From patchwork Fri Apr 5 04:41:43 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: 13618514 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 9892D22F17; Fri, 5 Apr 2024 04:42:15 +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=1712292135; cv=none; b=RKIZfQpXglfIrIYrjTxjpmjpgnYokNs2m0ipClFkw2Srm2ZEgUJTdC0chBXGGDrk+mnHJ8rMfubFnj6uWXI5yJHNkVe6Ru+0Sb8LTEpLfb6XdV6q4l82881lnwAS5+TNxGl7bhOndidm95sIVZbxy60nAeP1yScUnq+Pp7VUBMw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712292135; c=relaxed/simple; bh=7qLFKHmMqXCPhSR7cz1IzscSua25WxaMhOqOUOURAX0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CKdHD7fLRfDP4IrNMxn4bH8pnikIRHAwqW4fETS/1B2xyS13yvufZb/Srk1kYMCY7jnfL0Qfouj9aJWZtFcKAivXChJg7Npph0cGLoI7RlW9WFtLfBDg5edGamrJ8t9ArLu810OeLSLkSITxu8fnOmTr+lZ0HyApPv//SplZIl0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fjGtxkbY; 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="fjGtxkbY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5233FC433C7; Fri, 5 Apr 2024 04:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712292135; bh=7qLFKHmMqXCPhSR7cz1IzscSua25WxaMhOqOUOURAX0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=fjGtxkbYkTG4F8M3FVBPb6ax8unAeIXDLJhm6OZCOnpLzNa4TNgpKooN3HJaLCG7A ojb9TXtlT+8mFzaLKjbpf2Q+UqDc8vNbh8UqkCOfAypcI1wu3J9x44Qu/54DJZDPrV h61pCc1Cgc0VxPfHKEaNjxugSUOeKjlQYgyLLFIjGB1+YLEhr6cbEyBOrkal/kphOl 1wUAfVX23sfFf07VbcdUn9ega97+RwNmKQcxbeFFrK+at4/JBTlaOIUXVwiR6IfMHG M2k0tzsHVfsUG6PlnwSUJHsTmpm9CrRv1byKISklexbasa/dlcwMDfmOFAxTOkkLRr Ssej2jp4eObPg== 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 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Date: Fri, 5 Apr 2024 13:41:43 +0900 Message-ID: <20240405044207.1123462-5-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 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 Tested-by: Hans Holmberg --- 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) {