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authorSagi Grimberg <sagi@grimberg.me>2023-03-03 09:43:23 +0100
committerJens Axboe <axboe@kernel.dk>2023-03-08 00:40:52 +0100
commite33062213ff2f9151e0d125e1c00f524c2b7acfe (patch)
tree11bae833740bdffc1e61dedd01936aa5505917b9 /Documentation/ABI/stable
parentblock: fix wrong mode for blkdev_put() from disk_scan_partitions() (diff)
downloadlinux-e33062213ff2f9151e0d125e1c00f524c2b7acfe.tar.xz
linux-e33062213ff2f9151e0d125e1c00f524c2b7acfe.zip
docs: sysfs-block: document hidden sysfs entry
/sys/block/<disk>/hidden is undocumented. Document it. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20230303084323.228098-1-sagi@grimberg.me Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/ABI/stable')
-rw-r--r--Documentation/ABI/stable/sysfs-block9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index ac1e519272aa..282de3680367 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -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>