From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id 2ABEC6B0006 for ; Thu, 1 Feb 2018 10:47:01 -0500 (EST) Received: by mail-wm0-f72.google.com with SMTP id d63so1943793wma.4 for ; Thu, 01 Feb 2018 07:47:01 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id a19si9924666wra.452.2018.02.01.07.46.59 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 01 Feb 2018 07:47:00 -0800 (PST) Date: Thu, 1 Feb 2018 16:46:55 +0100 From: Michal Hocko Subject: Re: [Lsf-pc] [LSF/MM TOPIC] few MM topics Message-ID: <20180201154655.GN21609@dhcp22.suse.cz> References: <20180124092649.GC21134@dhcp22.suse.cz> <20180131192104.GD4841@magnolia> <20180131202438.GA21609@dhcp22.suse.cz> <20180131234126.oobqdp6ibcayduu3@destitution> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180131234126.oobqdp6ibcayduu3@destitution> Sender: owner-linux-mm@kvack.org List-ID: To: Dave Chinner Cc: "Darrick J. Wong" , Rik van Riel , linux-nvme@lists.infradead.org, linux-mm@kvack.org, Johannes Weiner , linux-fsdevel@vger.kernel.org, lsf-pc@lists.linux-foundation.org On Thu 01-02-18 10:41:26, Dave Chinner wrote: > On Wed, Jan 31, 2018 at 09:24:38PM +0100, Michal Hocko wrote: [...] > > This would both document the context > > and also limit NOFS allocations to bare minumum. > > Yup, most of XFS already uses implicit GFP_NOFS allocation calls via > the transaction context process flag manipulation. Yeah, xfs is in quite a good shape. There are still around 40+ KM_NOFS users. Are there any major obstacles to remove those? Or is this just "send patches" thing. Compare that to $ git grep GFP_NOFS -- fs/btrfs/ | wc -l 272 -- Michal Hocko SUSE Labs -- 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