From: Michal Hocko Subject: Re: [RFC -v2 7/8] btrfs: Prevent from early transaction abort Date: Wed, 19 Aug 2015 14:26:40 +0200 Message-ID: <20150819122640.GA8541@dhcp22.suse.cz> References: <1438768284-30927-1-git-send-email-mhocko@kernel.org> <1438768284-30927-8-git-send-email-mhocko@kernel.org> <20150818104031.GF5033@dhcp22.suse.cz> <20150818171144.GA5206@ret.DHCP.TheFacebook.com> <20150818172914.GO5033@dhcp22.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii 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 To: Chris Mason Return-path: Content-Disposition: inline In-Reply-To: <20150818172914.GO5033@dhcp22.suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Tue 18-08-15 19:29:14, Michal Hocko wrote: > On Tue 18-08-15 13:11:44, Chris Mason wrote: > > 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. > > OK, I will rephrase the changelogs (tomorrow) to not refer to an > unmerged patch and would appreciate if you can take them and route them > through your tree. I will then drop them from my pile. Poste in a separate thread http://lkml.kernel.org/r/1439986661-15896-1-git-send-email-mhocko@kernel.org -- Michal Hocko SUSE Labs