ocfs2: implement directory read-ahead

Uptodate.c now knows about read-ahead buffers. Use some more aggressive
logic in ocfs2_readdir().

The two functions which currently use directory read-ahead are
ocfs2_find_entry() and ocfs2_readdir().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ocfs2/buffer_head_io.h b/fs/ocfs2/buffer_head_io.h
index 6ecb90937b68..6cc20930fac3 100644
--- a/fs/ocfs2/buffer_head_io.h
+++ b/fs/ocfs2/buffer_head_io.h
@@ -49,7 +49,7 @@ int ocfs2_read_blocks(struct ocfs2_super          *osb,
 
 
 #define OCFS2_BH_CACHED            1
-#define OCFS2_BH_READAHEAD         8    /* use this to pass READA down to submit_bh */
+#define OCFS2_BH_READAHEAD         8
 
 static inline int ocfs2_read_block(struct ocfs2_super * osb, u64 off,
                                    struct buffer_head **bh, int flags,