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-rw-r--r--mm/huge_memory.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 465786cd6490..c5628ebc0fc2 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2587,6 +2587,9 @@ static void collapse_huge_page(struct mm_struct *mm,
* handled by the anon_vma lock + PG_lock.
*/
down_write(&mm->mmap_sem);
+ result = SCAN_ANY_PROCESS;
+ if (!mmget_still_valid(mm))
+ goto out;
if (unlikely(khugepaged_test_exit(mm)))
goto out;