From 41ca28ab2abd76dc203e2c3a7cd609607cb927c3 Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Mon, 10 Dec 2007 23:03:43 +0300 Subject: kref: add kref_set() This adds kref_set() to the kref api for future use by people who really know what they are doing with krefs... From: Evgeniy Polyakov Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- lib/kref.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'lib') diff --git a/lib/kref.c b/lib/kref.c index a6dc3ec328e0..9ecd6e865610 100644 --- a/lib/kref.c +++ b/lib/kref.c @@ -14,14 +14,24 @@ #include #include +/** + * 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); -- cgit v1.2.3-58-ga151