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authorBart Van Assche <bvanassche@acm.org>2019-06-28 16:07:43 -0400
committerJens Axboe <axboe@kernel.dk>2019-06-29 11:38:02 -0400
commit6728ac3396265184abe93f18b32aca329981e5ce (patch)
tree2a080b48ffa15aca48b1b41b0b96a5e5eb8f8610 /Documentation/block
parent152c7776b9442f2f094da7d81e5a8f345dedb397 (diff)
block, documentation: Sort queue sysfs attribute names alphabetically
Commit f9824952ee1c ("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>
Diffstat (limited to 'Documentation/block')
-rw-r--r--Documentation/block/queue-sysfs.txt30
1 files changed, 15 insertions, 15 deletions
diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt
index 3eaf86806621..f6da2efe2105 100644
--- a/Documentation/block/queue-sysfs.txt
+++ b/Documentation/block/queue-sysfs.txt
@@ -14,6 +14,15 @@ add_random (RW)
14This file allows to turn off the disk entropy contribution. Default 14This file allows to turn off the disk entropy contribution. Default
15value of this file is '1'(on). 15value of this file is '1'(on).
16 16
17chunk_sectors (RO)
18------------------
19This has different meaning depending on the type of the block device.
20For a RAID device (dm-raid), chunk_sectors indicates the size in 512B sectors
21of the RAID volume stripe segment. For a zoned block device, either host-aware
22or host-managed, chunk_sectors indicates the size in 512B sectors of the zones
23of the device, with the eventual exception of the last zone of the device which
24may be smaller.
25
17dax (RO) 26dax (RO)
18-------- 27--------
19This file indicates whether the device supports Direct Access (DAX), 28This 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,
132each request queue may have up to N request pools, each independently 141each request queue may have up to N request pools, each independently
133regulated by nr_requests. 142regulated by nr_requests.
134 143
144nr_zones (RO)
145-------------
146For zoned block devices (zoned attribute indicating "host-managed" or
147"host-aware"), this indicates the total number of zones of the device.
148This is always 0 for regular block devices.
149
135optimal_io_size (RO) 150optimal_io_size (RO)
136-------------------- 151--------------------
137This is the optimal IO size reported by the device. 152This is the optimal IO size reported by the device.
@@ -213,19 +228,4 @@ devices are described in the ZBC (Zoned Block Commands) and ZAC
213do not support zone commands, they will be treated as regular block devices 228do not support zone commands, they will be treated as regular block devices
214and zoned will report "none". 229and zoned will report "none".
215 230
216nr_zones (RO)
217-------------
218For zoned block devices (zoned attribute indicating "host-managed" or
219"host-aware"), this indicates the total number of zones of the device.
220This is always 0 for regular block devices.
221
222chunk_sectors (RO)
223------------------
224This has different meaning depending on the type of the block device.
225For a RAID device (dm-raid), chunk_sectors indicates the size in 512B sectors
226of the RAID volume stripe segment. For a zoned block device, either host-aware
227or host-managed, chunk_sectors indicates the size in 512B sectors of the zones
228of the device, with the eventual exception of the last zone of the device which
229may be smaller.
230
231Jens Axboe <jens.axboe@oracle.com>, February 2009 231Jens Axboe <jens.axboe@oracle.com>, February 2009