Merge tag 'trace-fixes-v3.14-rc7-v2' of git://git.kernel.org/pub/scm/linux/kernel...

[~andy/linux] / mm / huge_memory.c

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index da23eb96779f2bfb4e893eece4774f14499ebaaa..1546655a2d78afe4dc1c954b5e0ccff77ba3437f 100644 (file)
--- 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)