resource: move kernel function inside __KERNEL__

resource: move kernel function inside __KERNEL__

commit 96d07d211739fd2450ac54e81d00fa40fcd4b1bd upstream
From: Jiri Slaby <jslaby@suse.cz>

resource: move kernel function inside __KERNEL__

It is an internal function. Move it inside __KERNEL__ ifdef, along
with task_struct declaration.

Then we get:
#--- /usr/include/linux/resource.h       2009-09-14 15:09:29.000000000 +0200
#+++ usr/include/linux/resource.h       2010-01-04 11:30:54.000000000 +0100
#@@ -3,8 +3,6 @@
#
##include <linux/time.h>
#
#-struct task_struct;
#-
#/*
#* Resource control/accounting header file for linux
#*/
#@@ -70,6 +68,5 @@
#*/
##include <asm/resource.h>
#
#-int getrusage(struct task_struct *p, int who, struct rusage *ru);
#
##endif
#
#***********

include/linux/Kbuild is untouched, since unifdef is run even on
headers-y nowadays.

backport to 2.6.32 by maximilian attems <max@stro.at>
Patch commented out by gregkh due to quilt complaining.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: maximilian attems <max@stro.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>