From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-f44.google.com (mail-qg0-f44.google.com [209.85.192.44]) by kanga.kvack.org (Postfix) with ESMTP id 242136B0253 for ; Tue, 18 Aug 2015 13:12:03 -0400 (EDT) Received: by qgj62 with SMTP id 62so122293751qgj.2 for ; Tue, 18 Aug 2015 10:12:03 -0700 (PDT) Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com. [67.231.145.42]) by mx.google.com with ESMTPS id g2si32206420qhc.60.2015.08.18.10.12.01 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 18 Aug 2015 10:12:02 -0700 (PDT) Date: Tue, 18 Aug 2015 13:11:44 -0400 From: Chris Mason Subject: Re: [RFC -v2 7/8] btrfs: Prevent from early transaction abort Message-ID: <20150818171144.GA5206@ret.DHCP.TheFacebook.com> References: <1438768284-30927-1-git-send-email-mhocko@kernel.org> <1438768284-30927-8-git-send-email-mhocko@kernel.org> <20150818104031.GF5033@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20150818104031.GF5033@dhcp22.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: LKML , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Andrew Morton , Johannes Weiner , Tetsuo Handa , Dave Chinner , Theodore Ts'o , linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, Jan Kara On Tue, Aug 18, 2015 at 12:40:32PM +0200, Michal Hocko wrote: > From: Michal Hocko > > Btrfs relies on GFP_NOFS allocation when commiting the transaction but > since "mm: page_alloc: do not lock up GFP_NOFS allocations upon OOM" > those allocations are allowed to fail which can lead to a pre-mature > transaction abort: I can either put the btrfs nofail ones on my pull for Linus, or you can add my sob and send as one unit. Just let me know how you'd rather do it. -chris -- 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: email@kvack.org