summaryrefslogtreecommitdiff
path: root/arch/s390/mm/pgtable.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/mm/pgtable.c')
-rw-r--r--arch/s390/mm/pgtable.c17
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 */