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=-4.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable 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 0E0B6C282C3 for ; Thu, 24 Jan 2019 10:28:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D13AD218AD for ; Thu, 24 Jan 2019 10:28:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="tHr1GgUn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727590AbfAXK2J (ORCPT ); Thu, 24 Jan 2019 05:28:09 -0500 Received: from aserp2130.oracle.com ([141.146.126.79]:44698 "EHLO aserp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726046AbfAXK2I (ORCPT ); Thu, 24 Jan 2019 05:28:08 -0500 Received: from pps.filterd (aserp2130.oracle.com [127.0.0.1]) by aserp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id x0OANvFS003599; Thu, 24 Jan 2019 10:28:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2018-07-02; bh=aDl+ytAS7V7RyMu2EPFO/emYddLI+KhMS1596c8Wtu8=; b=tHr1GgUn2h4foTueONXFusaoEZBO+HGfp6SLMfpvySz9t9Dedjtc7BMXKtMzdsj7it6P aIoLpvevfpAXGpx4uiG6etmkkE9TPUoBYwfKZPj+BFB+E97/gOz4R9rq2ggz6tZpUcSB vDnUERR36gBg4iJcLeMl84tE6O6AsnYAxsJTMtjRmQPW4keHJI8bPpCtYCo6eYrieaeX +FzDm8Uj97jXFxSJ0Ac4tNjMnMTxRjnZ5Tq8YJ/9ULOhRA1HcDiTBcJydcFH0/usXp9z IryKTHobMkVOECZFzHB9v48IG0ZU6RwhtYTWoDQH901oH6mqIQNRIRqqYw0zIa2O/DAL +A== Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp2130.oracle.com with ESMTP id 2q3sdeq781-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 24 Jan 2019 10:28:06 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.14.4/8.14.4) with ESMTP id x0OAS5N0008234 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 24 Jan 2019 10:28:05 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x0OAS5kv018676; Thu, 24 Jan 2019 10:28:05 GMT Received: from will-ThinkCentre-M93p.cn.oracle.com (/10.182.70.234) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 24 Jan 2019 02:28:05 -0800 From: Jianchao Wang To: axboe@kernel.dk Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] small optimization for accessing queue map Date: Thu, 24 Jan 2019 18:25:31 +0800 Message-Id: <1548325533-1695-1-git-send-email-jianchao.w.wang@oracle.com> X-Mailer: git-send-email 2.7.4 X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9145 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=836 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901240076 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jens These two patches are small optimization for accessing the queue mapping in hot path. It saves the queue mapping results into blk_mq_ctx directly, then we needn't do the complicated bounce on queue_hw_ctx[] map[] and mq_map[]. Jianchao Wang (2) blk-mq: save queue mapping result into ctx directly blk-mq: save default hctx into ctx->hctxs block/blk-mq-sched.c | 2 +- block/blk-mq-tag.c | 2 +- block/blk-mq.c | 13 ++++++++++--- block/blk-mq.h | 20 +++++++++----------- block/blk.h | 2 +- 5 files changed, 22 insertions(+), 17 deletions(-) Thanks Jianchao