1 files changed, 5 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 188cbbd5b74a..4663f7dbff1c 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1295,6 +1295,11 @@ _pagebuf_ioapply(
                 rw = (pb->pb_flags & PBF_READ) ? READ : WRITE;
         }
 
+        if (pb->pb_flags & PBF_ORDERED) {
+                ASSERT(!(pb->pb_flags & PBF_READ));
+                rw = WRITE_BARRIER;
+        }
+
         /* Special code path for reading a sub page size pagebuf in --
          * we populate up the whole page, and hence the other metadata
          * in the same page.  This optimization is only valid when the