hash__pgtable_trans_huge_withdraw
extern pgtable_t hash__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
extern pgtable_t hash__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
return hash__pgtable_trans_huge_withdraw(mm, pmdp);