From patchwork Fri Feb 2 07:30:41 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: 769426 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 42C1D18030; Fri, 2 Feb 2024 07:31:11 +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=1706859072; cv=none; b=lRvpzeUrpIJg6VQAVHPLnxEg8C789lOfVdqe1vFUkr8IHCJjZiQMv+UDfmyZpMTbm0hYqMr+SCETpzCMEntrYFg6lcO7dXd/Kc272BSXOsBYCI7WLqG3vw7Uy8fmq+72ECaD3XO+2sYbM2eZJeG1opqiNdzci5+81O4UJKfdb0Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706859072; c=relaxed/simple; bh=ghDCfu0r4bUE5dahnx+I96C3hoT+rAgiYNOjnZuM1dg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ipy/PyCg/JgZXdd7/X/dvYmgnSgckzeTrljX0Xsnwfivm91D9v5kp+b9ooPhyhPEOSh6y778/D0fXGA5mLZA9tJ2LxYkhZZ4yWjAnJiFXKueBsBL1OQtZVwBVmNBURd/yxKAg/lURm4h1JaHEPTTaNZQASy/yAbIPytLRQ6Sqxs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sVzcmedN; 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="sVzcmedN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77E31C433C7; Fri, 2 Feb 2024 07:31:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706859071; bh=ghDCfu0r4bUE5dahnx+I96C3hoT+rAgiYNOjnZuM1dg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sVzcmedNTSJ15b8qeNFrG+Gsy7QXw1bU/wreSMEfA4/VK9aBYP1tNyhfYWsD/LPHT MGrt/JdzSGsaqu6STzjksGzhyVNMEN9OJxfujQLCkOIywHxkUTxTPOZ5BWHdG12N/c x1kbXgwsJrWJoVarjRI6k9nLRbXkODEYvqBn2BVdz38zv++KDEqoNUX8hl4lYXaRSz EHw0EvgTGo0z6+TR9fs1srC4pln24ewpSMp9wnOEbEKPbSsBHcnGl/cqGdSvMMJrVc /F8JNdqohgJk6gjOqW7gSQL76x+3eu/OVZvYYVLf7uQi1hxePpCIkp2Iupqxw01UGh oJAcJa6aW2n6A== 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 03/26] block: Introduce bio_straddle_zones() and bio_offset_from_zone_start() Date: Fri, 2 Feb 2024 16:30:41 +0900 Message-ID: <20240202073104.2418230-4-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-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Implement the inline helper functions bio_straddle_zones() and bio_offset_from_zone_start() to respectively test if a BIO crosses a zone boundary (the start sector and last sector belong to different zones) and to obtain the oofset from a zone starting sector of a BIO. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- include/linux/blkdev.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index d7cac3de65b3..0bb897f0501c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -845,6 +845,12 @@ static inline unsigned int bio_zone_no(struct bio *bio) return disk_zone_no(bio->bi_bdev->bd_disk, bio->bi_iter.bi_sector); } +static inline bool bio_straddle_zones(struct bio *bio) +{ + return bio_zone_no(bio) != + disk_zone_no(bio->bi_bdev->bd_disk, bio_end_sector(bio) - 1); +} + static inline unsigned int bio_zone_is_seq(struct bio *bio) { return disk_zone_is_seq(bio->bi_bdev->bd_disk, bio->bi_iter.bi_sector); @@ -1297,6 +1303,12 @@ static inline sector_t bdev_offset_from_zone_start(struct block_device *bdev, return sector & (bdev_zone_sectors(bdev) - 1); } +static inline sector_t bio_offset_from_zone_start(struct bio *bio) +{ + return bdev_offset_from_zone_start(bio->bi_bdev, + bio->bi_iter.bi_sector); +} + static inline bool bdev_is_zone_start(struct block_device *bdev, sector_t sector) {