sched: fix hrtick & generic-ipi dependency

Andrew Morton reported this s390 allmodconfig build failure:

 kernel/built-in.o: In function `hrtick_start_fair':
 sched.c:(.text+0x69c6): undefined reference to `__smp_call_function_single'

the reason is that s390 is not a generic-ipi SMP platform yet, while
the hrtick code relies on it. Fix the dependency.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 2a202a846757f238cccb290033633e5778bd3bb9..382dd5a8b2d7f5dd97359895358610f2f4866595 100644 (file)
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -55,4 +55,4 @@ config HZ
        default 1000 if HZ_1000
 
 config SCHED_HRTICK
-       def_bool HIGH_RES_TIMERS
+       def_bool HIGH_RES_TIMERS && USE_GENERIC_SMP_HELPERS