[PATCH] hangcheck: remove monotomic_clock on x86

John's about to nuke x86's monotonic clock without grepping for it first.  The
patch lamely borrows the ppc64 code for x86.

hangcheck-timer shouldn't be doing it this way

a) HAVE_MONOTONIC should be CONFIG_MONOTONIC_CLOCK and it should be defined
   in arch/xxx/Kconfig.

b) That ifdef tangle shouldn't be in hangcheck-timer.c.  It should be using
   arch-provided helper functions, which CONFIG_MONOTONIC_CLOCK-enabling
   architectures implement in arch/something.c

Cc: john stultz <johnstul@us.ibm.com>
Acked-by: NJoel Becker <joel.becker@oracle.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/char/hangcheck-timer.c

@@ -117,12 +117,12 @@ __setup("hcheck_reboot", hangcheck_parse_reboot);
 __setup("hcheck_dump_tasks", hangcheck_parse_dump_tasks);
 #endif /* not MODULE */
 
-#if defined(CONFIG_X86) || defined(CONFIG_S390)
+#if defined(CONFIG_X86_64) || defined(CONFIG_S390)
 # define HAVE_MONOTONIC
 # define TIMER_FREQ 1000000000ULL
 #elif defined(CONFIG_IA64)
 # define TIMER_FREQ ((unsigned long long)local_cpu_data->itc_freq)
-#elif defined(CONFIG_PPC64)
+#else
 # define TIMER_FREQ (HZ*loops_per_jiffy)
 #endif