1 files changed, 11 insertions, 0 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index 823bb3475a68..0156bded3a66 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2628,6 +2628,17 @@ int ksm_disable_merge_any(struct mm_struct *mm)
 	return 0;
 }
 
+int ksm_disable(struct mm_struct *mm)
+{
+	mmap_assert_write_locked(mm);
+
+	if (!test_bit(MMF_VM_MERGEABLE, &mm->flags))
+		return 0;
+	if (test_bit(MMF_VM_MERGE_ANY, &mm->flags))
+		return ksm_disable_merge_any(mm);
+	return ksm_del_vmas(mm);
+}
+
 int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
 		unsigned long end, int advice, unsigned long *vm_flags)
 {