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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 022AAC10F09 for ; Fri, 8 Mar 2019 17:39:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC91B208E4 for ; Fri, 8 Mar 2019 17:39:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726544AbfCHRjg (ORCPT ); Fri, 8 Mar 2019 12:39:36 -0500 Received: from mga01.intel.com ([192.55.52.88]:33276 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726581AbfCHRjf (ORCPT ); Fri, 8 Mar 2019 12:39:35 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Mar 2019 09:39:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,456,1544515200"; d="scan'208";a="132430643" Received: from unknown (HELO localhost.lm.intel.com) ([10.232.112.69]) by orsmga003.jf.intel.com with ESMTP; 08 Mar 2019 09:39:35 -0800 From: Keith Busch To: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, Jens Axboe Cc: Christoph Hellwig , Sagi Grimberg , Keith Busch Subject: [PATCH 2/5] blk-mq: Export iterating queue requests Date: Fri, 8 Mar 2019 10:40:03 -0700 Message-Id: <20190308174006.5032-2-keith.busch@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20190308174006.5032-1-keith.busch@intel.com> References: <20190308174006.5032-1-keith.busch@intel.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org A driver may need to iterate a particular queue's tagged request rather than the whole tagset. Signed-off-by: Keith Busch --- block/blk-mq-tag.c | 1 + block/blk-mq-tag.h | 2 -- include/linux/blk-mq.h | 2 ++ 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index a4931fc7be8a..a4ba91b332b0 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -407,6 +407,7 @@ void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, } blk_queue_exit(q); } +EXPORT_SYMBOL(blk_mq_queue_tag_busy_iter); static int bt_alloc(struct sbitmap_queue *bt, unsigned int depth, bool round_robin, int node) diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 61deab0b5a5a..5af7ff94b400 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -33,8 +33,6 @@ extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx, struct blk_mq_tags **tags, unsigned int depth, bool can_grow); extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool); -void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, - void *priv); static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt, struct blk_mq_hw_ctx *hctx) diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index b0c814bcc7e3..a64b3fdce0b0 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -321,6 +321,8 @@ bool blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async); void blk_mq_run_hw_queues(struct request_queue *q, bool async); void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset, busy_tag_iter_fn *fn, void *priv); +void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn, + void *priv); void blk_mq_freeze_queue(struct request_queue *q); void blk_mq_unfreeze_queue(struct request_queue *q); void blk_freeze_queue_start(struct request_queue *q); -- 2.14.4