[S390] Fix smp_call_function_mask semantics.

Make sure func isn't called on the local cpu just like on all other
architectures that implement this function.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index aa37fa154512..f5046fd4930f 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -225,12 +225,11 @@ EXPORT_SYMBOL(smp_call_function_single);
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-int
-smp_call_function_mask(cpumask_t mask,
-                        void (*func)(void *), void *info,
-                        int wait)
+int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info,
+                           int wait)
 {
         preempt_disable();
+        cpu_clear(smp_processor_id(), mask);
         __smp_call_function_map(func, info, 0, wait, mask);
         preempt_enable();
         return 0;