[PATCH] ceph: avoid meaningless calling ceph_caps_revoking if sync_mode == WB_SYNC_ALL.

[majianpeng]

Signed-off-by: Jianpeng Ma <majianp...@gmail.com>
---
 fs/ceph/addr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 3e68ac1..25fa8b8 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -677,8 +677,8 @@ static int ceph_writepages_start(struct address_space 
*mapping,
         * integrity write (e.g., O_SYNC write or fsync()), or if our
         * cap is being revoked.
         */
-       do_sync = wbc->sync_mode == WB_SYNC_ALL;
-       if (ceph_caps_revoking(ci, CEPH_CAP_FILE_BUFFER))
+       if ((wbc->sync_mode == WB_SYNC_ALL) ||
+               ceph_caps_revoking(ci, CEPH_CAP_FILE_BUFFER))
                do_sync = 1;
        dout("writepages_start %p dosync=%d (mode=%s)\n",
             inode, do_sync,
-- 
1.8.3.rc1.44.gb387c77