From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751397Ab0HSF3K (ORCPT ); Thu, 19 Aug 2010 01:29:10 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:35309 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751020Ab0HSF3G (ORCPT ); Thu, 19 Aug 2010 01:29:06 -0400 Date: Wed, 18 Aug 2010 22:29:25 -0700 (PDT) Message-Id: <20100818.222925.233689776.davem@davemloft.net> To: benh@kernel.crashing.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, paulus@au.ibm.com, linuxppc-dev@lists.ozlabs.org Subject: Re: 64-bit ppc rwsem From: David Miller In-Reply-To: <1282195403.22370.296.camel@pasglop> References: <1282107803.22370.173.camel@pasglop> <20100817.222818.193699062.davem@davemloft.net> <1282195403.22370.296.camel@pasglop> X-Mailer: Mew version 6.3 on Emacs 23.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 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 From: Benjamin Herrenschmidt Date: Thu, 19 Aug 2010 15:23:23 +1000 > Similar here, but using atomic_long_t instead so it works for 32-bit too > for me. I suppose we could make that part common indeed. > > What about asm-generic/rwsem-atomic.h or rwsem-cmpxchg.h ? Using rwsem-cmpxchg.h sounds best I guess. From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Date: Thu, 19 Aug 2010 05:29:25 +0000 Subject: Re: 64-bit ppc rwsem Message-Id: <20100818.222925.233689776.davem@davemloft.net> List-Id: References: <1282107803.22370.173.camel@pasglop> <20100817.222818.193699062.davem@davemloft.net> <1282195403.22370.296.camel@pasglop> In-Reply-To: <1282195403.22370.296.camel@pasglop> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: benh@kernel.crashing.org Cc: torvalds@linux-foundation.org, paulus@au.ibm.com, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org From: Benjamin Herrenschmidt Date: Thu, 19 Aug 2010 15:23:23 +1000 > Similar here, but using atomic_long_t instead so it works for 32-bit too > for me. I suppose we could make that part common indeed. > > What about asm-generic/rwsem-atomic.h or rwsem-cmpxchg.h ? Using rwsem-cmpxchg.h sounds best I guess. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sunset.davemloft.net (74-93-104-97-Washington.hfc.comcastbusiness.net [74.93.104.97]) by ozlabs.org (Postfix) with ESMTP id D8B3CB70DC for ; Thu, 19 Aug 2010 15:29:07 +1000 (EST) Date: Wed, 18 Aug 2010 22:29:25 -0700 (PDT) Message-Id: <20100818.222925.233689776.davem@davemloft.net> To: benh@kernel.crashing.org Subject: Re: 64-bit ppc rwsem From: David Miller In-Reply-To: <1282195403.22370.296.camel@pasglop> References: <1282107803.22370.173.camel@pasglop> <20100817.222818.193699062.davem@davemloft.net> <1282195403.22370.296.camel@pasglop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Cc: torvalds@linux-foundation.org, paulus@au.ibm.com, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Benjamin Herrenschmidt Date: Thu, 19 Aug 2010 15:23:23 +1000 > Similar here, but using atomic_long_t instead so it works for 32-bit too > for me. I suppose we could make that part common indeed. > > What about asm-generic/rwsem-atomic.h or rwsem-cmpxchg.h ? Using rwsem-cmpxchg.h sounds best I guess.