linux/mm/pgtable-generic.c

112 			  unsigned long address, pmd_t *pmdp,
115 	int changed = !pmd_same(*pmdp, entry);
118 		set_pmd_at(vma->vm_mm, address, pmdp, entry);
127 			   unsigned long address, pmd_t *pmdp)
131 	young = pmdp_test_and_clear_young(vma, address, pmdp);
140 			    pmd_t *pmdp)
144 	VM_BUG_ON(pmd_present(*pmdp) && !pmd_trans_huge(*pmdp));
145 	pmd = pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);
166 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
169 	assert_spin_locked(pmd_lockptr(mm, pmdp));
172 	if (!pmd_huge_pte(mm, pmdp))
175 		list_add(&pgtable->lru, &pmd_huge_pte(mm, pmdp)->lru);
176 	pmd_huge_pte(mm, pmdp) = pgtable;
182 pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
186 	assert_spin_locked(pmd_lockptr(mm, pmdp));
189 	pgtable = pmd_huge_pte(mm, pmdp);
190 	pmd_huge_pte(mm, pmdp) = list_first_entry_or_null(&pgtable->lru,
192 	if (pmd_huge_pte(mm, pmdp))
200 		     pmd_t *pmdp)
202 	VM_WARN_ON_ONCE(!pmd_present(*pmdp));
203 	pmd_t old = pmdp_establish(vma, address, pmdp, pmd_mkinvalid(*pmdp));
211 			 pmd_t *pmdp)
213 	VM_WARN_ON_ONCE(!pmd_present(*pmdp));
214 	return pmdp_invalidate(vma, address, pmdp);
220 			  pmd_t *pmdp)
229 	VM_BUG_ON(pmd_trans_huge(*pmdp));
230 	pmd = pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);