[PATCH for-next 4/8] Documentation/ABI/rnbd-clt: session name is appended to the device path
From: Jack Wang <jinpu.wang@cloud.ionos.com>
Date: 2020-11-26 10:47:47
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Gioh Kim <redacted> 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 <redacted> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> --- Documentation/ABI/testing/sysfs-class-rnbd-client | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-class-rnbd-client b/Documentation/ABI/testing/sysfs-class-rnbd-client
index ca3267b81886..2aa05b3e348e 100644
--- a/Documentation/ABI/testing/sysfs-class-rnbd-client
+++ b/Documentation/ABI/testing/sysfs-class-rnbd-client@@ -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:
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2.25.1