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| author |   Pankaj Gupta <pankaj.gupta@cloud.ionos.com> | 2020-11-11 06:16:58 +0100 |
|---|---|---|
| committer |   Song Liu <songliubraving@fb.com> | 2020-11-30 10:12:35 -0800 |
| commit | a23f2aae8498d8c8bb6ff5301bda02db8093cb09 (patch) | |
| tree | 77978801460450f726e0bf454474d653c8a330f3 /drivers/md/md.c | |
| parent | md: add comments in md_flush_request() (diff) | |
| download | linux-dev-a23f2aae8498d8c8bb6ff5301bda02db8093cb09.tar.xz linux-dev-a23f2aae8498d8c8bb6ff5301bda02db8093cb09.zip | |
md: use current request time as base for ktime comparisons
Request coalescing logic uses 'prev_flush_start' as base to
compare the current request start time. 'prev_flush_start' is
updated in other context.
This patch changes this by using ktime comparison base to
'req_start' for better readability of code.
Signed-off-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index a0998ad6388c..1a3a6150123e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -667,10 +667,10 @@ bool md_flush_request(struct mddev *mddev, struct bio *bio) */ wait_event_lock_irq(mddev->sb_wait, !mddev->flush_bio || - ktime_after(mddev->prev_flush_start, req_start), + ktime_before(req_start, mddev->prev_flush_start), mddev->lock); /* new request after previous flush is completed */ - if (!ktime_after(mddev->prev_flush_start, req_start)) { + if (ktime_after(req_start, mddev->prev_flush_start)) { WARN_ON(mddev->flush_bio); mddev->flush_bio = bio; bio = NULL; |