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-rw-r--r--arch/s390/mm/pgtable.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index c8188a18af05..ae44d2a34313 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -881,22 +881,6 @@ int s390_enable_sie(void)
}
EXPORT_SYMBOL_GPL(s390_enable_sie);
-#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 volatile(
- " lra %1,0(%1)\n"
- " ipm %0\n"
- " srl %0,28"
- : "=d" (cc), "+a" (addr) : : "cc");
- return cc == 0;
-}
-#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */
-
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
int pmdp_clear_flush_young(struct vm_area_struct *vma, unsigned long address,
pmd_t *pmdp)