From: Andrew Morton <akpm@linux-foundation.org>

`make headers_check' fails with

/usr/src/devel/usr/include/linux/futex.h requires linux/ktime.h, which does not exist in exported headers

Cc: Sebastien Dugue <sebastien.dugue@bull.net>
Cc: Pierre Peiffer <pierre.peiffer@bull.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/futex.h |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff -puN include/linux/futex.h~make-futex_wait-use-an-hrtimer-for-timeout-fix include/linux/futex.h
--- a/include/linux/futex.h~make-futex_wait-use-an-hrtimer-for-timeout-fix
+++ a/include/linux/futex.h
@@ -1,9 +1,10 @@
 #ifndef _LINUX_FUTEX_H
 #define _LINUX_FUTEX_H
 
-#include <linux/ktime.h>
 #include <linux/sched.h>
 
+union ktime;
+
 /* Second argument to futex syscall */
 
 
@@ -95,7 +96,7 @@ struct robust_list_head {
 #define ROBUST_LIST_LIMIT	2048
 
 #ifdef __KERNEL__
-long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
+long do_futex(u32 __user *uaddr, int op, u32 val, union ktime *timeout,
 	      u32 __user *uaddr2, u32 val2, u32 val3);
 
 extern int
_