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>

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 0c2848a..2a618dd 100644 (file)
--- 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,