-/* when we receive the ACK for a write request,
- * verify that we actually know about it */
-static struct drbd_request *_ack_id_to_req(struct drbd_conf *mdev,
- u64 id, sector_t sector)
-{
- struct hlist_head *slot = tl_hash_slot(mdev, sector);
- struct hlist_node *n;
- struct drbd_request *req;
-
- hlist_for_each_entry(req, n, slot, collision) {
- if ((unsigned long)req == (unsigned long)id) {
- if (req->sector != sector) {
- dev_err(DEV, "_ack_id_to_req: found req %p but it has "
- "wrong sector (%llus versus %llus)\n", req,
- (unsigned long long)req->sector,
- (unsigned long long)sector);
- break;
- }
- return req;
- }
- }
- return NULL;
-}
-
-typedef struct drbd_request *(req_validator_fn)
- (struct drbd_conf *mdev, u64 id, sector_t sector);
-
-static int validate_req_change_req_state(struct drbd_conf *mdev,
- u64 id, sector_t sector, req_validator_fn validator,
- const char *func, enum drbd_req_event what)
+static int
+validate_req_change_req_state(struct drbd_conf *mdev, u64 id, sector_t sector,
+ struct rb_root *root, const char *func,
+ enum drbd_req_event what, bool missing_ok)