* Unlinks nexthop specified by @nh_priv data from the hash. * * Returns found nexthop or NULL. */
| 328 | * Returns found nexthop or NULL. |
| 329 | */ |
| 330 | struct nhop_priv * |
| 331 | unlink_nhop(struct nh_control *ctl, struct nhop_priv *nh_priv_del) |
| 332 | { |
| 333 | struct nhop_priv *priv_ret; |
| 334 | int idx; |
| 335 | uint32_t num_buckets_new, num_items_new; |
| 336 | |
| 337 | idx = 0; |
| 338 | |
| 339 | NHOPS_WLOCK(ctl); |
| 340 | CHT_SLIST_REMOVE_BYOBJ(&ctl->nh_head, nhops, nh_priv_del, priv_ret); |
| 341 | |
| 342 | if (priv_ret != NULL) { |
| 343 | idx = priv_ret->nh_idx; |
| 344 | priv_ret->nh_idx = 0; |
| 345 | |
| 346 | KASSERT((idx != 0), ("bogus nhop index 0")); |
| 347 | if ((bitmask_free_idx(&ctl->nh_idx_head, idx)) != 0) { |
| 348 | DPRINTF("Unable to remove index %d from fib %u af %d", |
| 349 | idx, ctl->ctl_rh->rib_fibnum, |
| 350 | ctl->ctl_rh->rib_family); |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | /* Check if hash or index needs to be resized */ |
| 355 | num_buckets_new = CHT_SLIST_GET_RESIZE_BUCKETS(&ctl->nh_head); |
| 356 | num_items_new = bitmask_get_resize_items(&ctl->nh_idx_head); |
| 357 | |
| 358 | NHOPS_WUNLOCK(ctl); |
| 359 | |
| 360 | if (priv_ret == NULL) |
| 361 | DPRINTF("Unable to unlink nhop priv %p from hash, hash %u ctl %p", |
| 362 | nh_priv_del, hash_priv(nh_priv_del), ctl); |
| 363 | else |
| 364 | DPRINTF("Unlinked nhop %p priv idx %d", priv_ret, idx); |
| 365 | |
| 366 | consider_resize(ctl, num_buckets_new, num_items_new); |
| 367 | |
| 368 | return (priv_ret); |
| 369 | } |
| 370 | |
| 371 | /* |
| 372 | * Searches for the nexthop by data specifcied in @nh_priv. |
no test coverage detected