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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT 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 08A11C43144 for ; Thu, 28 Jun 2018 20:58:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B316A279AF for ; Thu, 28 Jun 2018 20:58:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B316A279AF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com 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 S965495AbeF1U5f (ORCPT ); Thu, 28 Jun 2018 16:57:35 -0400 Received: from mga09.intel.com ([134.134.136.24]:31846 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935840AbeF1U5N (ORCPT ); Thu, 28 Jun 2018 16:57:13 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Jun 2018 13:57:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,284,1526367600"; d="scan'208";a="50702319" Received: from unknown (HELO localhost.lm.intel.com) ([10.232.112.44]) by fmsmga007.fm.intel.com with ESMTP; 28 Jun 2018 13:56:56 -0700 From: Keith Busch To: Johannes Thumshirn , Christoph Hellwig , Sagi Grimberg , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, Jens Axboe Cc: Keith Busch Subject: [PATCH 1/5] blk-mq: add API to get hctx index from request Date: Thu, 28 Jun 2018 14:55:57 -0600 Message-Id: <20180628205601.13742-1-keith.busch@intel.com> X-Mailer: git-send-email 2.13.6 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Keith Busch --- block/blk-mq.c | 6 ++++++ include/linux/blk-mq.h | 1 + 2 files changed, 7 insertions(+) diff --git a/block/blk-mq.c b/block/blk-mq.c index b429d515b568..c6478833464d 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -466,6 +466,12 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, } EXPORT_SYMBOL_GPL(blk_mq_alloc_request_hctx); +unsigned int blk_mq_request_hctx_idx(struct request *rq) +{ + return blk_mq_map_queue(rq->q, rq->mq_ctx->cpu)->queue_num; +} +EXPORT_SYMBOL_GPL(blk_mq_request_hctx_idx); + static void __blk_mq_free_request(struct request *rq) { struct request_queue *q = rq->q; diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index e3147eb74222..af91b2d31a04 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -248,6 +248,7 @@ static inline u16 blk_mq_unique_tag_to_tag(u32 unique_tag) } +unsigned int blk_mq_request_hctx_idx(struct request *rq); int blk_mq_request_started(struct request *rq); void blk_mq_start_request(struct request *rq); void blk_mq_end_request(struct request *rq, blk_status_t error); -- 2.14.3