s390/kernel: use stnsm 255 instead of stosm 0

On some models, stnsm 255 might be slightly faster than stosm 0. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
mariux64 · Dec 18, 2014 · 81fc77f · 81fc77f
1 parent 032014b
commit 81fc77f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
@@ -36,7 +36,7 @@ static inline notrace void __arch_local_irq_ssm(unsigned long flags)
 
 static inline notrace unsigned long arch_local_save_flags(void)
 {
-	return __arch_local_irq_stosm(0x00);
+	return __arch_local_irq_stnsm(0xff);
 }
 
 static inline notrace unsigned long arch_local_irq_save(void)