sysfs: Add support for permanently empty directories to serve as mount points.
authorEric W. Biederman <ebiederm@xmission.com>
Wed, 13 May 2015 21:31:40 +0000 (16:31 -0500)
committerEric W. Biederman <ebiederm@xmission.com>
Wed, 1 Jul 2015 15:36:45 +0000 (10:36 -0500)
commit87d2846fcf88113fae2341da1ca9a71f0d916f2c
tree5aaf304f79f21e633d2efac5107266ff11dca2a1
parentea015218f2f7ace2dad9cedd21ed95bdba2886d7
sysfs: Add support for permanently empty directories to serve as mount points.

Add two functions sysfs_create_mount_point and
sysfs_remove_mount_point that hang a permanently empty directory off
of a kobject or remove a permanently emptpy directory hanging from a
kobject.  Export these new functions so modular filesystems can use
them.

Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
fs/sysfs/dir.c
include/linux/sysfs.h