diff options
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index b8c52e89688c..528efe559866 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -2604,6 +2604,35 @@ int btrfs_clean_one_deleted_snapshot(struct btrfs_fs_info *fs_info) return (ret < 0) ? 0 : 1; } +/* + * We only mark the transaction aborted and then set the file system read-only. + * This will prevent new transactions from starting or trying to join this + * one. + * + * This means that error recovery at the call site is limited to freeing + * any local memory allocations and passing the error code up without + * further cleanup. The transaction should complete as it normally would + * in the call path but will return -EIO. + * + * We'll complete the cleanup in btrfs_end_transaction and + * btrfs_commit_transaction. + */ +void __cold __btrfs_abort_transaction(struct btrfs_trans_handle *trans, + const char *function, + unsigned int line, int errno, bool first_hit) +{ + struct btrfs_fs_info *fs_info = trans->fs_info; + + WRITE_ONCE(trans->aborted, errno); + WRITE_ONCE(trans->transaction->aborted, errno); + if (first_hit && errno == -ENOSPC) + btrfs_dump_space_info_for_trans_abort(fs_info); + /* Wake up anybody who may be waiting on this transaction */ + wake_up(&fs_info->transaction_wait); + wake_up(&fs_info->transaction_blocked_wait); + __btrfs_handle_fs_error(fs_info, function, line, errno, NULL); +} + int __init btrfs_transaction_init(void) { btrfs_trans_handle_cachep = kmem_cache_create("btrfs_trans_handle", |