ocfs2: Move buckets up into ocfs2_add_new_xattr_cluster().

Lift the buckets from ocfs2_adjust_xattr_cross_cluster() up into
ocfs2_add_new_xattr_cluster().  Now ocfs2_adjust_xattr_cross_cluster()
doesn't deal with buffer_heads.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 2f16f50..4b24704 100644 (file)
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -4080,44 +4080,19 @@ static int ocfs2_divide_xattr_cluster(struct inode *inode,
  */
 static int ocfs2_adjust_xattr_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_blk,
-                                           u64 prev_blk,
                                            u32 prev_clusters,
                                            u32 *v_start,
                                            int *extend)
 {
        int ret;
-       struct ocfs2_xattr_bucket *first, *target;
 
        mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n",
-            (unsigned long long)prev_blk, prev_clusters,
+            (unsigned long long)bucket_blkno(first), prev_clusters,
             (unsigned long long)new_blk);
 
-       /* The first bucket of the original extent */
-       first = ocfs2_xattr_bucket_new(inode);
-       /* The target bucket for insert */
-       target = ocfs2_xattr_bucket_new(inode);
-       if (!first || !target) {
-               ret = -ENOMEM;
-               mlog_errno(ret);
-               goto out;
-       }
-
-       BUG_ON(prev_blk != (*first_bh)->b_blocknr);
-       ret = ocfs2_read_xattr_bucket(first, prev_blk);
-       if (ret) {
-               mlog_errno(ret);
-               goto out;
-       }
-
-       ret = ocfs2_read_xattr_bucket(target, (*header_bh)->b_blocknr);
-       if (ret) {
-               mlog_errno(ret);
-               goto out;
-       }
-
        if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
                ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
                                                          handle,
@@ -4125,46 +4100,33 @@ static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
                                                          new_blk,
                                                          prev_clusters,
                                                          v_start);
-               if (ret) {
+               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) *
                         ocfs2_clusters_to_blocks(inode->i_sb, 1));
 
-               if (prev_clusters > 1 && bucket_blkno(target) != last_blk)
+               if (prev_clusters > 1 && bucket_blkno(target) != last_blk) {
                        ret = ocfs2_mv_xattr_buckets(inode, handle,
                                                     bucket_blkno(first),
                                                     last_blk, new_blk, 0,
                                                     v_start);
-               else {
+                       if (ret)
+                               mlog_errno(ret);
+               } else {
                        ret = ocfs2_divide_xattr_cluster(inode, handle,
                                                         last_blk, new_blk,
                                                         v_start);
+                       if (ret)
+                               mlog_errno(ret);
 
                        if ((bucket_blkno(target) == last_blk) && extend)
                                *extend = 0;
                }
        }
 
-out:
-       ocfs2_xattr_bucket_free(first);
-       ocfs2_xattr_bucket_free(target);
-
        return ret;
 }
 
@@ -4202,6 +4164,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
        handle_t *handle = ctxt->handle;
        struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
        struct ocfs2_extent_tree et;
+       struct ocfs2_xattr_bucket *first, *target;
 
        mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, "
             "previous xattr blkno = %llu\n",
@@ -4210,6 +4173,29 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
 
        ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
 
+       /* The first bucket of the original extent */
+       first = ocfs2_xattr_bucket_new(inode);
+       /* The target bucket for insert */
+       target = ocfs2_xattr_bucket_new(inode);
+       if (!first || !target) {
+               ret = -ENOMEM;
+               mlog_errno(ret);
+               goto leave;
+       }
+
+       BUG_ON(prev_blkno != (*first_bh)->b_blocknr);
+       ret = ocfs2_read_xattr_bucket(first, prev_blkno);
+       if (ret) {
+               mlog_errno(ret);
+               goto leave;
+       }
+
+       ret = ocfs2_read_xattr_bucket(target, (*header_bh)->b_blocknr);
+       if (ret) {
+               mlog_errno(ret);
+               goto leave;
+       }
+
        ret = ocfs2_journal_access(handle, inode, root_bh,
                                   OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
@@ -4250,10 +4236,9 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
        } else {
                ret = ocfs2_adjust_xattr_cross_cluster(inode,
                                                       handle,
-                                                      first_bh,
-                                                      header_bh,
+                                                      first,
+                                                      target,
                                                       block,
-                                                      prev_blkno,
                                                       prev_clusters,
                                                       &v_start,
                                                       extend);
@@ -4261,6 +4246,17 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
                        mlog_errno(ret);
                        goto leave;
                }
+
+               /* Did first+target get moved? */
+               if (prev_blkno != 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);
+               }
        }
 
        mlog(0, "Insert %u clusters at block %llu for xattr at %u\n",
@@ -4277,6 +4273,8 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
                mlog_errno(ret);
 
 leave:
+       ocfs2_xattr_bucket_free(first);
+       ocfs2_xattr_bucket_free(target);
        return ret;
 }