Commit e3306221 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Jens Axboe
Browse files

docs: sysfs-block: document hidden sysfs entry 



/sys/block/<disk>/hidden is undocumented. Document it.

Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarChaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20230303084323.228098-1-sagi@grimberg.me


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 428913bc

Documentation/ABI/stable/sysfs-block

+9 −0
Original line number Diff line number Diff line
@@ -705,6 +705,15 @@ Description: 
		zoned will report "none".





What:		/sys/block/<disk>/hidden

Date:		March 2023

Contact:	linux-block@vger.kernel.org

Description:

		[RO] the block device is hidden. it doesn’t produce events, and

		can’t be opened from userspace or using blkdev_get*.

		Used for the underlying components of multipath devices.





What:		/sys/block/<disk>/stat

Date:		February 2008

Contact:	Jerome Marchand <jmarchan@redhat.com>