diff options
Diffstat (limited to 'arch/ia64/kernel/process.c')
-rw-r--r-- | arch/ia64/kernel/process.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index ce74e143aea3..5e0e86ddb12f 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c | |||
@@ -273,26 +273,6 @@ static inline void play_dead(void) | |||
273 | } | 273 | } |
274 | #endif /* CONFIG_HOTPLUG_CPU */ | 274 | #endif /* CONFIG_HOTPLUG_CPU */ |
275 | 275 | ||
276 | static void do_nothing(void *unused) | ||
277 | { | ||
278 | } | ||
279 | |||
280 | /* | ||
281 | * cpu_idle_wait - Used to ensure that all the CPUs discard old value of | ||
282 | * pm_idle and update to new pm_idle value. Required while changing pm_idle | ||
283 | * handler on SMP systems. | ||
284 | * | ||
285 | * Caller must have changed pm_idle to the new value before the call. Old | ||
286 | * pm_idle value will not be used by any CPU after the return of this function. | ||
287 | */ | ||
288 | void cpu_idle_wait(void) | ||
289 | { | ||
290 | smp_mb(); | ||
291 | /* kick all the CPUs so that they exit out of pm_idle */ | ||
292 | smp_call_function(do_nothing, NULL, 1); | ||
293 | } | ||
294 | EXPORT_SYMBOL_GPL(cpu_idle_wait); | ||
295 | |||
296 | void __attribute__((noreturn)) | 276 | void __attribute__((noreturn)) |
297 | cpu_idle (void) | 277 | cpu_idle (void) |
298 | { | 278 | { |