[PATCH] hrtimer: introduce ktime_t time format

- introduce ktime_t: nanosecond-resolution time format.

- eliminate the plain s64 scalar type, and always use the union.
  This simplifies the arithmetics. Idea from Roman Zippel.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 554ce3f344c9..815878ebd30f 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1060,3 +1060,7 @@ config X86_TRAMPOLINE
         bool
         depends on X86_SMP || (X86_VOYAGER && SMP)
         default y
+
+config KTIME_SCALAR
+        bool
+        default y