From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B2D1ECDFB3 for ; Tue, 17 Jul 2018 12:51:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C3BBA20C0A for ; Tue, 17 Jul 2018 12:51:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3BBA20C0A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731598AbeGQNXd (ORCPT ); Tue, 17 Jul 2018 09:23:33 -0400 Received: from mx2.suse.de ([195.135.220.15]:56122 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731429AbeGQNXd (ORCPT ); Tue, 17 Jul 2018 09:23:33 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id D7B2BAECA; Tue, 17 Jul 2018 12:50:59 +0000 (UTC) Date: Tue, 17 Jul 2018 14:50:59 +0200 From: Michal Hocko To: Steven Whitehouse Cc: LKML , Artem Bityutskiy , Richard Weinberger , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Cyrille Pitchen , Theodore Ts'o , Andreas Dilger , Bob Peterson , Trond Myklebust , Anna Schumaker , Adrian Hunter , Philippe Ombredanne , Kate Stewart , Mikulas Patocka , linux-mtd@lists.infradead.org, linux-ext4@vger.kernel.org, cluster-devel@redhat.com, linux-nfs@vger.kernel.org, linux-mm@kvack.org Subject: Re: vmalloc with GFP_NOFS Message-ID: <20180717125059.GC30926@dhcp22.suse.cz> References: <20180424162712.GL17484@dhcp22.suse.cz> <20180424200927.GU17484@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180424200927.GU17484@dhcp22.suse.cz> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue 24-04-18 14:09:27, Michal Hocko wrote: > On Tue 24-04-18 20:26:23, Steven Whitehouse wrote: > [...] > > It would be good to fix this, and it has been known as an issue for a long > > time. We might well be able to make use of the new API though. It might be > > as simple as adding the calls when we get & release glocks, but I'd have to > > check the code to be sure, > > Yeah, starting with annotating those locking contexts and how document > how their are used in the reclaim is the great first step. This has to > be done per-fs obviously. Any chance of progress here? -- Michal Hocko SUSE Labs From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Hocko Subject: Re: vmalloc with GFP_NOFS Date: Tue, 17 Jul 2018 14:50:59 +0200 Message-ID: <20180717125059.GC30926@dhcp22.suse.cz> References: <20180424162712.GL17484@dhcp22.suse.cz> <20180424200927.GU17484@dhcp22.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: LKML , Artem Bityutskiy , Richard Weinberger , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Cyrille Pitchen , Theodore Ts'o , Andreas Dilger , Bob Peterson , Trond Myklebust , Anna Schumaker , Adrian Hunter , Philippe Ombredanne , Kate Stewart , Mikulas Patocka , linux-mtd@lists.infradead.org, linux-ext4@vger.kerne To: Steven Whitehouse Return-path: Content-Disposition: inline In-Reply-To: <20180424200927.GU17484@dhcp22.suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org On Tue 24-04-18 14:09:27, Michal Hocko wrote: > On Tue 24-04-18 20:26:23, Steven Whitehouse wrote: > [...] > > It would be good to fix this, and it has been known as an issue for a long > > time. We might well be able to make use of the new API though. It might be > > as simple as adding the calls when we get & release glocks, but I'd have to > > check the code to be sure, > > Yeah, starting with annotating those locking contexts and how document > how their are used in the reclaim is the great first step. This has to > be done per-fs obviously. Any chance of progress here? -- Michal Hocko SUSE Labs From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Hocko Date: Tue, 17 Jul 2018 14:50:59 +0200 Subject: [Cluster-devel] vmalloc with GFP_NOFS In-Reply-To: <20180424200927.GU17484@dhcp22.suse.cz> References: <20180424162712.GL17484@dhcp22.suse.cz> <20180424200927.GU17484@dhcp22.suse.cz> Message-ID: <20180717125059.GC30926@dhcp22.suse.cz> List-Id: To: cluster-devel.redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Tue 24-04-18 14:09:27, Michal Hocko wrote: > On Tue 24-04-18 20:26:23, Steven Whitehouse wrote: > [...] > > It would be good to fix this, and it has been known as an issue for a long > > time. We might well be able to make use of the new API though. It might be > > as simple as adding the calls when we get & release glocks, but I'd have to > > check the code to be sure, > > Yeah, starting with annotating those locking contexts and how document > how their are used in the reclaim is the great first step. This has to > be done per-fs obviously. Any chance of progress here? -- Michal Hocko SUSE Labs