diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/zswap.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/mm/zswap.c b/mm/zswap.c index 70e409add32b..32bcc291397f 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -545,15 +545,11 @@ static void zswap_entry_get(struct zswap_entry *entry) entry->refcount++; } -/* caller must hold the tree lock -* remove from the tree and free it, if nobody reference the entry -*/ +/* caller must hold the tree lock */ static void zswap_entry_put(struct zswap_entry *entry) { - int refcount = --entry->refcount; - - WARN_ON_ONCE(refcount < 0); - if (refcount == 0) { + WARN_ON_ONCE(!entry->refcount); + if (--entry->refcount == 0) { WARN_ON_ONCE(!RB_EMPTY_NODE(&entry->rbnode)); zswap_entry_free(entry); } |