Commit a43f7f82 authored Sep 13, 2016 by Liu Bo Committed by David Sterba Sep 26, 2016

Btrfs: remove BUG_ON in start_transaction



Since we could get errors from the concurrent aborted transaction,
the check of this BUG_ON in start_transaction is not true any more.

Say, while flushing free space cache inode's dirty pages,
btrfs_finish_ordered_io
 -> btrfs_join_transaction_nolock
      (the transaction has been aborted.)
      -> BUG_ON(type == TRANS_JOIN_NOLOCK);

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 3eb548ee

fs/btrfs/transaction.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -549,11 +549,8 @@ again:
		}
		} while (ret == -EBUSY);

		if (ret < 0) {
		/* We must get the transaction if we are JOIN_NOLOCK. */
		BUG_ON(type == TRANS_JOIN_NOLOCK);
		if (ret < 0)
		goto join_fail;
		}

		cur_trans = root->fs_info->running_transaction;

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