_xattr_def_value_root))
@@ -97,7 +104,7 @@ struct ocfs2_xattr_search {
         */
        struct buffer_head *xattr_bh;
        struct ocfs2_xattr_header *header;
-       struct ocfs2_xattr_bucket bucket;
+       struct ocfs2_xattr_bucket *bucket;
        void *base;
        void *end;
        struct ocfs2_xattr_entry *here;
@@ -157,69 +164,91 @@ static inline u16 ocfs2_xattr_max_xe_in_bucket(struct super_block *sb)
 #define bucket_block(_b, _n) ((_b)->bu_bhs[(_n)]->b_data)
 #define bucket_xh(_b) ((struct ocfs2_xattr_header *)bucket_block((_b), 0))
 
-static void ocfs2_xattr_bucket_relse(struct inode *inode,
-                                    struct ocfs2_xattr_bucket *bucket)
+static struct ocfs2_xattr_bucket *ocfs2_xattr_bucket_new(struct inode *inode)
 {
-       int i, blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+       struct ocfs2_xattr_bucket *bucket;
+       int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
 
-       for (i = 0; i < blks; i++) {
+       BUG_ON(blks > OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET);
+
+       bucket = kzalloc(sizeof(struct ocfs2_xattr_bucket), GFP_NOFS);
+       if (bucket) {
+               bucket->bu_inode = inode;
+               bucket->bu_blocks = blks;
+       }
+
+       return bucket;
+}
+
+static void ocfs2_xattr_bucket_relse(struct ocfs2_xattr_bucket *bucket)
+{
+       int i;
+
+       for (i = 0; i < bucket->bu_blocks; i++) {
                brelse(bucket->bu_bhs[i]);
                bucket->bu_bhs[i] = NULL;
        }
 }
 
+static void ocfs2_xattr_bucket_free(struct ocfs2_xattr_bucket *bucket)
+{
+       if (bucket) {
+               ocfs2_xattr_bucket_relse(bucket);
+               bucket->bu_inode = NULL;
+               kfree(bucket);
+       }
+}
+
 /*
  * A bucket that has never been written to disk doesn't need to be
  * read.  We just need the buffer_heads.  Don't call this for
  * buckets that are already on disk.  ocfs2_read_xattr_bucket() initializes
  * them fully.
  */
-static int ocfs2_init_xattr_bucket(struct inode *inode,
-                                  struct ocfs2_xattr_bucket *bucket,
+static int ocfs2_init_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
                                   u64 xb_blkno)
 {
        int i, rc = 0;
-       int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
 
-       for (i = 0; i < blks; i++) {
-               bucket->bu_bhs[i] = sb_getblk(inode->i_sb, xb_blkno + i);
+       for (i = 0; i < bucket->bu_blocks; i++) {
+               bucket->bu_bhs[i] = sb_getblk(bucket->bu_inode->i_sb,
+                                             xb_blkno + i);
                if (!bucket->bu_bhs[i]) {
                        rc = -EIO;
                        mlog_errno(rc);
                        break;
                }
 
-               ocfs2_set_new_buffer_uptodate(inode, bucket->bu_bhs[i]);
+               ocfs2_set_new_buffer_uptodate(bucket->bu_inode,
+                                             bucket->bu_bhs[i]);
        }
 
        if (rc)
-               ocfs2_xattr_bucket_relse(inode, bucket);
+               ocfs2_xattr_bucket_relse(bucket);
        return rc;
 }
 
 /* Read the xattr bucket at xb_blkno */
-static int ocfs2_read_xattr_bucket(struct inode *inode,
-                                  struct ocfs2_xattr_bucket *bucket,
+static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
                                   u64 xb_blkno)
 {
-       int rc, blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+       int rc;
 
-       rc = ocfs2_read_blocks(inode, xb_blkno, blks, bucket->bu_bhs, 0);
+       rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
+                              bucket->bu_blocks, bucket->bu_bhs, 0);
        if (rc)
-               ocfs2_xattr_bucket_relse(inode, bucket);
+               ocfs2_xattr_bucket_relse(bucket);
        return rc;
 }
 
 static int ocfs2_xattr_bucket_journal_access(handle_t *handle,
-                                            struct inode *inode,
                                             struct ocfs2_xattr_bucket *bucket,
                                             int type)
 {
        int i, rc = 0;
-       int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
 
-       for (i = 0; i < blks; i++) {
-               rc = ocfs2_journal_access(handle, inode,
+       for (i = 0; i < bucket->bu_blocks; i++) {
+               rc = ocfs2_journal_access(handle, bucket->bu_inode,
                                          bucket->bu_bhs[i], type);
                if (rc) {
                        mlog_errno(rc);
@@ -231,24 +260,24 @@ static int ocfs2_xattr_bucket_journal_access(handle_t *handle,
 }
 
 static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
-                                            struct inode *inode,
                                             struct ocfs2_xattr_bucket *bucket)
 {
-       int i, blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+       int i;
 
-       for (i = 0; i < blks; i++)
+       for (i = 0; i < bucket->bu_blocks; i++)
                ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
 }
 
-static void ocfs2_xattr_bucket_copy_data(struct inode *inode,
-                                        struct ocfs2_xattr_bucket *dest,
+static void ocfs2_xattr_bucket_copy_data(struct ocfs2_xattr_bucket *dest,
                                         struct ocfs2_xattr_bucket *src)
 {
        int i;
-       int blocksize = inode->i_sb->s_blocksize;
-       int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+       int blocksize = src->bu_inode->i_sb->s_blocksize;
+
+       BUG_ON(dest->bu_blocks != src->bu_blocks);
+       BUG_ON(dest->bu_inode != src->bu_inode);
 
-       for (i = 0; i < blks; i++) {
+       for (i = 0; i < src->bu_blocks; i++) {
                memcpy(bucket_block(dest, i), bucket_block(src, i),
                       blocksize);
        }
@@ -869,7 +898,12 @@ static int ocfs2_xattr_block_get(struct inode *inode,
        size_t size;
        int ret = -ENODATA, name_offset, name_len, block_off, i;
 
-       memset(&xs->bucket, 0, sizeof(xs->bucket));
+       xs->bucket = ocfs2_xattr_bucket_new(inode);
+       if (!xs->bucket) {
+               ret = -ENOMEM;
+               mlog_errno(ret);
+               goto cleanup;
+       }
 
        ret = ocfs2_xattr_block_find(inode, name_index, name, xs);
        if (ret) {
@@ -895,11 +929,11 @@ static int ocfs2_xattr_block_get(struct inode *inode,
 
                if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
                        ret = ocfs2_xattr_bucket_get_name_value(inode,
-                                                               bucket_xh(&xs->bucket),
+                                                               bucket_xh(xs->bucket),
                                                                i,
                                                                &block_off,
                                                                &name_offset);
-                       xs->base = bucket_block(&xs->bucket, block_off);
+                       xs->base = bucket_block(xs->bucket, block_off);
                }
                if (ocfs2_xattr_is_local(xs->here)) {
                        memcpy(buffer, (void *)xs->base +
@@ -917,8 +951,7 @@ static int ocfs2_xattr_block_get(struct inode *inode,
        }
        ret = size;
 cleanup:
-       ocfs2_xattr_bucket_relse(inode, &xs->bucket);
-       memset(&xs->bucket, 0, sizeof(xs->bucket));
+       ocfs2_xattr_bucket_free(xs->bucket);
 
        brelse(xs->xattr_bh);
        xs->xattr_bh = NULL;
@@ -2047,10 +2080,20 @@ int ocfs2_xattr_set(struct inode *inode,
        if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
                return -EOPNOTSUPP;
 
+       /*
+        * Only xbs will be used on indexed trees.  xis doesn't need a
+        * bucket.
+        */
+       xbs.bucket = ocfs2_xattr_bucket_new(inode);
+       if (!xbs.bucket) {
+               mlog_errno(-ENOMEM);
+               return -ENOMEM;
+       }
+
        ret = ocfs2_inode_lock(inode, &di_bh, 1);
        if (ret < 0) {
                mlog_errno(ret);
-               return ret;
+               goto cleanup_nolock;
        }
        xis.inode_bh = xbs.inode_bh = di_bh;
        di = (struct ocfs2_dinode *)di_bh->b_data;
@@ -2127,9 +2170,10 @@ int ocfs2_xattr_set(struct inode *inode,
 cleanup:
        up_write(&OCFS2_I(inode)->ip_xattr_sem);
        ocfs2_inode_unlock(inode, 1);
+cleanup_nolock:
        brelse(di_bh);
        brelse(xbs.xattr_bh);
-       ocfs2_xattr_bucket_relse(inode, &xbs.bucket);
+       ocfs2_xattr_bucket_free(xbs.bucket);
 
        return ret;
 }
@@ -2373,11 +2417,11 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
                lower_bh = bh;
                bh = NULL;
        }
-       xs->bucket.bu_bhs[0] = lower_bh;
+       xs->bucket->bu_bhs[0] = lower_bh;
        lower_bh = NULL;
 
-       xs->header = bucket_xh(&xs->bucket);
-       xs->base = bucket_block(&xs->bucket, 0);
+       xs->header = bucket_xh(xs->bucket);
+       xs->base = bucket_block(xs->bucket, 0);
        xs->end = xs->base + inode->i_sb->s_blocksize;
 
        if (found) {
@@ -2385,8 +2429,8 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
                 * If we have found the xattr enty, read all the blocks in
                 * this bucket.
                 */
-               ret = ocfs2_read_blocks(inode, bucket_blkno(&xs->bucket) + 1,
-                                       blk_per_bucket - 1, &xs->bucket.bu_bhs[1],
+               ret = ocfs2_read_blocks(inode, bucket_blkno(xs->bucket) + 1,
+                                       blk_per_bucket - 1, &xs->bucket->bu_bhs[1],
                                        0);
                if (ret) {
                        mlog_errno(ret);
@@ -2395,7 +2439,7 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
 
                xs->here = &xs->header->xh_entries[index];
                mlog(0, "find xattr %s in bucket %llu, entry = %u\n", name,
-                    (unsigned long long)bucket_blkno(&xs->bucket), index);
+                    (unsigned long long)bucket_blkno(xs->bucket), index);
        } else
                ret = -ENODATA;
 
@@ -2453,22 +2497,24 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
                                       void *para)
 {
        int i, ret = 0;
-       int blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
        u32 bpc = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb));
        u32 num_buckets = clusters * bpc;
-       struct ocfs2_xattr_bucket bucket;
+       struct ocfs2_xattr_bucket *bucket;
 
-       memset(&bucket, 0, sizeof(bucket));
+       bucket = ocfs2_xattr_bucket_new(inode);
+       if (!bucket) {
+               mlog_errno(-ENOMEM);
+               return -ENOMEM;
+       }
 
        mlog(0, "iterating xattr buckets in %u clusters starting from %llu\n",
             clusters, (unsigned long long)blkno);
 
-       for (i = 0; i < num_buckets; i++, blkno += blk_per_bucket) {
-               ret = ocfs2_read_blocks(inode, blkno, blk_per_bucket,
-                                       bucket.bu_bhs, 0);
+       for (i = 0; i < num_buckets; i++, blkno += bucket->bu_blocks) {
+               ret = ocfs2_read_xattr_bucket(bucket, blkno);
                if (ret) {
                        mlog_errno(ret);
-                       goto out;
+                       break;
                }
 
                /*
@@ -2476,26 +2522,24 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
                 * in the 1st bucket.
                 */
                if (i == 0)
-                       num_buckets = le16_to_cpu(bucket_xh(&bucket)->xh_num_buckets);
+                       num_buckets = le16_to_cpu(bucket_xh(bucket)->xh_num_buckets);
 
                mlog(0, "iterating xattr bucket %llu, first hash %u\n",
                     (unsigned long long)blkno,
-                    le32_to_cpu(bucket_xh(&bucket)->xh_entries[0].xe_name_hash));
+                    le32_to_cpu(bucket_xh(bucket)->xh_entries[0].xe_name_hash));
                if (func) {
-                       ret = func(inode, &bucket, para);
-                       if (ret) {
+                       ret = func(inode, bucket, para);
+                       if (ret)
                                mlog_errno(ret);
-                               break;
-                       }
+                       /* Fall through to bucket_relse() */
                }
 
-               ocfs2_xattr_bucket_relse(inode, &bucket);
-               memset(&bucket, 0, sizeof(bucket));
+               ocfs2_xattr_bucket_relse(bucket);
+               if (ret)
+                       break;
        }
 
-out:
-       ocfs2_xattr_bucket_relse(inode, &bucket);
-
+       ocfs2_xattr_bucket_free(bucket);
        return ret;
 }
 
@@ -2718,9 +2762,9 @@ static int ocfs2_xattr_update_xattr_search(struct inode *inode,
        int i, blocksize = inode->i_sb->s_blocksize;
        u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
 
-       xs->bucket.bu_bhs[0] = new_bh;
+       xs->bucket->bu_bhs[0] = new_bh;
        get_bh(new_bh);
-       xs->header = bucket_xh(&xs->bucket);
+       xs->header = bucket_xh(xs->bucket);
 
        xs->base = new_bh->b_data;
        xs->end = xs->base + inode->i_sb->s_blocksize;
@@ -2728,8 +2772,8 @@ static int ocfs2_xattr_update_xattr_search(struct inode *inode,
        if (!xs->not_found) {
                if (OCFS2_XATTR_BUCKET_SIZE != blocksize) {
                        ret = ocfs2_read_blocks(inode,
-                                       bucket_blkno(&xs->bucket) + 1,
-                                       blk_per_bucket - 1, &xs->bucket.bu_bhs[1],
+                                       bucket_blkno(xs->bucket) + 1,
+                                       blk_per_bucket - 1, &xs->bucket->bu_bhs[1],
                                        0);
                        if (ret) {
                                mlog_errno(ret);
@@ -3244,8 +3288,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
 {
        int ret, i;
        int count, start, len, name_value_len = 0, xe_len, name_offset = 0;
-       u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
-       struct ocfs2_xattr_bucket s_bucket, t_bucket;
+       struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
        struct ocfs2_xattr_header *xh;
        struct ocfs2_xattr_entry *xe;
        int blocksize = inode->i_sb->s_blocksize;
@@ -3253,16 +3296,21 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
        mlog(0, "move some of xattrs from bucket %llu to %llu\n",
             (unsigned long long)blk, (unsigned long long)new_blk);
 
-       memset(&s_bucket, 0, sizeof(struct ocfs2_xattr_bucket));
-       memset(&t_bucket, 0, sizeof(struct ocfs2_xattr_bucket));
+       s_bucket = ocfs2_xattr_bucket_new(inode);
+       t_bucket = ocfs2_xattr_bucket_new(inode);
+       if (!s_bucket || !t_bucket) {
+               ret = -ENOMEM;
+               mlog_errno(ret);
+               goto out;
+       }
 
-       ret = ocfs2_read_xattr_bucket(inode, &s_bucket, blk);
+       ret = ocfs2_read_xattr_bucket(s_bucket, blk);
        if (ret) {
                mlog_errno(ret);
                goto out;
        }
 
-       ret = ocfs2_xattr_bucket_journal_access(handle, inode, &s_bucket,
+       ret = ocfs2_xattr_bucket_journal_access(handle, s_bucket,
                                                OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
@@ -3273,13 +3321,13 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
         * Even if !new_bucket_head, we're overwriting t_bucket.  Thus,
         * there's no need to read it.
         */
-       ret = ocfs2_init_xattr_bucket(inode, &t_bucket, new_blk);
+       ret = ocfs2_init_xattr_bucket(t_bucket, new_blk);
        if (ret) {
                mlog_errno(ret);
                goto out;
        }
 
-       ret = ocfs2_xattr_bucket_journal_access(handle, inode, &t_bucket,
+       ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
                                                new_bucket_head ?
                                                OCFS2_JOURNAL_ACCESS_CREATE :
                                                OCFS2_JOURNAL_ACCESS_WRITE);
@@ -3288,7 +3336,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
                goto out;
        }
 
-       xh = bucket_xh(&s_bucket);
+       xh = bucket_xh(s_bucket);
        count = le16_to_cpu(xh->xh_count);
        start = ocfs2_xattr_find_divide_pos(xh);
 
@@ -3300,10 +3348,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
                 * The hash value is set as one larger than
                 * that of the last entry in the previous bucket.
                 */
-               for (i = 0; i < blk_per_bucket; i++)
-                       memset(bucket_block(&t_bucket, i), 0, blocksize);
+               for (i = 0; i < t_bucket->bu_blocks; i++)
+                       memset(bucket_block(t_bucket, i), 0, blocksize);
 
-               xh = bucket_xh(&t_bucket);
+               xh = bucket_xh(t_bucket);
                xh->xh_free_start = cpu_to_le16(blocksize);
                xh->xh_entries[0].xe_name_hash = xe->xe_name_hash;
                le32_add_cpu(&xh->xh_entries[0].xe_name_hash, 1);
@@ -3312,10 +3360,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
        }
 
        /* copy the whole bucket to the new first. */
-       ocfs2_xattr_bucket_copy_data(inode, &t_bucket, &s_bucket);
+       ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
 
        /* update the new bucket. */
-       xh = bucket_xh(&t_bucket);
+       xh = bucket_xh(t_bucket);
 
        /*
         * Calculate the total name/value len and xh_free_start for
@@ -3379,7 +3427,7 @@ set_num_buckets:
        else
                xh->xh_num_buckets = 0;
 
-       ocfs2_xattr_bucket_journal_dirty(handle, inode, &t_bucket);
+       ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
 
        /* store the first_hash of the new bucket. */
        if (first_hash)
@@ -3393,18 +3441,18 @@ set_num_buckets:
        if (start == count)
                goto out;
 
-       xh = bucket_xh(&s_bucket);
+       xh = bucket_xh(s_bucket);
        memset(&xh->xh_entries[start], 0,
               sizeof(struct ocfs2_xattr_entry) * (count - start));
        xh->xh_count = cpu_to_le16(start);
        xh->xh_free_start = cpu_to_le16(name_offset);
        xh->xh_name_value_len = cpu_to_le16(name_value_len);
 
-       ocfs2_xattr_bucket_journal_dirty(handle, inode, &s_bucket);
+       ocfs2_xattr_bucket_journal_dirty(handle, s_bucket);
 
 out:
-       ocfs2_xattr_bucket_relse(inode, &s_bucket);
-       ocfs2_xattr_bucket_relse(inode, &t_bucket);
+       ocfs2_xattr_bucket_free(s_bucket);
+       ocfs2_xattr_bucket_free(t_bucket);
 
        return ret;
 }
@@ -3422,7 +3470,7 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
                                 int t_is_new)
 {
        int ret;
-       struct ocfs2_xattr_bucket s_bucket, t_bucket;
+       struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
 
        BUG_ON(s_blkno == t_blkno);
 
@@ -3430,10 +3478,15 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
             (unsigned long long)s_blkno, (unsigned long long)t_blkno,
             t_is_new);
 
-       memset(&s_bucket, 0, sizeof(struct ocfs2_xattr_bucket));
-       memset(&t_bucket, 0, sizeof(struct ocfs2_xattr_bucket));
-
-       ret = ocfs2_read_xattr_bucket(inode, &s_bucket, s_blkno);
+       s_bucket = ocfs2_xattr_bucket_new(inode);
+       t_bucket = ocfs2_xattr_bucket_new(inode);
+       if (!s_bucket || !t_bucket) {
+               ret = -ENOMEM;
+               mlog_errno(ret);
+               goto out;
+       }
+  
+       ret = ocfs2_read_xattr_bucket(s_bucket, s_blkno);
        if (ret)
                goto out;
 
@@ -3441,23 +3494,23 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
         * Even if !t_is_new, we're overwriting t_bucket.  Thus,
         * there's no need to read it.
         */
-       ret = ocfs2_init_xattr_bucket(inode, &t_bucket, t_blkno);
+       ret = ocfs2_init_xattr_bucket(t_bucket, t_blkno);
        if (ret)
                goto out;
 
-       ret = ocfs2_xattr_bucket_journal_access(handle, inode, &t_bucket,
+       ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
                                                t_is_new ?
                                                OCFS2_JOURNAL_ACCESS_CREATE :
                                                OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret)
                goto out;
 
-       ocfs2_xattr_bucket_copy_data(inode, &t_bucket, &s_bucket);
-       ocfs2_xattr_bucket_journal_dirty(handle, inode, &t_bucket);
+       ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
+       ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
 
 out:
-       ocfs2_xattr_bucket_relse(inode, &s_bucket);
-       ocfs2_xattr_bucket_relse(inode, &t_bucket);
+       ocfs2_xattr_bucket_free(t_bucket);
+       ocfs2_xattr_bucket_free(s_bucket);
 
        return ret;
 }
@@ -4009,7 +4062,7 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
                                xe->xe_value_size = 0;
 
                        val = ocfs2_xattr_bucket_get_val(inode,
-                                                        &xs->bucket, offs);
+                                                        xs->bucket, offs);
                        memset(val + OCFS2_XATTR_SIZE(name_len), 0,
                               size - OCFS2_XATTR_SIZE(name_len));
                        if (OCFS2_XATTR_SIZE(xi->value_len) > 0)
@@ -4087,8 +4140,7 @@ set_new_name_value:
                xh->xh_free_start = cpu_to_le16(offs);
        }
 
-       val = ocfs2_xattr_bucket_get_val(inode,
-                                        &xs->bucket, offs - size);
+       val = ocfs2_xattr_bucket_get_val(inode, xs->bucket, offs - size);
        xe->xe_name_offset = cpu_to_le16(offs - size);
 
        memset(val, 0, size);
@@ -4122,12 +4174,12 @@ static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
 
        mlog(0, "Set xattr entry len = %lu index = %d in bucket %llu\n",
             (unsigned long)xi->value_len, xi->name_index,
-            (unsigned long long)bucket_blkno(&xs->bucket));
+            (unsigned long long)bucket_blkno(xs->bucket));
 
-       if (!xs->bucket.bu_bhs[1]) {
+       if (!xs->bucket->bu_bhs[1]) {
                ret = ocfs2_read_blocks(inode,
-                                       bucket_blkno(&xs->bucket) + 1,
-                                       blk_per_bucket - 1, &xs->bucket.bu_bhs[1],
+                                       bucket_blkno(xs->bucket) + 1,
+                                       blk_per_bucket - 1, &xs->bucket->bu_bhs[1],
                                        0);
                if (ret) {
                        mlog_errno(ret);
@@ -4143,7 +4195,7 @@ static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
                goto out;
        }
 
-       ret = ocfs2_xattr_bucket_journal_access(handle, inode, &xs->bucket,
+       ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
                                                OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
@@ -4151,7 +4203,7 @@ static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
        }
 
        ocfs2_xattr_set_entry_normal(inode, xi, xs, name_hash, local);
-       ocfs2_xattr_bucket_journal_dirty(handle, inode, &xs->bucket);
+       ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
 
 out:
        ocfs2_commit_trans(osb, handle);
@@ -4264,10 +4316,10 @@ static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
        struct ocfs2_xattr_entry *xe = xs->here;
        struct ocfs2_xattr_header *xh = (struct ocfs2_xattr_header *)xs->base;
 
-       BUG_ON(!xs->bucket.bu_bhs[0] || !xe || ocfs2_xattr_is_local(xe));
+       BUG_ON(!xs->bucket->bu_bhs[0] || !xe || ocfs2_xattr_is_local(xe));
 
        offset = xe - xh->xh_entries;
-       ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket.bu_bhs[0],
+       ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket->bu_bhs[0],
                                                offset, len);
        if (ret)
                mlog_errno(ret);
@@ -4387,7 +4439,7 @@ static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
                                         struct ocfs2_xattr_search *xs)
 {
        handle_t *handle = NULL;
-       struct ocfs2_xattr_header *xh = bucket_xh(&xs->bucket);
+       struct ocfs2_xattr_header *xh = bucket_xh(xs->bucket);
        struct ocfs2_xattr_entry *last = &xh->xh_entries[
                                                le16_to_cpu(xh->xh_count) - 1];
        int ret = 0;
@@ -4400,7 +4452,7 @@ static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
                return;
        }
 
-       ret = ocfs2_xattr_bucket_journal_access(handle, inode, &xs->bucket,
+       ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
                                                OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
@@ -4413,7 +4465,7 @@ static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
        memset(last, 0, sizeof(struct ocfs2_xattr_entry));
        le16_add_cpu(&xh->xh_count, -1);
 
-       ocfs2_xattr_bucket_journal_dirty(handle, inode, &xs->bucket);
+       ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
 
 out_commit:
        ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
@@ -4565,7 +4617,7 @@ try_again:
 
        mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
                        "of %u which exceed block size\n",
-                       (unsigned long long)bucket_blkno(&xs->bucket),
+                       (unsigned long long)bucket_blkno(xs->bucket),
                        header_size);
 
        if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE)
@@ -4605,7 +4657,7 @@ try_again:
        mlog(0, "xs->not_found = %d, in xattr bucket %llu: free = %d, "
             "need = %d, max_free = %d, xh_free_start = %u, xh_name_value_len ="
             " %u\n", xs->not_found,
-            (unsigned long long)bucket_blkno(&xs->bucket),
+            (unsigned long long)bucket_blkno(xs->bucket),
             free, need, max_free, le16_to_cpu(xh->xh_free_start),
             le16_to_cpu(xh->xh_name_value_len));
 
@@ -4617,7 +4669,7 @@ try_again:
                         * name/value will be moved, the xe shouldn't be changed
                         * in xs.
                         */
-                       ret = ocfs2_defrag_xattr_bucket(inode, &xs->bucket);
+                       ret = ocfs2_defrag_xattr_bucket(inode, xs->bucket);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
@@ -4649,7 +4701,7 @@ try_again:
                 * add a new bucket for the insert.
                 */
                ret = ocfs2_check_xattr_bucket_collision(inode,
-                                                        &xs->bucket,
+                                                        xs->bucket,
                                                         xi->name);
                if (ret) {
                        mlog_errno(ret);
@@ -4658,14 +4710,13 @@ try_again:
 
                ret = ocfs2_add_new_xattr_bucket(inode,
                                                 xs->xattr_bh,
-                                                xs->bucket.bu_bhs[0]);
+                                                xs->bucket->bu_bhs[0]);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                }
 
-               ocfs2_xattr_bucket_relse(inode, &xs->bucket);
-               memset(&xs->bucket, 0, sizeof(xs->bucket));
+               ocfs2_xattr_bucket_relse(xs->bucket);
 
                ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
                                                   xi->name_index,