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>
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 37b9091..16aa0c7 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -36,7 +36,7 @@
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)