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md/bitmap: always wake up md_thread in timeout_store

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md_wakeup_thread() can handle the case that pass in md_thread is NULL,
the only difference is that md_wakeup_thread() will be called when
current timeout is 'MAX_SCHEDULE_TIMEOUT', this should not matter
because timeout_store() is not hot path, and the daemon process is
woke up more than demand from other context already.

Prepare to factor out a helper to set timeout.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230523021017.3048783-4-yukuai1@huaweicloud.com
This commit is contained in:
Yu Kuai 2023-05-23 10:10:15 +08:00 committed by Song Liu
parent 955a257d69
commit c333673a78
1 changed files with 3 additions and 3 deletions
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6
drivers/md/md-bitmap.c
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@ -2476,11 +2476,11 @@ timeout_store(struct mddev *mddev, const char *buf, size_t len)
* the bitmap is all clean and we don't need to
* adjust the timeout right now
*/
if (mddev->thread->timeout < MAX_SCHEDULE_TIMEOUT) {
if (mddev->thread->timeout < MAX_SCHEDULE_TIMEOUT)
mddev->thread->timeout = timeout;
md_wakeup_thread(mddev->thread);
}
}
md_wakeup_thread(mddev->thread);
return len;
}