return;
/*
- * Caller holds the mmap_sem write mode, so a huge pmd cannot
- * materialize from under us.
+ * Caller holds the mmap_sem write mode or the anon_vma lock,
+ * so a huge pmd cannot materialize from under us (khugepaged
+ * holds both the mmap_sem write mode and the anon_vma lock
+ * write mode).
*/
__split_huge_pmd(vma, pmd, address, freeze);
}