diff options
Diffstat (limited to 'fs/bcachefs/btree_iter.h')
| -rw-r--r-- | fs/bcachefs/btree_iter.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/bcachefs/btree_iter.h b/fs/bcachefs/btree_iter.h index da2b74fa63fc..24772538e4cc 100644 --- a/fs/bcachefs/btree_iter.h +++ b/fs/bcachefs/btree_iter.h @@ -819,6 +819,11 @@ __bch2_btree_iter_peek_and_restart(struct btree_trans *trans, #define for_each_btree_key_continue_norestart(_iter, _flags, _k, _ret) \ for_each_btree_key_upto_continue_norestart(_iter, SPOS_MAX, _flags, _k, _ret) +/* + * This should not be used in a fastpath, without first trying _do in + * nonblocking mode - it will cause excessive transaction restarts and + * potentially livelocking: + */ #define drop_locks_do(_trans, _do) \ ({ \ bch2_trans_unlock(_trans); \ |