mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 08:08:54 +00:00
Code Issues Releases Wiki Activity

Documentation/ABI/rnbd-clt: session name is appended to the device path

Browse source 
When mapping a device,
/sys/devices/virtual/rnbd-client/ctl/devices/<device_id> was created.
But we found out that it had a problem when mapping the same file
on different servers. So we append the session name after the
device_id as below.
/sys/devices/virtual/rnbd-client/ctl/devices/<device_id>@<session_name>

Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Gioh Kim 2020-11-26 11:47:19 +01:00 committed by Jens Axboe
parent 47479b7954
commit 7578d5cd1e
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
Documentation/ABI/testing/sysfs-class-rnbd-client
View file

@ -95,12 +95,12 @@ Description: Expected format is the following::
---------------------------------
After mapping, the device file can be found by:
o The symlink /sys/class/rnbd-client/ctl/devices/<device_id>
o The symlink /sys/class/rnbd-client/ctl/devices/<device_id>@<session_name>
points to /sys/block/<dev-name>. The last part of the symlink destination
is the same as the device name. By extracting the last part of the
path the path to the device /dev/<dev-name> can be build.
* /dev/block/$(cat /sys/class/rnbd-client/ctl/devices/<device_id>/dev)
* /dev/block/$(cat /sys/class/rnbd-client/ctl/devices/<device_id>@<session_name>/dev)
How to find the <device_id> of the device is described on the next
section.
@ -110,7 +110,7 @@ Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: For each device mapped on the client a new symbolic link is created as
/sys/class/rnbd-client/ctl/devices/<device_id>, which points
/sys/class/rnbd-client/ctl/devices/<device_id>@<session_name>, which points
to the block device created by rnbd (/sys/block/rnbd<N>/).
The <device_id> of each device is created as follows: