block: remove the WRITE_BARRIER flag

It's unused now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 352c486273815c078afca710897aba4e14c5151a..d6add69bc170298afaf5d91543052fd5ac360030 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -135,7 +135,6 @@ struct inodes_stat_t {
  *                     immediately after submission. The write equivalent
  *                     of READ_SYNC.
  * WRITE_ODIRECT_PLUG  Special case write for O_DIRECT only.
- * WRITE_BARRIER       DEPRECATED. Always fails. Use FLUSH/FUA instead.
  * WRITE_FLUSH         Like WRITE_SYNC but with preceding cache flush.
  * WRITE_FUA           Like WRITE_SYNC but data is guaranteed to be on
  *                     non-volatile media on completion.
@@ -157,8 +156,6 @@ struct inodes_stat_t {
 #define WRITE_SYNC             (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG)
 #define WRITE_ODIRECT_PLUG     (WRITE | REQ_SYNC)
 #define WRITE_META             (WRITE | REQ_META)
-#define WRITE_BARRIER          (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG | \
-                                REQ_HARDBARRIER)
 #define WRITE_FLUSH            (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG | \
                                 REQ_FLUSH)
 #define WRITE_FUA              (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG | \