Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a1f24252 authored by Jens Axboe's avatar Jens Axboe Committed by Linus Torvalds
Browse files

Add WRITE_SYNC_PLUG and SWRITE_SYNC_PLUG 



(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: default avatarJens Axboe <jens.axboe@oracle.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1faa16d2

include/linux/fs.h

+3 −0
Original line number Diff line number Diff line
@@ -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))