diff options
| -rw-r--r-- | include/linux/kref.h | 1 | ||||
| -rw-r--r-- | lib/kref.c | 15 |
2 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/kref.h b/include/linux/kref.h index 6fee3539893..5d185635786 100644 --- a/include/linux/kref.h +++ b/include/linux/kref.h @@ -24,6 +24,7 @@ struct kref { atomic_t refcount; }; +void kref_set(struct kref *kref, int num); void kref_init(struct kref *kref); void kref_get(struct kref *kref); int kref_put(struct kref *kref, void (*release) (struct kref *kref)); diff --git a/lib/kref.c b/lib/kref.c index a6dc3ec328e..9ecd6e86561 100644 --- a/lib/kref.c +++ b/lib/kref.c @@ -15,13 +15,23 @@ #include <linux/module.h> /** + * kref_set - initialize object and set refcount to requested number. + * @kref: object in question. + * @num: initial reference counter + */ +void kref_set(struct kref *kref, int num) +{ + atomic_set(&kref->refcount, num); + smp_mb(); +} + +/** * kref_init - initialize object. * @kref: object in question. */ void kref_init(struct kref *kref) { - atomic_set(&kref->refcount,1); - smp_mb(); + kref_set(kref, 1); } /** @@ -61,6 +71,7 @@ int kref_put(struct kref *kref, void (*release)(struct kref *kref)) return 0; } +EXPORT_SYMBOL(kref_set); EXPORT_SYMBOL(kref_init); EXPORT_SYMBOL(kref_get); EXPORT_SYMBOL(kref_put); |