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| author | Hannes Reinecke <hare@suse.de> | 2016-10-18 15:40:33 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-10-18 10:05:40 -0600 |
| commit | 6a0cb1bc106fc07ce0443303bcdb7f7da5131e5c (patch) | |
| tree | e5c93c3d58ff01ca1d825805cb643da04a46d8c6 /block/Kconfig | |
| parent | 2d253440b5afb128d22ccdae812dde9ba77a2cca (diff) | |
| download | lwn-6a0cb1bc106fc07ce0443303bcdb7f7da5131e5c.tar.gz lwn-6a0cb1bc106fc07ce0443303bcdb7f7da5131e5c.zip | |
block: Implement support for zoned block devices
Implement zoned block device zone information reporting and reset.
Zone information are reported as struct blk_zone. This implementation
does not differentiate between host-aware and host-managed device
models and is valid for both. Two functions are provided:
blkdev_report_zones for discovering the zone configuration of a
zoned block device, and blkdev_reset_zones for resetting the write
pointer of sequential zones. The helper function blk_queue_zone_size
and bdev_zone_size are also provided for, as the name suggest,
obtaining the zone size (in 512B sectors) of the zones of the device.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[Damien: * Removed the zone cache
* Implement report zones operation based on earlier proposal
by Shaun Tancheff <shaun.tancheff@seagate.com>]
Signed-off-by: Damien Le Moal <damien.lemoal@hgst.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Tested-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/Kconfig')
| -rw-r--r-- | block/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/Kconfig b/block/Kconfig index 1d4d624492fc..6b0ad08f0677 100644 --- a/block/Kconfig +++ b/block/Kconfig @@ -89,6 +89,14 @@ config BLK_DEV_INTEGRITY T10/SCSI Data Integrity Field or the T13/ATA External Path Protection. If in doubt, say N. +config BLK_DEV_ZONED + bool "Zoned block device support" + ---help--- + Block layer zoned block device support. This option enables + support for ZAC/ZBC host-managed and host-aware zoned block devices. + + Say yes here if you have a ZAC or ZBC storage device. + config BLK_DEV_THROTTLING bool "Block layer bio throttling support" depends on BLK_CGROUP=y |