From: Damien Le Moal <dlemoal@kernel.org>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>,
dm-devel@lists.linux.dev, Mike Snitzer <snitzer@redhat.com>,
linux-nvme@lists.infradead.org, Keith Busch <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>
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 [thread overview]
Message-ID: <20240408014128.205141-5-dlemoal@kernel.org> (raw)
In-Reply-To: <20240408014128.205141-1-dlemoal@kernel.org>
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 <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Hans Holmberg <hans.holmberg@wdc.com>
Tested-by: Dennis Maisenbacher <dennis.maisenbacher@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
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)
{
--
2.44.0
next prev parent reply other threads:[~2024-04-08 1:41 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-08 1:41 [PATCH v7 00/28] Zone write plugging Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 01/28] block: Restore sector of flush requests Damien Le Moal
2024-04-08 15:42 ` Johannes Thumshirn
2024-04-08 1:41 ` [PATCH v7 02/28] block: Remove req_bio_endio() Damien Le Moal
2024-04-08 15:46 ` Johannes Thumshirn
2024-04-08 1:41 ` [PATCH v7 03/28] block: Introduce blk_zone_update_request_bio() Damien Le Moal
2024-04-08 15:47 ` Johannes Thumshirn
2024-04-08 1:41 ` Damien Le Moal [this message]
2024-04-08 15:50 ` [PATCH v7 04/28] block: Introduce bio_straddles_zones() and bio_offset_from_zone_start() Johannes Thumshirn
2024-04-08 1:41 ` [PATCH v7 05/28] block: Allow using bio_attempt_back_merge() internally Damien Le Moal
2024-04-08 15:51 ` Johannes Thumshirn
2024-04-08 1:41 ` [PATCH v7 06/28] block: Remember zone capacity when revalidating zones Damien Le Moal
2024-04-08 15:53 ` Johannes Thumshirn
2024-04-08 1:41 ` [PATCH v7 07/28] block: Introduce zone write plugging Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 08/28] block: Fake max open zones limit when there is no limit Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 09/28] block: Allow zero value of max_zone_append_sectors queue limit Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 10/28] block: Implement zone append emulation Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 11/28] block: Allow BIO-based drivers to use blk_revalidate_disk_zones() Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 12/28] dm: Use the block layer zone append emulation Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 13/28] scsi: sd: " Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 14/28] ublk_drv: Do not request ELEVATOR_F_ZBD_SEQ_WRITE elevator feature Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 15/28] null_blk: " Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 16/28] null_blk: Introduce zone_append_max_sectors attribute Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 17/28] null_blk: Introduce fua attribute Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 18/28] nvmet: zns: Do not reference the gendisk conv_zones_bitmap Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 19/28] block: Remove BLK_STS_ZONE_RESOURCE Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 20/28] block: Simplify blk_revalidate_disk_zones() interface Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 21/28] block: mq-deadline: Remove support for zone write locking Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 22/28] block: Remove elevator required features Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 23/28] block: Do not check zone type in blk_check_zone_append() Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 24/28] block: Move zone related debugfs attribute to blk-zoned.c Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 25/28] block: Replace zone_wlock debugfs entry with zone_wplugs entry Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 26/28] block: Remove zone write locking Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 27/28] block: Do not force select mq-deadline with CONFIG_BLK_DEV_ZONED Damien Le Moal
2024-04-08 1:41 ` [PATCH v7 28/28] block: Do not special-case plugging of zone write operations Damien Le Moal
2024-04-08 6:02 ` [PATCH v7 00/28] Zone write plugging Christoph Hellwig
2024-04-12 0:19 ` Damien Le Moal
2024-04-17 14:45 ` Jens Axboe
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