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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2018-11-30 14:36:24 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2018-12-16 19:53:06 -0700 |
| commit | f9824952ee1cd02ae1a74e35e0e8653f8a4db772 (patch) | |
| tree | e19b1ff205fa3d64994cd71b6a1ef1fcafe94f32 /Documentation/ABI | |
| parent | block: loop: check error using IS_ERR instead of IS_ERR_OR_NULL in loop_add() (diff) | |
| download | linux-dev-f9824952ee1cd02ae1a74e35e0e8653f8a4db772.tar.xz linux-dev-f9824952ee1cd02ae1a74e35e0e8653f8a4db772.zip | |
block: update sysfs documentation
Add the description of the zoned, nr_zones and chunk_sectors sysfs queue
attributes to Documentation/block/queue-sysfs.txt. The description of
the zoned and chunk_sector attributes are mostly copied from
ABI/testing/sysfs-block (added a typo fix). While at it, also fix a
typo in the description of the io_poll_delay attribute.
nr_zones description is also added to ABI/testing/sysfs-block and
contact email address updated for the zoned attribute.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index dea212db9df3..7710d4022b19 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -244,7 +244,7 @@ Description: What: /sys/block/<disk>/queue/zoned Date: September 2016 -Contact: Damien Le Moal <damien.lemoal@hgst.com> +Contact: Damien Le Moal <damien.lemoal@wdc.com> Description: zoned indicates if the device is a zoned block device and the zone model of the device if it is indeed zoned. @@ -259,6 +259,14 @@ Description: zone commands, they will be treated as regular block devices and zoned will report "none". +What: /sys/block/<disk>/queue/nr_zones +Date: November 2018 +Contact: Damien Le Moal <damien.lemoal@wdc.com> +Description: + nr_zones indicates the total number of zones of a zoned block + device ("host-aware" or "host-managed" zone model). For regular + block devices, the value is always 0. + What: /sys/block/<disk>/queue/chunk_sectors Date: September 2016 Contact: Hannes Reinecke <hare@suse.com> @@ -268,6 +276,6 @@ Description: indicates the size in 512B sectors of the RAID volume stripe segment. For a zoned block device, either host-aware or host-managed, chunk_sectors indicates the - size of 512B sectors of the zones of the device, with + size in 512B sectors of the zones of the device, with the eventual exception of the last zone of the device which may be smaller. |