diff options
Diffstat (limited to 'arch/s390/mm/pgtable.c')
| -rw-r--r-- | arch/s390/mm/pgtable.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index c70215247071..c60bfb309ce6 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -314,21 +314,18 @@ int s390_enable_sie(void) } EXPORT_SYMBOL_GPL(s390_enable_sie); -#ifdef CONFIG_DEBUG_PAGEALLOC -#ifdef CONFIG_HIBERNATION +#if defined(CONFIG_DEBUG_PAGEALLOC) && defined(CONFIG_HIBERNATION) bool kernel_page_present(struct page *page) { unsigned long addr; int cc; addr = page_to_phys(page); - asm("lra %1,0(%1)\n" - "ipm %0\n" - "srl %0,28" - :"=d"(cc),"+a"(addr)::"cc"); + asm volatile( + " lra %1,0(%1)\n" + " ipm %0\n" + " srl %0,28" + : "=d" (cc), "+a" (addr) : : "cc"); return cc == 0; } - -#endif /* CONFIG_HIBERNATION */ -#endif /* CONFIG_DEBUG_PAGEALLOC */ - +#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */ |