diff options
Diffstat (limited to 'lib/kref.c')
-rw-r--r-- | lib/kref.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/lib/kref.c b/lib/kref.c index 4a467faf1367..0d07cc31c818 100644 --- a/lib/kref.c +++ b/lib/kref.c | |||
@@ -52,12 +52,7 @@ int kref_put(struct kref *kref, void (*release)(struct kref *kref)) | |||
52 | WARN_ON(release == NULL); | 52 | WARN_ON(release == NULL); |
53 | WARN_ON(release == (void (*)(struct kref *))kfree); | 53 | WARN_ON(release == (void (*)(struct kref *))kfree); |
54 | 54 | ||
55 | /* | 55 | if (atomic_dec_and_test(&kref->refcount)) { |
56 | * if current count is one, we are the last user and can release object | ||
57 | * right now, avoiding an atomic operation on 'refcount' | ||
58 | */ | ||
59 | if ((atomic_read(&kref->refcount) == 1) || | ||
60 | (atomic_dec_and_test(&kref->refcount))) { | ||
61 | release(kref); | 56 | release(kref); |
62 | return 1; | 57 | return 1; |
63 | } | 58 | } |