ocfs2: no need get dinode bh when zeroing extend

Since di_bh won't be used when zeroing extend, set it to NULL.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 5 deletions

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 0c2848a599c9..2a618dd2577d 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -706,7 +706,7 @@ static ssize_t ocfs2_direct_IO_write(struct kiocb *iocb,
         }
 
         if (append_write) {
-                ret = ocfs2_inode_lock(inode, &di_bh, 1);
+                ret = ocfs2_inode_lock(inode, NULL, 1);
                 if (ret < 0) {
                         mlog_errno(ret);
                         goto clean_orphan;
@@ -720,7 +720,6 @@ static ssize_t ocfs2_direct_IO_write(struct kiocb *iocb,
                 if (ret < 0) {
                         mlog_errno(ret);
                         ocfs2_inode_unlock(inode, 1);
-                        brelse(di_bh);
                         goto clean_orphan;
                 }
 
@@ -728,13 +727,10 @@ static ssize_t ocfs2_direct_IO_write(struct kiocb *iocb,
                 if (is_overwrite < 0) {
                         mlog_errno(is_overwrite);
                         ocfs2_inode_unlock(inode, 1);
-                        brelse(di_bh);
                         goto clean_orphan;
                 }
 
                 ocfs2_inode_unlock(inode, 1);
-                brelse(di_bh);
-                di_bh = NULL;
         }
 
         written = __blockdev_direct_IO(WRITE, iocb, inode, inode->i_sb->s_bdev,