dm cache: resolve small nits and improve Documentation

[cascardo/linux.git] / drivers / md / dm-cache-policy-mq.c

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 7209fab..416b7b7 100644 (file)
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -310,7 +310,7 @@ static void free_entry(struct entry_pool *ep, struct entry *e)
 static struct entry *epool_find(struct entry_pool *ep, dm_cblock_t cblock)
 {
        struct entry *e = ep->entries + from_cblock(cblock);
-       return e->hlist.pprev ? e : NULL;
+       return !hlist_unhashed(&e->hlist) ? e : NULL;
 }
 
 static bool epool_empty(struct entry_pool *ep)