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Commit 78c45607 authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm cache policy smq: be more aggressive about triggering a writeback 



If there are no clean entries to demote we really want to writeback
immediately.

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent a8cd1eba

drivers/md/dm-cache-policy-smq.c

+1 −1
Original line number Diff line number Diff line
@@ -1192,7 +1192,7 @@ static void queue_demotion(struct smq_policy *mq) 


	e = q_peek(&mq->clean, mq->clean.nr_levels / 2, true);

	if (!e) {

		if (!clean_target_met(mq, false))

		if (!clean_target_met(mq, true))

			queue_writeback(mq);

		return;

	}