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authorDamien Le Moal <damien.lemoal@wdc.com>2018-11-30 06:36:24 +0100
committerJens Axboe <axboe@kernel.dk>2018-12-17 03:53:06 +0100
commitf9824952ee1cd02ae1a74e35e0e8653f8a4db772 (patch)
treee19b1ff205fa3d64994cd71b6a1ef1fcafe94f32 /Documentation/ABI
parentblock: loop: check error using IS_ERR instead of IS_ERR_OR_NULL in loop_add() (diff)
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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-block12
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.