229 static long region_add(struct resv_map *resv, long f, long t)  in region_add()  argument
231 	struct list_head *head = &resv->regions;  in region_add()
234 	spin_lock(&resv->lock);  in region_add()
264 	spin_unlock(&resv->lock);  in region_add()
268 static long region_chg(struct resv_map *resv, long f, long t)  in region_chg()  argument
270 	struct list_head *head = &resv->regions;  in region_chg()
275 	spin_lock(&resv->lock);  in region_chg()
286 			spin_unlock(&resv->lock);  in region_chg()
325 	spin_unlock(&resv->lock);  in region_chg()
330 	spin_unlock(&resv->lock);  in region_chg()
334 static long region_truncate(struct resv_map *resv, long end)  in region_truncate()  argument
336 	struct list_head *head = &resv->regions;  in region_truncate()
340 	spin_lock(&resv->lock);  in region_truncate()
365 	spin_unlock(&resv->lock);  in region_truncate()
369 static long region_count(struct resv_map *resv, long f, long t)  in region_count()  argument
371 	struct list_head *head = &resv->regions;  in region_count()
375 	spin_lock(&resv->lock);  in region_count()
391 	spin_unlock(&resv->lock);  in region_count()
1437 	struct resv_map *resv;  in vma_needs_reservation()  local
1441 	resv = vma_resv_map(vma);  in vma_needs_reservation()
1442 	if (!resv)  in vma_needs_reservation()
1446 	chg = region_chg(resv, idx, idx + 1);  in vma_needs_reservation()
1456 	struct resv_map *resv;  in vma_commit_reservation()  local
1459 	resv = vma_resv_map(vma);  in vma_commit_reservation()
1460 	if (!resv)  in vma_commit_reservation()
1464 	region_add(resv, idx, idx + 1);  in vma_commit_reservation()
2543 	struct resv_map *resv = vma_resv_map(vma);  in hugetlb_vm_op_open()  local
2553 	if (resv && is_vma_resv_set(vma, HPAGE_RESV_OWNER))  in hugetlb_vm_op_open()
2554 		kref_get(&resv->refs);  in hugetlb_vm_op_open()
2560 	struct resv_map *resv = vma_resv_map(vma);  in hugetlb_vm_op_close()  local
2565 	if (!resv || !is_vma_resv_set(vma, HPAGE_RESV_OWNER))  in hugetlb_vm_op_close()
2571 	reserve = (end - start) - region_count(resv, start, end);  in hugetlb_vm_op_close()
2573 	kref_put(&resv->refs, resv_map_release);  in hugetlb_vm_op_close()