From patchwork Fri Apr 5 04:41:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 786682 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 175CD24B26; Fri, 5 Apr 2024 04:42:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712292137; cv=none; b=r8KYRG0sv6pGJ29tjTioFI49CAXzpK+A+BwS3K21kTTqE6ZKwx7inkbNqr3OcxXq2a8t63lFpjxCwsHoW/7iiJNbFEi7XIFSzeotteVDOIrc8Y7MQsdHqlEsN9pmanHghuqabxPT29mWK786+hntB5YFz49XUDF/lTG9SM3x87E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712292137; c=relaxed/simple; bh=Psfl/jmWSX5gl8cykLhLSXQA1aPpWSzL1AVZwTM+VIc=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NMDN8Hqf8NKSFNQgAoOvJz178ZQDqKinPO7Oz9z+meEjEOxWXuTqQW17Hb1c13zkdCHaFKtGB2jb4gDajHMg00+2l9Y/bA7LXJH7yEVoc5FANulD9WSVFUsDS5L863H7wLCkapeO4ZlZM6Z13LtVqQQcokxLCFjPqZAcAqovZrU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HUL8/poB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HUL8/poB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5561C433B2; Fri, 5 Apr 2024 04:42:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712292136; bh=Psfl/jmWSX5gl8cykLhLSXQA1aPpWSzL1AVZwTM+VIc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=HUL8/poB3QOW7waEYho9vvystJ0O3nU3TAUP8SbPmpQ1d+udWUTMvZvXGO9bU0Xf+ nO8CMRMNAKFS0+WeB/QUqbbi8L9yXRhsOTl1SuAn/gu7WA1FrTcREfaujTQxjSwKir dVidztx/46eTtRqPWG1biOtZ3ND6zyfKNxNEW8+bm8F8r8MDekN61ytQq77fijeHDR rGw6itKrcMLhlVdDdXkZaSSxoVwfwud0mvogp6JFOqkZGAJklozJN8vkwYHW337n0X bZx5Tahj61lHmGtU1+L2S4HD4bZVc4+oqpt4WGJ6SwFm36TBu1nSgtrhBvkd6TKECE E8MDgQ6f8AwUQ== From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe , linux-scsi@vger.kernel.org, "Martin K . Petersen" , dm-devel@lists.linux.dev, Mike Snitzer , linux-nvme@lists.infradead.org, Keith Busch , Christoph Hellwig Subject: [PATCH v6 05/28] block: Allow using bio_attempt_back_merge() internally Date: Fri, 5 Apr 2024 13:41:44 +0900 Message-ID: <20240405044207.1123462-6-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240405044207.1123462-1-dlemoal@kernel.org> References: <20240405044207.1123462-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Remove "static" from the definition of bio_attempt_back_merge() and declare this function in block/blk.h to allow using it internally from other block layer files. The definition of enum bio_merge_status is also moved to block/blk.h. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Bart Van Assche Reviewed-by: Christoph Hellwig Tested-by: Hans Holmberg --- block/blk-merge.c | 8 +------- block/blk.h | 8 ++++++++ 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/block/blk-merge.c b/block/blk-merge.c index 4e3483a16b75..3363b1321908 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -972,13 +972,7 @@ static void blk_account_io_merge_bio(struct request *req) part_stat_unlock(); } -enum bio_merge_status { - BIO_MERGE_OK, - BIO_MERGE_NONE, - BIO_MERGE_FAILED, -}; - -static enum bio_merge_status bio_attempt_back_merge(struct request *req, +enum bio_merge_status bio_attempt_back_merge(struct request *req, struct bio *bio, unsigned int nr_segs) { const blk_opf_t ff = bio_failfast(bio); diff --git a/block/blk.h b/block/blk.h index 17786052f32d..bca50a9510c8 100644 --- a/block/blk.h +++ b/block/blk.h @@ -269,6 +269,14 @@ static inline void bio_integrity_free(struct bio *bio) unsigned long blk_rq_timeout(unsigned long timeout); void blk_add_timer(struct request *req); +enum bio_merge_status { + BIO_MERGE_OK, + BIO_MERGE_NONE, + BIO_MERGE_FAILED, +}; + +enum bio_merge_status bio_attempt_back_merge(struct request *req, + struct bio *bio, unsigned int nr_segs); bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio, unsigned int nr_segs); bool blk_bio_list_merge(struct request_queue *q, struct list_head *list,