Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757978AbYAYHTA (ORCPT ); Fri, 25 Jan 2008 02:19:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757057AbYAYHOy (ORCPT ); Fri, 25 Jan 2008 02:14:54 -0500 Received: from mx2.suse.de ([195.135.220.15]:47455 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756941AbYAYHOv (ORCPT ); Fri, 25 Jan 2008 02:14:51 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Evgeniy Polyakov , Kay Sievers , Greg Kroah-Hartman Subject: [PATCH 016/196] kref: add kref_set() Date: Thu, 24 Jan 2008 23:09:14 -0800 Message-Id: <1201245134-4876-16-git-send-email-gregkh@suse.de> X-Mailer: git-send-email 1.5.3.8 In-Reply-To: <20080125071127.GA4860@kroah.com> References: <20080125071127.GA4860@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1865 Lines: 71 From: Evgeniy Polyakov 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 --- include/linux/kref.h | 1 + lib/kref.c | 15 +++++++++++++-- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/include/linux/kref.h b/include/linux/kref.h index 6fee353..5d18563 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 a6dc3ec..9ecd6e8 100644 --- a/lib/kref.c +++ b/lib/kref.c @@ -15,13 +15,23 @@ #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); -- 1.5.3.8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/