]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/commitdiff
Add WRITE_SYNC_PLUG and SWRITE_SYNC_PLUG
authorJens Axboe <jens.axboe@oracle.com>
Mon, 6 Apr 2009 12:48:02 +0000 (14:48 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 6 Apr 2009 15:04:53 +0000 (08:04 -0700)
(S)WRITE_SYNC always unplugs the device right after IO submission.
Sometimes we want to build up a queue before doing so, so add
variants that explicitly DON'T unplug the queue. The caller must
then do that after submitting all the IO.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/fs.h

index a09e17c8f5fd9137720b008196aa29f45ff17bfb..ea0510978f764b1846745aabe2201bc007d960d3 100644 (file)
@@ -96,7 +96,10 @@ struct inodes_stat_t {
 #define READ_SYNC      (READ | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
 #define READ_META      (READ | (1 << BIO_RW_META))
 #define WRITE_SYNC     (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
+#define WRITE_SYNC_PLUG        (WRITE | (1 << BIO_RW_SYNCIO))
 #define SWRITE_SYNC    (SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
+#define SWRITE_SYNC_PLUG       \
+       (SWRITE | (1 << BIO_RW_SYNCIO))
 #define WRITE_BARRIER  (WRITE | (1 << BIO_RW_BARRIER))
 #define DISCARD_NOBARRIER (1 << BIO_RW_DISCARD)
 #define DISCARD_BARRIER ((1 << BIO_RW_DISCARD) | (1 << BIO_RW_BARRIER))