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-rw-r--r--mm/memory.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 2afb01ea1307..589afe45d0b3 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3709,13 +3709,14 @@ static vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page)
unsigned long haddr = vmf->address & HPAGE_PMD_MASK;
pmd_t entry;
int i;
- vm_fault_t ret;
+ vm_fault_t ret = VM_FAULT_FALLBACK;
if (!transhuge_vma_suitable(vma, haddr))
- return VM_FAULT_FALLBACK;
+ return ret;
- ret = VM_FAULT_FALLBACK;
page = compound_head(page);
+ if (compound_order(page) != HPAGE_PMD_ORDER)
+ return ret;
/*
* Archs like ppc64 need additonal space to store information