- iters_bytes = sizeof(struct btree_iter) * new_size;
- updates_bytes = sizeof(struct btree_insert_entry) * new_size;
-
- p = kmalloc(iters_bytes +
- updates_bytes +
- updates_bytes, GFP_NOFS);
- if (p)
- goto success;
-
- p = mempool_alloc(&trans->c->btree_iters_pool, GFP_NOFS);
- new_size = BTREE_ITER_MAX;
-
- trans->used_mempool = true;
-success:
- new_iters = p; p += iters_bytes;
- new_updates = p; p += updates_bytes;
- new_updates2 = p; p += updates_bytes;
-
- memcpy(new_iters, trans->iters,
- sizeof(struct btree_iter) * trans->nr_iters);
- memcpy(new_updates, trans->updates,
- sizeof(struct btree_insert_entry) * trans->nr_updates);
- memcpy(new_updates2, trans->updates2,
- sizeof(struct btree_insert_entry) * trans->nr_updates2);
-
- if (IS_ENABLED(CONFIG_BCACHEFS_DEBUG))
- memset(trans->iters, POISON_FREE,
- sizeof(struct btree_iter) * trans->nr_iters +
- sizeof(struct btree_insert_entry) * trans->nr_iters);
-
- kfree(trans->iters);
-
- trans->iters = new_iters;
- trans->updates = new_updates;
- trans->updates2 = new_updates2;
- trans->size = new_size;
-
- if (trans->iters_live) {
- trace_trans_restart_iters_realloced(trans->ip, trans->size);
- return -EINTR;
- }