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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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Tomohiro Kusumi 2016-10-11 13:52:53 -07:00 committed by Linus Torvalds
parent 72063e01ed
commit d873284103
1 changed files with 2 additions and 3 deletions
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5
Documentation/filesystems/autofs4-mount-control.txt
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@ -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