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authorJoe Thornber <ejt@redhat.com>2017-11-09 11:16:56 -0500
committerMike Snitzer <snitzer@redhat.com>2017-11-10 15:45:04 -0500
commit8ee18ede74328906b692403fadb2658cf56f26b3 (patch)
tree1375974603c46a625bfba2f01920a8480443a80d /drivers/md
parentdm cache background tracker: limit amount of background work that may be issued at once (diff)
downloadlinux-dev-8ee18ede74328906b692403fadb2658cf56f26b3.tar.xz
linux-dev-8ee18ede74328906b692403fadb2658cf56f26b3.zip
dm cache policy smq: change max background work from 10240 to 4096 blocks
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>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-cache-policy-smq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c
index 99fae819a0e7..58be846ba5b9 100644
--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -1789,7 +1789,7 @@ static struct dm_cache_policy *__smq_create(dm_cblock_t cache_size,
mq->next_hotspot_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)
goto bad_btracker;