From: Andy Whitcroft <apw@shadowen.org>

Both modprobe_path and hotplug_path are arbitrarily sized at 256 bytes and
that size is also expressed directly in the sysctl code.  It seems
reasonable to define a standard length and use that for consitancy.  This
patch introduces the constant KMOD_PATH_LEN and uses that.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>