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-rw-r--r--mm/huge_memory.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index da23eb96779f..1546655a2d78 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1166,8 +1166,10 @@ alloc:
} else {
ret = do_huge_pmd_wp_page_fallback(mm, vma, address,
pmd, orig_pmd, page, haddr);
- if (ret & VM_FAULT_OOM)
+ if (ret & VM_FAULT_OOM) {
split_huge_page(page);
+ ret |= VM_FAULT_FALLBACK;
+ }
put_page(page);
}
count_vm_event(THP_FAULT_FALLBACK);
@@ -1179,9 +1181,10 @@ alloc:
if (page) {
split_huge_page(page);
put_page(page);
- }
+ } else
+ split_huge_page_pmd(vma, address, pmd);
+ ret |= VM_FAULT_FALLBACK;
count_vm_event(THP_FAULT_FALLBACK);
- ret |= VM_FAULT_OOM;
goto out;
}
@@ -1958,7 +1961,7 @@ out:
return ret;
}
-#define VM_NO_THP (VM_SPECIAL|VM_MIXEDMAP|VM_HUGETLB|VM_SHARED|VM_MAYSHARE)
+#define VM_NO_THP (VM_SPECIAL | VM_HUGETLB | VM_SHARED | VM_MAYSHARE)
int hugepage_madvise(struct vm_area_struct *vma,
unsigned long *vm_flags, int advice)