From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261371AbUKFLhX (ORCPT ); Sat, 6 Nov 2004 06:37:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261372AbUKFLhX (ORCPT ); Sat, 6 Nov 2004 06:37:23 -0500 Received: from thebsh.namesys.com ([212.16.7.65]:62612 "HELO thebsh.namesys.com") by vger.kernel.org with SMTP id S261371AbUKFLhN (ORCPT ); Sat, 6 Nov 2004 06:37:13 -0500 From: Nikita Danilov MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16780.46945.925271.26168@thebsh.namesys.com> Date: Sat, 6 Nov 2004 14:37:05 +0300 To: Andrea Arcangeli Cc: Nick Piggin , Jesse Barnes , Marcelo Tosatti , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] Remove OOM killer from try_to_free_pages / all_unreclaimable braindamage In-Reply-To: <20041106015051.GU8229@dualathlon.random> References: <20041105200118.GA20321@logos.cnet> <200411051532.51150.jbarnes@sgi.com> <20041106012018.GT8229@dualathlon.random> <418C2861.6030501@cyberone.com.au> <20041106015051.GU8229@dualathlon.random> X-Mailer: VM 7.17 under 21.5 (patch 17) "chayote" (+CVS-20040321) XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrea Arcangeli writes: > On Sat, Nov 06, 2004 at 12:26:57PM +1100, Nick Piggin wrote: > > need to be performed and have no failure path. For example __GFP_REPEAT. > > all allocations should have a failure path to avoid deadlocks. But in This is not currently possible for a complex operation that allocates multiple pages and has always complete as a whole. We need page-reservation API of some sort. There were several attempts to introduce this, but none get into mainline. Nikita. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nikita Danilov MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16780.46945.925271.26168@thebsh.namesys.com> Date: Sat, 6 Nov 2004 14:37:05 +0300 Subject: Re: [PATCH] Remove OOM killer from try_to_free_pages / all_unreclaimable braindamage In-Reply-To: <20041106015051.GU8229@dualathlon.random> References: <20041105200118.GA20321@logos.cnet> <200411051532.51150.jbarnes@sgi.com> <20041106012018.GT8229@dualathlon.random> <418C2861.6030501@cyberone.com.au> <20041106015051.GU8229@dualathlon.random> Sender: owner-linux-mm@kvack.org Return-Path: To: Andrea Arcangeli Cc: Nick Piggin , Jesse Barnes , Marcelo Tosatti , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Andrea Arcangeli writes: > On Sat, Nov 06, 2004 at 12:26:57PM +1100, Nick Piggin wrote: > > need to be performed and have no failure path. For example __GFP_REPEAT. > > all allocations should have a failure path to avoid deadlocks. But in This is not currently possible for a complex operation that allocates multiple pages and has always complete as a whole. We need page-reservation API of some sort. There were several attempts to introduce this, but none get into mainline. Nikita. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org