ocfs2: Modify ocfs2_num_free_extents for future xattr usage.

ocfs2_num_free_extents() is used to find the number of free extent records
in an inode btree. Hence, it takes an "ocfs2_dinode" parameter. We want to
use this for extended attribute trees in the future, so genericize the
interface the take a buffer head. A future patch will allow that buffer_head
to contain any structure rooting an ocfs2 btree.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 9cce563fd627..fda09c32a5f2 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1479,7 +1479,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
         spin_lock(&OCFS2_I(dir)->ip_lock);
         if (dir_i_size == ocfs2_clusters_to_bytes(sb, OCFS2_I(dir)->ip_clusters)) {
                 spin_unlock(&OCFS2_I(dir)->ip_lock);
-                num_free_extents = ocfs2_num_free_extents(osb, dir, fe);
+                num_free_extents = ocfs2_num_free_extents(osb, dir,
+                                                          parent_fe_bh);
                 if (num_free_extents < 0) {
                         status = num_free_extents;
                         mlog_errno(status);