From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755318AbaCRLSv (ORCPT ); Tue, 18 Mar 2014 07:18:51 -0400 Received: from dehamd003.servertools24.de ([31.47.254.18]:42690 "EHLO dehamd003.servertools24.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755206AbaCRLSt (ORCPT ); Tue, 18 Mar 2014 07:18:49 -0400 X-Greylist: delayed 505 seconds by postgrey-1.27 at vger.kernel.org; Tue, 18 Mar 2014 07:18:49 EDT X-No-Relay: not in my network X-No-Relay: not in my network Message-ID: <5328299C.10807@ladisch.de> Date: Tue, 18 Mar 2014 12:10:20 +0100 From: Clemens Ladisch User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: noman pouigt CC: linux-kernel@vger.kernel.org Subject: Re: atomic read and increment question References: In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org noman pouigt wrote: > x = 1; > temp = atomic_read_increment(x); atomic_set(&x, 1); temp = atomic_inc_return(&x); > I looked through the documentation for atomic > operations but couldn't find out the api Not everything is fully documented. Look through include/asm-generic/atomic.h. Regards, Clemens