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dm cache policy smq: change max background work from 10240 to 4096 blocks

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10240 blocks was too much, lowering this reduces the latency of copying
and consumes less memory.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Joe Thornber 2017-11-09 11:16:56 -05:00 committed by Mike Snitzer
parent 64748b1645
commit 8ee18ede74
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-cache-policy-smq.c
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@ -1789,7 +1789,7 @@ static struct dm_cache_policy *__smq_create(dm_cblock_t cache_size,
mq->next_hotspot_period = jiffies; mq->next_hotspot_period = jiffies;
mq->next_cache_period = jiffies; mq->next_cache_period = jiffies;
mq->bg_work = btracker_create(10240); /* FIXME: hard coded value */ mq->bg_work = btracker_create(4096); /* FIXME: hard coded value */
if (!mq->bg_work) if (!mq->bg_work)
goto bad_btracker; goto bad_btracker;