From patchwork Mon Apr 6 19:58:37 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tejun Heo X-Patchwork-Id: 6164381 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 200B29F2EC for ; Mon, 6 Apr 2015 20:01:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 44B9A20166 for ; Mon, 6 Apr 2015 20:01:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6AD1B20121 for ; Mon, 6 Apr 2015 20:01:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753755AbbDFUBd (ORCPT ); Mon, 6 Apr 2015 16:01:33 -0400 Received: from mail-qg0-f45.google.com ([209.85.192.45]:35052 "EHLO mail-qg0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753663AbbDFUAq (ORCPT ); Mon, 6 Apr 2015 16:00:46 -0400 Received: by qgej70 with SMTP id j70so14948809qge.2; Mon, 06 Apr 2015 13:00:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=qi6fTLlBmmMn0loeK4Kt5MDFabz2aiXEo7lrLCuuRu4=; b=Dt8zo8n14Hgfob6THiewQCqQnNpMFEX/qteOuByRqcXkCz+Od038MWNbn9cJNNwK6v FFIwQWv9O22AcIgPamQ2WO5qrQZJJNzbeDk5hhpx/qtcxSdhgxFhM6pXQ76b3okxN1p0 DiFYl4Wv1xXieLInitMIXgZ+zMu82kkrZktksD37sU/tvIyHtAAeDCSiiu/gXfAR7lvh 4PgUNtNMTA2KohA8tNgsne8Xy7vl/e0xmtRa+8PxmvPVda955sosE2hi6KIvfJgkQI+h VyuZJAFfK5EqxgAHPNQLET1EUFDCNTLH+0d+DPQ1WPXFNJ9WNsHzt7j4DD3hDEcV/gsW Q7MQ== X-Received: by 10.140.238.21 with SMTP id j21mr20098238qhc.95.1428350445233; Mon, 06 Apr 2015 13:00:45 -0700 (PDT) Received: from htj.duckdns.org.lan (207-38-238-8.c3-0.wsd-ubr1.qens-wsd.ny.cable.rcn.com. [207.38.238.8]) by mx.google.com with ESMTPSA id z67sm3914418qgz.10.2015.04.06.13.00.42 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Apr 2015 13:00:43 -0700 (PDT) From: Tejun Heo To: axboe@kernel.dk Cc: linux-kernel@vger.kernel.org, jack@suse.cz, hch@infradead.org, hannes@cmpxchg.org, linux-fsdevel@vger.kernel.org, vgoyal@redhat.com, lizefan@huawei.com, cgroups@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.cz, clm@fb.com, fengguang.wu@intel.com, david@fromorbit.com, gthelen@google.com, Tejun Heo , Andrew Morton , Alexander Viro Subject: [PATCH 48/49] mpage: make __mpage_writepage() honor cgroup writeback Date: Mon, 6 Apr 2015 15:58:37 -0400 Message-Id: <1428350318-8215-49-git-send-email-tj@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1428350318-8215-1-git-send-email-tj@kernel.org> References: <1428350318-8215-1-git-send-email-tj@kernel.org> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP __mpage_writepage() is used to implement mpage_writepages() which in turn is used for ->writepages() of various filesystems. All writeback logic is now updated to handle cgroup writeback and the block cgroup to issue IOs for is encoded in writeback_control and can be retrieved from the inode; however, __mpage_writepage() currently ignores the blkcg indicated by the inode and issues all bio's without explicit blkcg association. This patch updates __mpage_writepage() so that the issued bio's are associated with inode_to_writeback_blkcg_css(inode). v2: Updated for per-inode wb association. Signed-off-by: Tejun Heo Cc: Jens Axboe Cc: Jan Kara Cc: Andrew Morton Cc: Alexander Viro --- fs/mpage.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/mpage.c b/fs/mpage.c index 3e79220..a3ccb0b 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -605,6 +605,8 @@ alloc_new: bio_get_nr_vecs(bdev), GFP_NOFS|__GFP_HIGH); if (bio == NULL) goto confused; + + bio_associate_blkcg(bio, inode_to_wb_blkcg_css(inode)); } /*