[XFS] When issuing metadata readahead, submit bio with READA not READ.

SGI-PV: 944409
SGI-Modid: xfs-linux-melb:xfs-kern:26603a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index f13503508c46..247adced6e1b 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1156,16 +1156,16 @@ _xfs_buf_ioapply(
         total_nr_pages = bp->b_page_count;
         map_i = 0;
 
-        if (bp->b_flags & _XBF_RUN_QUEUES) {
-                bp->b_flags &= ~_XBF_RUN_QUEUES;
-                rw = (bp->b_flags & XBF_READ) ? READ_SYNC : WRITE_SYNC;
-        } else {
-                rw = (bp->b_flags & XBF_READ) ? READ : WRITE;
-        }
-
         if (bp->b_flags & XBF_ORDERED) {
                 ASSERT(!(bp->b_flags & XBF_READ));
                 rw = WRITE_BARRIER;
+        } else if (bp->b_flags & _XBF_RUN_QUEUES) {
+                ASSERT(!(bp->b_flags & XBF_READ_AHEAD));
+                bp->b_flags &= ~_XBF_RUN_QUEUES;
+                rw = (bp->b_flags & XBF_WRITE) ? WRITE_SYNC : READ_SYNC;
+        } else {
+                rw = (bp->b_flags & XBF_WRITE) ? WRITE :
+                     (bp->b_flags & XBF_READ_AHEAD) ? READA : READ;
         }
 
         /* Special code path for reading a sub page size buffer in --