From patchwork Tue Apr 2 12:38:43 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: 13613861 X-Patchwork-Delegate: snitzer@redhat.com 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 733126E602; Tue, 2 Apr 2024 12:39:16 +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=1712061556; cv=none; b=Os6+vk/2qbpYqTa+KXmcxCs7FtZSKaV8THuGdfNa7m/cfN9xN6FwE+AZGDRioR8eVffXa7Wgrc/XN4DYy4xthwE9P7SGsF3/1WHuRq4POO0xcUgI61x6BWMCdcD/FMah7RJ6gSPt6IxZKMouGd8iftv+yttsj5Oy9T0O0TOYNa0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712061556; c=relaxed/simple; bh=jjiUilvd0iKnYt0AP2dJMfoR1ndfXit0U3Y/hv0duX0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=khsiXGULEDjlyaBHz22f4ErsWiCYSThf6tUULwGar3m0HX4Zrep9LT/V4BkVmhcrqnAECGcalh+cBhs/i85XBwiZYF2eFGL2KRvKLJ57DcIJlQgC4h3MNzuFmlbT7ECzyTTiAiGZM5syHw2cUuLa9yruTDaqLjPJZX1Yq3EWcJc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g6F4jUlR; 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="g6F4jUlR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED005C433C7; Tue, 2 Apr 2024 12:39:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712061556; bh=jjiUilvd0iKnYt0AP2dJMfoR1ndfXit0U3Y/hv0duX0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=g6F4jUlRWYHL+30frClE3iOp/DTSyRPKUjoaBos8cU/TVj5WpZVjeo0s7ZiGZ/gnK JPjbUH2R0CH9LKVXWsp0vAuwP2yC7fKX4P21/bYKOp1uRr+42coVTo9Jm+MYVLY2f8 ugwmxr7Qru9iez1ARNe0j+eeEbNTaPh+jJyx/7XhUSy7MKuJQLLsl42IpBMcyRWZpv tY4ZSI58eIogOFibd+6LVrtgPQCbCJQAQfH5MD0j05HmiMUSjT3Kcj65ETkpTCr9w8 IcvRe5TTxVTBwd4DNd1bq5FUTZslN92PH0PHCvShbkvwXtpMuKrNorVypxLLboZl66 P+i72jRvmMFGA== 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 v4 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Date: Tue, 2 Apr 2024 21:38:43 +0900 Message-ID: <20240402123907.512027-5-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240402123907.512027-1-dlemoal@kernel.org> References: <20240402123907.512027-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Implement the inline helper functions bio_straddles_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 offset of a BIO from the start sector of its target zone. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- include/linux/blkdev.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index c3e8f7cf96be..ec7bd7091467 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -853,6 +853,13 @@ 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_straddles_zones(struct bio *bio) +{ + return bio_sectors(bio) && + 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); @@ -1328,6 +1335,12 @@ 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) {