From patchwork Mon Mar 25 04:44:29 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: 782483 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 AFD9F1C3226; Mon, 25 Mar 2024 04:45:04 +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=1711341904; cv=none; b=iCb+s6DYur00MihJ3t0LeOsNh61GoVeJFAHn9ZVcdPQimPEG6hcxmlG/wI9oK0wk7qIF4OG6raYCARrukrZfiUW20YGegfF7SRawK/bMxFW2mZhn1lyzP0AymQHJXEP7A4qq/nAIWbIsQy/Via6e7RWAgQgRqDG6SuEfEbu/+ps= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711341904; c=relaxed/simple; bh=CkPyHDMXj/emYxOVYSrpv0KfBhMWGJbbF1G8OvaM55I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Lum0Ws8A5pmx9VK0QKjgtTDUKnvasQwSgda7tSuZxFOoSD9R0D9EZhQD9f//UHn8J+HQZkAGGVAT5jPZiN/egj3FpLZBlDDtaoMWpwgNksGyvw/ETMRlqLMJSP5NLx24Hcu5dmHAjs+FPma99GE0q8MN3xJkdYH7iyIAmkmGNd4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EdHdyJVl; 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="EdHdyJVl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1522C433C7; Mon, 25 Mar 2024 04:45:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711341904; bh=CkPyHDMXj/emYxOVYSrpv0KfBhMWGJbbF1G8OvaM55I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EdHdyJVlP6K4jK85XhV1PdCaIVxQPBWpX0hQ+Fa+jGAWKdV0iJI8dUjgyOcAyxCNG nmTCgrwyePSr3yr3PYc44Tymtt2SCO7cht9UjgC6i3IK9wyEvF8Wg9Mksy0sBZ3mvq PktNjtRYxoq8qprIrpvH7AHZO4FDkRyaji6RIKgfr6PwAtLG4ILbXchZjhdtCvAByH Sy1m7SwxpQ1+CQENRRTCM+Dpuawu+y/28rkqprOVuQV2Okwb4NY7ga9vIiXWa8/ghw wmtKBD8zgGi/pBDILOE0bwgotFiniQa2+MtbHSj4ac9QivGG1auQvdby+WfK5nnMOe cMznGkTGkdwOQ== 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 v2 05/28] block: Allow using bio_attempt_back_merge() internally Date: Mon, 25 Mar 2024 13:44:29 +0900 Message-ID: <20240325044452.3125418-6-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240325044452.3125418-1-dlemoal@kernel.org> References: <20240325044452.3125418-1-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 --- 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 2a06fd33039d..88367c10c8bc 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 a12cde1d45de..f2a521b72f9d 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,