From patchwork Mon Apr 8 01:41:04 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: 787125 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 A9AF9A40; Mon, 8 Apr 2024 01:41:38 +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=1712540498; cv=none; b=GRRCNXCmuNi1fFsA1YekV4jn8U7pXrnYQ5xuggm/1sJb6liBLFmglENnjAlvGADZjK8JhAs3+YWD+AkNgGxoc7E9ScQ0pc2/XknBXW8ferQOwtj5nOmzDjbVixKHjQgaaLltLldpDGsLcWjI/QtW/MxrGmzZ0z6CykaMWdS3Apk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712540498; c=relaxed/simple; bh=cUwQkF213nGEUnN+95fFuqIB+TNqvUJ+tiTrGtsuV4Q=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=B1iGF1UOwfROu1PgXvlmCzs3+RcZEjqstqxFByJeftve3igI9t9Hh2NZPyS+AKqHFpjpluAAI7sRGTyCYIPsF78UdtACYpZkJ5iFPScMP6OC0d1KKg8fupHkD8XqjuOeJ+omEO7gqj2RIOpq5d33btnitL0rxrheBeus4gE0XlY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cC0W2cVJ; 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="cC0W2cVJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EA307C433F1; Mon, 8 Apr 2024 01:41:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712540498; bh=cUwQkF213nGEUnN+95fFuqIB+TNqvUJ+tiTrGtsuV4Q=; h=From:To:Subject:Date:In-Reply-To:References:From; b=cC0W2cVJKzH3Bt1t+2mVAEKbDWzlSMJU4F0g7pF4+ziNh2NBKjqGN1E35Y3txdyFw yacBa/bMTaCJ9wqVPacuxojMgHbWRWkuR2Xl/bFr4urQ5QTs7YQDpmvgcC1bqJFPTC K5faWFRAO7eST6hUGiNxVhYyb6lPa3OekJb7ZVwQVhsKKxZ55uFCjVU0jXTZrbV9Em NNyO6k/9w7w16c4dcy0BqKDu8ht/gTDfhQeD8hczDIqIuRihRmdPLCvWhvLu0imqM5 RK8Z9BtHPU/sJ2AArRTVnvgx+R0CfQN3p/ZrNPLLUqVXsoXIoF0FXSRt2ai86qab5p PSK3zRKpSwMKw== 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 v7 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Date: Mon, 8 Apr 2024 10:41:04 +0900 Message-ID: <20240408014128.205141-5-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408014128.205141-1-dlemoal@kernel.org> References: <20240408014128.205141-1-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 Tested-by: Dennis Maisenbacher Reviewed-by: Martin K. Petersen --- include/linux/blkdev.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 172c91879999..0380b7e6f818 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) {