From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754594Ab0CXCjB (ORCPT ); Tue, 23 Mar 2010 22:39:01 -0400 Received: from cantor2.suse.de ([195.135.220.15]:55410 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754560Ab0CXCi6 (ORCPT ); Tue, 23 Mar 2010 22:38:58 -0400 Date: Tue, 23 Mar 2010 19:38:37 -0700 From: Greg KH To: Mel Gorman Cc: Andrew Morton , Christian Ehrhardt , linux-mm@kvack.org, Nick Piggin , Chris Mason , Jens Axboe , linux-kernel@vger.kernel.org, Corrado Zoccolo , Rik van Riel , Johannes Weiner Subject: Re: [RFC PATCH 0/3] Avoid the use of congestion_wait under zone pressure Message-ID: <20100324023837.GH4359@suse.de> References: <20100315130935.f8b0a2d7.akpm@linux-foundation.org> <20100322235053.GD9590@csn.ul.ie> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100322235053.GD9590@csn.ul.ie> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 22, 2010 at 11:50:54PM +0000, Mel Gorman wrote: > 2. TTY using high order allocations more frequently > fix title: ttyfix > fixed in mainline? yes, in 2.6.34-rc2 > affects: 2.6.31 to 2.6.34-rc1 > > 2.6.31 made pty's use the same buffering logic as tty. Unfortunately, > it was also allowed to make high-order GFP_ATOMIC allocations. This > triggers some high-order reclaim and introduces some stalls. It's > fixed in 2.6.34-rc2 but needs back-porting. It will go to the other stable kernels for their next round of releases now that it is in Linus's tree. > Next Steps > ========== > > Jens, any problems with me backporting the async/sync fixes from 2.6.31 to > 2.6.30.x (assuming that is still maintained, Greg?)? No, .30 is no longer being maintained. thanks, greg k-h