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authorJoel Becker <joel.becker@oracle.com>2008-11-26 14:25:21 -0800
committerMark Fasheh <mfasheh@suse.com>2009-01-05 08:40:30 -0800
commit41cb814866110b6e35dad7569ecf96163c3bb824 (patch)
treedddaf0e1f5ecc558b6f8c71933b1932aaf02e4d3 /fs
parent92cf3adf48097b7561a3c83f800ed3b2b25b18d4 (diff)
downloadblackbird-op-linux-41cb814866110b6e35dad7569ecf96163c3bb824.tar.gz
blackbird-op-linux-41cb814866110b6e35dad7569ecf96163c3bb824.zip
ocfs2: Pass buckets into ocfs2_mv_xattr_bucket_cross_cluster().
Now that ocfs2_adjust_xattr_cross_cluster() has buckets, it can pass them into ocfs2_mv_xattr_bucket_cross_cluster(). It no longer has to care about buffer_heads. The manipulation of first_bh and header_bh moves up to ocfs2_adjust_xattr_cross_cluster(). Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/ocfs2/xattr.c84
1 files changed, 37 insertions, 47 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 975ba3653feb..2f16f50ebcba 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -3548,42 +3548,28 @@ out:
*/
static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
handle_t *handle,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u64 new_blkno,
- u64 prev_blkno,
u32 num_clusters,
u32 *first_hash)
{
int ret;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
+ struct super_block *sb = inode->i_sb;
+ int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(sb);
+ int num_buckets = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(sb));
int to_move = num_buckets / 2;
u64 src_blkno;
- u64 last_cluster_blkno = prev_blkno +
- ((num_clusters - 1) * ocfs2_clusters_to_blocks(inode->i_sb, 1));
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)((*first_bh)->b_data);
- struct ocfs2_xattr_bucket *new_target, *new_first;
+ u64 last_cluster_blkno = bucket_blkno(first) +
+ ((num_clusters - 1) * ocfs2_clusters_to_blocks(sb, 1));
- BUG_ON(le16_to_cpu(xh->xh_num_buckets) < num_buckets);
- BUG_ON(OCFS2_XATTR_BUCKET_SIZE == osb->s_clustersize);
+ BUG_ON(le16_to_cpu(bucket_xh(first)->xh_num_buckets) < num_buckets);
+ BUG_ON(OCFS2_XATTR_BUCKET_SIZE == OCFS2_SB(sb)->s_clustersize);
mlog(0, "move half of xattrs in cluster %llu to %llu\n",
(unsigned long long)last_cluster_blkno, (unsigned long long)new_blkno);
- /* The first bucket of the new extent */
- new_first = ocfs2_xattr_bucket_new(inode);
- /* The target bucket if it was moved to the new extent */
- new_target = ocfs2_xattr_bucket_new(inode);
- if (!new_target || !new_first) {
- ret = -ENOMEM;
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_mv_xattr_buckets(inode, handle, prev_blkno,
+ ret = ocfs2_mv_xattr_buckets(inode, handle, bucket_blkno(first),
last_cluster_blkno, new_blkno,
to_move, first_hash);
if (ret) {
@@ -3596,41 +3582,32 @@ static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
/*
* If the target bucket was part of the moved buckets, we need to
- * update first_bh and header_bh.
+ * update first and target.
*/
- if ((*header_bh)->b_blocknr >= src_blkno) {
+ if (bucket_blkno(target) >= src_blkno) {
/* Find the block for the new target bucket */
src_blkno = new_blkno +
- ((*header_bh)->b_blocknr - src_blkno);
+ (bucket_blkno(target) - src_blkno);
+
+ ocfs2_xattr_bucket_relse(first);
+ ocfs2_xattr_bucket_relse(target);
/*
* These shouldn't fail - the buffers are in the
* journal from ocfs2_cp_xattr_bucket().
*/
- ret = ocfs2_read_xattr_bucket(new_first, new_blkno);
+ ret = ocfs2_read_xattr_bucket(first, new_blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_read_xattr_bucket(new_target, src_blkno);
- if (ret) {
+ ret = ocfs2_read_xattr_bucket(target, src_blkno);
+ if (ret)
mlog_errno(ret);
- goto out;
- }
- brelse(*first_bh);
- *first_bh = new_first->bu_bhs[0];
- get_bh(*first_bh);
-
- brelse(*header_bh);
- *header_bh = new_target->bu_bhs[0];
- get_bh(*header_bh);
}
out:
- ocfs2_xattr_bucket_free(new_first);
- ocfs2_xattr_bucket_free(new_target);
-
return ret;
}
@@ -4141,16 +4118,29 @@ static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
goto out;
}
- if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1)
+ if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
handle,
- first_bh,
- header_bh,
+ first, target,
new_blk,
- bucket_blkno(first),
prev_clusters,
v_start);
- else {
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ /* Did first+target get moved? */
+ if (prev_blk != bucket_blkno(first)) {
+ brelse(*first_bh);
+ *first_bh = first->bu_bhs[0];
+ get_bh(*first_bh);
+
+ brelse(*header_bh);
+ *header_bh = target->bu_bhs[0];
+ get_bh(*header_bh);
+ }
+ } else {
/* The start of the last cluster in the first extent */
u64 last_blk = bucket_blkno(first) +
((prev_clusters - 1) *
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