diff options
Diffstat (limited to 'fs/bcachefs/btree_update_leaf.c')
| -rw-r--r-- | fs/bcachefs/btree_update_leaf.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/bcachefs/btree_update_leaf.c b/fs/bcachefs/btree_update_leaf.c index 0952885f3caa..33693467810b 100644 --- a/fs/bcachefs/btree_update_leaf.c +++ b/fs/bcachefs/btree_update_leaf.c @@ -1735,6 +1735,37 @@ int __must_check bch2_trans_update_buffered(struct btree_trans *trans, return 0; } +int bch2_bkey_get_empty_slot(struct btree_trans *trans, struct btree_iter *iter, + enum btree_id btree, struct bpos end) +{ + struct bkey_s_c k; + int ret = 0; + + bch2_trans_iter_init(trans, iter, btree, POS_MAX, BTREE_ITER_INTENT); + k = bch2_btree_iter_prev(iter); + ret = bkey_err(k); + if (ret) + goto err; + + bch2_btree_iter_advance(iter); + k = bch2_btree_iter_peek_slot(iter); + ret = bkey_err(k); + if (ret) + goto err; + + BUG_ON(k.k->type != KEY_TYPE_deleted); + + if (bkey_gt(k.k->p, end)) { + ret = -BCH_ERR_ENOSPC_btree_slot; + goto err; + } + + return 0; +err: + bch2_trans_iter_exit(trans, iter); + return ret; +} + void bch2_trans_commit_hook(struct btree_trans *trans, struct btree_trans_commit_hook *h) { |