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Commit 2e633095 authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm cache policy smq: don't do any writebacks unless IDLE



If there are no clean blocks to be demoted the writeback will be
triggered at that point.  Preemptively writing back can hurt high IO
load scenarios.

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 49b7f768
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