From patchwork Mon Sep 30 01:52:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 11165929 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6AEEE13B1 for ; Mon, 30 Sep 2019 01:52:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5069521835 for ; Mon, 30 Sep 2019 01:52:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729032AbfI3Bw2 (ORCPT ); Sun, 29 Sep 2019 21:52:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:64553 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729010AbfI3Bw2 (ORCPT ); Sun, 29 Sep 2019 21:52:28 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5C1AA81F07; Mon, 30 Sep 2019 01:52:28 +0000 (UTC) Received: from localhost.localdomain (unknown [10.70.39.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id AC0365D9C3; Mon, 30 Sep 2019 01:52:23 +0000 (UTC) From: xiubli@redhat.com To: josef@toxicpanda.com, axboe@kernel.dk Cc: mchristi@redhat.com, ming.lei@redhat.com, linux-block@vger.kernel.org, Xiubo Li Subject: [PATCH v4 0/2] blk-mq: Avoid memory reclaim when allocating Date: Mon, 30 Sep 2019 07:22:11 +0530 Message-Id: <20190930015213.8865-1-xiubli@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 30 Sep 2019 01:52:28 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Xiubo Li Changed in V2: - Addressed the comment from Ming Lei, thanks. Changed in V3: - Switch to memalloc_noio_save/restore from Christoph's comment, thanks. Changed in V4: - Switch back to v2 by remove the memalloc_ stuff - With a small fix by making all the gfp flags to BLK_MQ_GFP_FLAGS in blk_mq_alloc_rq_map where the NOIO is needed. Xiubo Li (2): blk-mq: Avoid memory reclaim when allocating request map blk-mq: use BLK_MQ_GFP_FLAGS macro instead block/blk-mq-tag.c | 5 +++-- block/blk-mq-tag.h | 5 ++++- block/blk-mq.c | 20 +++++++++++--------- 3 files changed, 18 insertions(+), 12 deletions(-)