From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f69.google.com (mail-wm0-f69.google.com [74.125.82.69]) by kanga.kvack.org (Postfix) with ESMTP id 6FBB76B0399 for ; Wed, 21 Dec 2016 07:36:07 -0500 (EST) Received: by mail-wm0-f69.google.com with SMTP id i131so30445693wmf.3 for ; Wed, 21 Dec 2016 04:36:07 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id to13si27356064wjb.192.2016.12.21.04.36.06 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 21 Dec 2016 04:36:06 -0800 (PST) Date: Wed, 21 Dec 2016 13:36:03 +0100 From: Jan Kara Subject: Re: [PATCH v4 1/3] dax: masking off __GFP_FS in fs DAX handlers Message-ID: <20161221123603.GA10320@quack2.suse.cz> References: <148184524161.184728.14005697153880489871.stgit@djiang5-desk3.ch.intel.com> <20161216010730.GY4219@dastard> <20161216161916.GA2410@linux.intel.com> <20161216220450.GZ4219@dastard> <20161219195302.GI17598@quack2.suse.cz> <20161219211711.GD4219@dastard> <20161220101352.GE3769@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161220101352.GE3769@dhcp22.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Dave Chinner , Jan Kara , Ross Zwisler , Dave Jiang , akpm@linux-foundation.org, linux-nvdimm@lists.01.org, hch@lst.de, linux-mm@kvack.org, tytso@mit.edu, dan.j.williams@intel.com On Tue 20-12-16 11:13:52, Michal Hocko wrote: > I am not fully familiar with the DAX changes which started this > discussion but if there is a reclaim recursion problem from within the > fault path then the scope api sounds like a good fit here. > > [1] http://lkml.kernel.org/r/20161215140715.12732-1-mhocko@kernel.org Yes, once your scope API and associated ext4 changes are in, we can stop playing tricks with gfp_mask in DAX code at least for ext4. Honza -- Jan Kara SUSE Labs, CR -- 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