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A patch to fix dm-cache-policy-mq's remove_mapping() conflict with sparc32.

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Merge tag 'dm-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fix from Mike Snitzer:
 "A patch to fix dm-cache-policy-mq's remove_mapping() conflict with
  sparc32"

* tag 'dm-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: avoid conflicting remove_mapping() in mq policy
This commit is contained in:
Linus Torvalds 2013-08-22 10:43:00 -07:00
commit ee7075d45f
1 changed files with 7 additions and 9 deletions
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16
drivers/md/dm-cache-policy-mq.c
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@ -959,23 +959,21 @@ out:
return r; return r;
} }
static void remove_mapping(struct mq_policy *mq, dm_oblock_t oblock) static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
{ {
struct entry *e = hash_lookup(mq, oblock); struct mq_policy *mq = to_mq_policy(p);
struct entry *e;
mutex_lock(&mq->lock);
e = hash_lookup(mq, oblock);
BUG_ON(!e || !e->in_cache); BUG_ON(!e || !e->in_cache);
del(mq, e); del(mq, e);
e->in_cache = false; e->in_cache = false;
push(mq, e); push(mq, e);
}
static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
{
struct mq_policy *mq = to_mq_policy(p);
mutex_lock(&mq->lock);
remove_mapping(mq, oblock);
mutex_unlock(&mq->lock); mutex_unlock(&mq->lock);
} }