autofs: fix Documentation regarding devid on ioctl

The explanation on how ioctl handles devid seems incorrect.  Userspace who
calls this ioctl has no input regarding devid, and ioctl implementation
retrieves devid via superblock.

Link: http://lkml.kernel.org/r/20160812024825.12352.13486.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
Signed-off-by: Ian Kent <ikent@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/Documentation/filesystems/autofs4-mount-control.txt b/Documentation/filesystems/autofs4-mount-control.txt
index aff22113a9866384279600728f6d3a2c92558248..540d9a7e252d3cffa63b17128f5ad89f42e393f1 100644 (file)
--- a/Documentation/filesystems/autofs4-mount-control.txt
+++ b/Documentation/filesystems/autofs4-mount-control.txt
@@ -323,9 +323,8 @@ mount on the given path dentry.
 
 The call requires an initialized struct autofs_dev_ioctl with the path
 field set to the mount point in question and the size field adjusted
-appropriately as well as the arg1 field set to the device number of the
-containing autofs mount. Upon return the struct field arg1 contains the
-uid and arg2 the gid.
+appropriately. Upon return the struct field arg1 contains the uid and
+arg2 the gid.
 
 When reconstructing an autofs mount tree with active mounts we need to
 re-connect to mounts that may have used the original process uid and