When a node is added to sysfs (e.g. a device plugged in via USB), the
filesystem fails to make this change visible in the parent directory's
ctime/mtime. This is in contrast to removing a device, because in that
case, sysfs makes use of the function simple_unlink from fs/libfs.c which
takes care of that. Instead of using simple_link from fs/libfs.c on
creation, sysfs implements its own mechanism. This patch hooks into the
function sysfs_create and sets the ctime and the mtime of the parent to
CURRENT_TIME.
Signed-off-by: Sebastian Henschel <linux@kodeaffe.de>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>