Merge branch 'akpm-current/current'

[deliverable/linux.git] / mm / huge_memory.c

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index fc0d37e357c328411992ab229ae63c94a9e368ed..d76700d280879f68a3457effb4978de19a51d39b 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1138,7 +1138,7 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
                goto out;
 
        page = pmd_page(*pmd);
-       VM_BUG_ON_PAGE(!PageHead(page), page);
+       VM_BUG_ON_PAGE(!PageHead(page) && !is_zone_device_page(page), page);
        if (flags & FOLL_TOUCH)
                touch_pmd(vma, addr, pmd);
        if ((flags & FOLL_MLOCK) && (vma->vm_flags & VM_LOCKED)) {
@@ -1176,7 +1176,7 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
        }
 skip_mlock:
        page += (addr & ~HPAGE_PMD_MASK) >> PAGE_SHIFT;
-       VM_BUG_ON_PAGE(!PageCompound(page), page);
+       VM_BUG_ON_PAGE(!PageCompound(page) && !is_zone_device_page(page), page);
        if (flags & FOLL_GET)
                get_page(page);