[PATCH 11/18] autofs: Fix Documentation regarding devid on ioctl

From: Ian Kent
Date: Thu Aug 11 2016 - 22:48:41 EST


From: Tomohiro Kusumi <kusumi.tomohiro@xxxxxxxxx>

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.

Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@xxxxxxxxx>
Signed-off-by: Ian Kent <ikent@xxxxxxxxxx>
---
.../filesystems/autofs4-mount-control.txt | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/autofs4-mount-control.txt b/Documentation/filesystems/autofs4-mount-control.txt
index aff2211..540d9a7 100644
--- 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