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 | } | 
