From patchwork Fri Feb 2 07:30:43 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: 13542265 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 E7F1317998; Fri, 2 Feb 2024 07:31:14 +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=1706859075; cv=none; b=XyVTJJJaRiIvB6w5qcha06CVgEvfyj6NMvmZ0B3cyAFfOGeEq7CmOz0pV4Vh6vVbMMzJkzuQEP3XVj8ArDEIdmAz0JoNm7JaMC3mmf9ou5COseu6+egrF4mtFZyCkKBYO/W0zZk3WG8yltAOYOAOtPfn+nQ9B12iOfaqjBbC6Yw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706859075; c=relaxed/simple; bh=PKmt4teAnQCPFNGrbo7NJPs+GbxyF6dMFp0LwfNph5E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hTh62oWRmz6Vn/3MCG5kf+D06QEOcuiFzW73ezOQYozMBpV2ULsGaxmn9rZV1sDIPARiRwem8dVJH4Hz8dEyBGr0YCbY56z/S73F4kmYdlepvHiGnZughik5pykMmrd17iQmaiZTkTZNiBF90KENu78WRon+J5j8dA/pmi1EUbY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eX2Vtkjd; 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="eX2Vtkjd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5486CC433C7; Fri, 2 Feb 2024 07:31:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706859074; bh=PKmt4teAnQCPFNGrbo7NJPs+GbxyF6dMFp0LwfNph5E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eX2Vtkjd6JpF+BLXgL3Gd5tPvW7OEQg9sZ+HdVaXyp2AoiwsDRNt6TVMgVrrEp37X uWP2vOlIfqOOPp4Nb0m4ogy/Bm+lmrg0X8rlfcViVQPxU9NvtNSvbko8ber8oJpqof e9F0JfNhLr+x59CJY/6M/OxyzdoEFO8yci2din4q7YwofZh2TgVwSdDDj1gqjRDmwr LQyiMtJMRxBU7D/S+YoNCepneTCqlS3nXz082cVCMkHNFgc/MfPrZxk++1/+ADmBYO CQpgVA8kpIbnfU9d1g2nJk4hmI++gn7FDb+Zqle+pt4E/4uAvG5tphaoXCAAynz7Rz gFHW/AghWoUGg== 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 Cc: Christoph Hellwig Subject: [PATCH 05/26] block: Allow using bio_attempt_back_merge() internally Date: Fri, 2 Feb 2024 16:30:43 +0900 Message-ID: <20240202073104.2418230-6-dlemoal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240202073104.2418230-1-dlemoal@kernel.org> References: <20240202073104.2418230-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Remove the static definition of bio_attempt_back_merge() to allow using this function internally from other block layer files. Add the definition of enum bio_merge_status and the declaration of bio_attempt_back_merge() to block/blk.h. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- 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 2d470cf2173e..a1ef61b03e31 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -964,13 +964,7 @@ 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 23f76b452e70..5180e103ed9c 100644 --- a/block/blk.h +++ b/block/blk.h @@ -256,6 +256,14 @@ 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,