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| author | Joe Thornber <ejt@redhat.com> | 2017-05-11 12:11:06 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-05-15 04:54:33 +0300 |
| commit | 4d44ec5ab751be63c5d348f13294304d87baa8c3 (patch) | |
| tree | 5892bf620cf814552047025079d2dda7cbb1b224 | |
| parent | 78c45607b909fb384c47c134d89b39285a6a8b45 (diff) | |
| download | linux-4d44ec5ab751be63c5d348f13294304d87baa8c3.tar.xz | |
dm cache policy smq: put newly promoted entries at the top of the multiqueue
This stops entries bouncing in and out of the cache quickly.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-cache-policy-smq.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c index 5aa8f43856c5..54421a846a0c 100644 --- a/drivers/md/dm-cache-policy-smq.c +++ b/drivers/md/dm-cache-policy-smq.c @@ -1452,6 +1452,7 @@ static void __complete_background_work(struct smq_policy *mq, clear_pending(mq, e); if (success) { e->oblock = work->oblock; + e->level = NR_CACHE_LEVELS - 1; push(mq, e); // h, q, a } else { |