diff options
-rw-r--r-- | drivers/md/dm-cache-policy-mq.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c index 4296155090b2..db490f74c7f8 100644 --- a/drivers/md/dm-cache-policy-mq.c +++ b/drivers/md/dm-cache-policy-mq.c | |||
@@ -1001,10 +1001,14 @@ static void mq_force_mapping(struct dm_cache_policy *p, | |||
1001 | 1001 | ||
1002 | static dm_cblock_t mq_residency(struct dm_cache_policy *p) | 1002 | static dm_cblock_t mq_residency(struct dm_cache_policy *p) |
1003 | { | 1003 | { |
1004 | dm_cblock_t r; | ||
1004 | struct mq_policy *mq = to_mq_policy(p); | 1005 | struct mq_policy *mq = to_mq_policy(p); |
1005 | 1006 | ||
1006 | /* FIXME: lock mutex, not sure we can block here */ | 1007 | mutex_lock(&mq->lock); |
1007 | return to_cblock(mq->nr_cblocks_allocated); | 1008 | r = to_cblock(mq->nr_cblocks_allocated); |
1009 | mutex_unlock(&mq->lock); | ||
1010 | |||
1011 | return r; | ||
1008 | } | 1012 | } |
1009 | 1013 | ||
1010 | static void mq_tick(struct dm_cache_policy *p) | 1014 | static void mq_tick(struct dm_cache_policy *p) |