aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/kernel/smp.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 818bd09c0260..8f894d380a62 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -629,14 +629,8 @@ static int __cpuinit smp_alloc_lowcore(int cpu)
629 panic_stack = __get_free_page(GFP_KERNEL); 629 panic_stack = __get_free_page(GFP_KERNEL);
630 if (!panic_stack || !async_stack) 630 if (!panic_stack || !async_stack)
631 goto out; 631 goto out;
632 /* 632 memcpy(lowcore, &S390_lowcore, 512);
633 * Only need to copy the first 512 bytes from address 0. But since 633 memset((char *)lowcore + 512, 0, sizeof(*lowcore) - 512);
634 * the compiler emits a warning if src == NULL for memcpy use copy_page
635 * instead. Copies more than needed but this code is not performance
636 * critical.
637 */
638 copy_page(lowcore, &S390_lowcore);
639 memset((void *)lowcore + 512, 0, sizeof(*lowcore) - 512);
640 lowcore->async_stack = async_stack + ASYNC_SIZE; 634 lowcore->async_stack = async_stack + ASYNC_SIZE;
641 lowcore->panic_stack = panic_stack + PAGE_SIZE; 635 lowcore->panic_stack = panic_stack + PAGE_SIZE;
642 636