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block, documentation: Sort queue sysfs attribute names alphabetically 

Commit f9824952ee ("block: update sysfs documentation") # v5.0 broke the
alphabetical order of the sysfs attribute names. List queue sysfs attribute
names alphabetically.

Cc: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
alistair/sunxi64-5.4-dsi
Bart Van Assche 2019-06-28 13:07:43 -07:00 committed by Jens Axboe
parent 152c7776b9
commit 6728ac3396
1 changed files with 15 additions and 15 deletions
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30
Documentation/block/queue-sysfs.txt
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@ -14,6 +14,15 @@ add_random (RW)
This file allows to turn off the disk entropy contribution. Default This file allows to turn off the disk entropy contribution. Default
value of this file is '1'(on). value of this file is '1'(on).
chunk_sectors (RO)
------------------
This has different meaning depending on the type of the block device.
For a RAID device (dm-raid), chunk_sectors 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 in 512B sectors of the zones
of the device, with the eventual exception of the last zone of the device which
may be smaller.
dax (RO) dax (RO)
-------- --------
This file indicates whether the device supports Direct Access (DAX), This file indicates whether the device supports Direct Access (DAX),
@ -132,6 +141,12 @@ per-block-cgroup request pool. IOW, if there are N block cgroups,
each request queue may have up to N request pools, each independently each request queue may have up to N request pools, each independently
regulated by nr_requests. regulated by nr_requests.
nr_zones (RO)
-------------
For zoned block devices (zoned attribute indicating "host-managed" or
"host-aware"), this indicates the total number of zones of the device.
This is always 0 for regular block devices.
optimal_io_size (RO) optimal_io_size (RO)
-------------------- --------------------
This is the optimal IO size reported by the device. This is the optimal IO size reported by the device.
@ -213,19 +228,4 @@ devices are described in the ZBC (Zoned Block Commands) and ZAC
do not support zone commands, they will be treated as regular block devices do not support zone commands, they will be treated as regular block devices
and zoned will report "none". and zoned will report "none".
nr_zones (RO)
-------------
For zoned block devices (zoned attribute indicating "host-managed" or
"host-aware"), this indicates the total number of zones of the device.
This is always 0 for regular block devices.
chunk_sectors (RO)
------------------
This has different meaning depending on the type of the block device.
For a RAID device (dm-raid), chunk_sectors 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 in 512B sectors of the zones
of the device, with the eventual exception of the last zone of the device which
may be smaller.
Jens Axboe <jens.axboe@oracle.com>, February 2009 Jens Axboe <jens.axboe@oracle.com>, February 2009