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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 CBDDDC4361B for ; Wed, 9 Dec 2020 05:31:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 919AE23B4B for ; Wed, 9 Dec 2020 05:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726549AbgLIFbb (ORCPT ); Wed, 9 Dec 2020 00:31:31 -0500 Received: from mail-pf1-f196.google.com ([209.85.210.196]:41787 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727672AbgLIFa4 (ORCPT ); Wed, 9 Dec 2020 00:30:56 -0500 Received: by mail-pf1-f196.google.com with SMTP id t8so268344pfg.8; Tue, 08 Dec 2020 21:30:41 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nFmtmZdr7QvhoztzhUsC5VP6e3avPq/SnCUsVV2mp1g=; b=Fv/yoCxThR9DEbwfX77omHIKXZpj8B+Anah5EChSU2nS+te1hLlhOKE5VGfq+J442m 5Ox9yNzK6FKoBq/O0HwrQP1+n+d8BfSMQwGBwQ3+rGLku1Yu5OtP8hRI5ONtw5zNlfL5 murTg+T47ioN6odTXbCAhCAvtoSybCCDchemlLGuLxlEHbEXfDtJk6RjgGbG5OuxgbNX 9nC2rzi7cpI25vx3RgBZmQ2hCHE083Dh8I7hlBJ+CppNMZJWCHd9LaZRAJQsfAwJtyY0 dFIKgQLGcRm5U0PS0827Em3LyB3vdLaT5buAaTL0xpDKqv8BBvMY+4lL1KV38XoLAOfg E3Gw== X-Gm-Message-State: AOAM531zQdhgoeRlZqNpX4fQMhwgBsFfDeNHY1Uh6xmQ1rFjaj4I6Aci XgQKUuMbEktyp9f+3QU4nv8= X-Google-Smtp-Source: ABdhPJxX823LK5SYmo1G2LzMHNu2BNwxtA5IqJiqV4t6CA/x5y55nRI6UqL3ILbCmjww2yCO5OeO0w== X-Received: by 2002:a63:1616:: with SMTP id w22mr503480pgl.13.1607491815526; Tue, 08 Dec 2020 21:30:15 -0800 (PST) Received: from asus.hsd1.ca.comcast.net (c-73-241-217-19.hsd1.ca.comcast.net. [73.241.217.19]) by smtp.gmail.com with ESMTPSA id 77sm753097pfv.16.2020.12.08.21.30.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Dec 2020 21:30:14 -0800 (PST) From: Bart Van Assche To: "Martin K . Petersen" Cc: "James E . J . Bottomley" , Jens Axboe , Christoph Hellwig , Hannes Reinecke , Ming Lei , linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, Bart Van Assche , Can Guo , Stanley Chu , Alan Stern , "Rafael J . Wysocki" , Martin Kepplinger Subject: [PATCH v5 7/8] block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT Date: Tue, 8 Dec 2020 21:29:50 -0800 Message-Id: <20201209052951.16136-8-bvanassche@acm.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201209052951.16136-1-bvanassche@acm.org> References: <20201209052951.16136-1-bvanassche@acm.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Remove flag RQF_PREEMPT and BLK_MQ_REQ_PREEMPT since these are no longer used by any kernel code. Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Jens Axboe Cc: Can Guo Cc: Stanley Chu Cc: Alan Stern Cc: Ming Lei Cc: Rafael J. Wysocki Cc: Martin Kepplinger Signed-off-by: Bart Van Assche --- block/blk-core.c | 7 +++---- block/blk-mq-debugfs.c | 1 - block/blk-mq.c | 2 -- include/linux/blk-mq.h | 2 -- include/linux/blkdev.h | 6 +----- 5 files changed, 4 insertions(+), 14 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 10696f9fb6ac..a00bce9f46d8 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -424,11 +424,11 @@ EXPORT_SYMBOL(blk_cleanup_queue); /** * blk_queue_enter() - try to increase q->q_usage_counter * @q: request queue pointer - * @flags: BLK_MQ_REQ_NOWAIT, BLK_MQ_REQ_PM and/or BLK_MQ_REQ_PREEMPT + * @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PM */ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags) { - const bool pm = flags & (BLK_MQ_REQ_PM | BLK_MQ_REQ_PREEMPT); + const bool pm = flags & BLK_MQ_REQ_PM; while (true) { bool success = false; @@ -630,8 +630,7 @@ struct request *blk_get_request(struct request_queue *q, unsigned int op, struct request *req; WARN_ON_ONCE(op & REQ_NOWAIT); - WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM | - BLK_MQ_REQ_PREEMPT)); + WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM)); req = blk_mq_alloc_request(q, op, flags); if (!IS_ERR(req) && q->mq_ops->initialize_rq_fn) diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 3094542e12ae..9336a6f8d6ef 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -297,7 +297,6 @@ static const char *const rqf_name[] = { RQF_NAME(MIXED_MERGE), RQF_NAME(MQ_INFLIGHT), RQF_NAME(DONTPREP), - RQF_NAME(PREEMPT), RQF_NAME(FAILED), RQF_NAME(QUIET), RQF_NAME(ELVPRIV), diff --git a/block/blk-mq.c b/block/blk-mq.c index b5880a1fb38d..d50504888b68 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -294,8 +294,6 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data, rq->cmd_flags = data->cmd_flags; if (data->flags & BLK_MQ_REQ_PM) rq->rq_flags |= RQF_PM; - if (data->flags & BLK_MQ_REQ_PREEMPT) - rq->rq_flags |= RQF_PREEMPT; if (blk_queue_io_stat(data->q)) rq->rq_flags |= RQF_IO_STAT; INIT_LIST_HEAD(&rq->queuelist); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index c00e856c6fb1..88af1df94308 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -446,8 +446,6 @@ enum { BLK_MQ_REQ_RESERVED = (__force blk_mq_req_flags_t)(1 << 1), /* set RQF_PM */ BLK_MQ_REQ_PM = (__force blk_mq_req_flags_t)(1 << 2), - /* set RQF_PREEMPT */ - BLK_MQ_REQ_PREEMPT = (__force blk_mq_req_flags_t)(1 << 3), }; struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op, diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 639cae2c158b..7d4b746f7e6a 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -79,9 +79,6 @@ typedef __u32 __bitwise req_flags_t; #define RQF_MQ_INFLIGHT ((__force req_flags_t)(1 << 6)) /* don't call prep for this one */ #define RQF_DONTPREP ((__force req_flags_t)(1 << 7)) -/* set for "ide_preempt" requests and also for requests for which the SCSI - "quiesce" state must be ignored. */ -#define RQF_PREEMPT ((__force req_flags_t)(1 << 8)) /* vaguely specified driver internal error. Ignored by the block layer */ #define RQF_FAILED ((__force req_flags_t)(1 << 10)) /* don't warn about errors */ @@ -430,8 +427,7 @@ struct request_queue { unsigned long queue_flags; /* * Number of contexts that have called blk_set_pm_only(). If this - * counter is above zero then only RQF_PM and RQF_PREEMPT requests are - * processed. + * counter is above zero then only RQF_PM requests are processed. */ atomic_t pm_only;