diff options
| author | Namhyung Kim <namhyung@gmail.com> | 2011-08-25 00:43:34 -0400 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-08-25 00:43:34 -0400 |
| commit | a5bf4df0c88b88d34b6f0e3bc8a402dac7d14611 (patch) | |
| tree | 40296244aa28ddff0360a1a57878a99926243620 | |
| parent | aeb9b211849621f592288ed5ad694de9eeaae87a (diff) | |
md: use REQ_NOIDLE flag in md_super_write()
Queue idling is used for the anticipation of immediate
sequencial I/O's but md_super_write() is a kind of one-
shot operation, coupled with md_super_wait(), so the
idling in this case will be just a waste of time.
Specifying REQ_NOIDLE prevents it. Instead of adding
the flag to submit_bio() directly, use pre-defined
macro WRITE_FLUSH_FUA.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/md/md.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 9a880239219d..aca611711264 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c | |||
| @@ -848,7 +848,7 @@ void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, | |||
| 848 | bio->bi_end_io = super_written; | 848 | bio->bi_end_io = super_written; |
| 849 | 849 | ||
| 850 | atomic_inc(&mddev->pending_writes); | 850 | atomic_inc(&mddev->pending_writes); |
| 851 | submit_bio(REQ_WRITE | REQ_SYNC | REQ_FLUSH | REQ_FUA, bio); | 851 | submit_bio(WRITE_FLUSH_FUA, bio); |
| 852 | } | 852 | } |
| 853 | 853 | ||
| 854 | void md_super_wait(mddev_t *mddev) | 854 | void md_super_wait(mddev_t *mddev) |