From patchwork Thu Mar 1 07:09:53 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anton Blanchard X-Patchwork-Id: 143930 X-Patchwork-Delegate: benh@kernel.crashing.org Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id 244E4B6FFD for ; Thu, 1 Mar 2012 18:11:15 +1100 (EST) Received: from kryten (ppp121-44-32-91.lns20.syd6.internode.on.net [121.44.32.91]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPSA id 05841B6EE6; Thu, 1 Mar 2012 18:10:10 +1100 (EST) Date: Thu, 1 Mar 2012 18:09:53 +1100 From: Anton Blanchard To: benh@kernel.crashing.org, paulus@samba.org, akpm@linux-foundation.org, asharma@fb.com, vapier@gentoo.org, eric.dumazet@gmail.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] atomic: Allow atomic_inc_not_zero to be overridden Message-ID: <20120301180953.0f61576f@kryten> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.24.4; i686-pc-linux-gnu) Mime-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org We want to implement a ppc64 specific version of atomic_inc_not_zero so wrap it in an ifdef to allow it to be overridden. Signed-off-by: Anton Blanchard Acked-by: Mike Frysinger Index: linux-build/include/linux/atomic.h =================================================================== --- linux-build.orig/include/linux/atomic.h 2012-02-11 14:59:23.284714257 +1100 +++ linux-build/include/linux/atomic.h 2012-02-11 15:01:14.894764555 +1100 @@ -24,7 +24,9 @@ static inline int atomic_add_unless(atom * Atomically increments @v by 1, so long as @v is non-zero. * Returns non-zero if @v was non-zero, and zero otherwise. */ +#ifndef atomic_inc_not_zero #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) +#endif /** * atomic_inc_not_zero_hint - increment if not null