Commit 97ec3320 authored by David Sterba's avatar David Sterba
Browse files

btrfs: handle block group lookup error when it's being removed 



The unlikely case of lookup error in btrfs_remove_block_group() can be
handled properly, in its caller this would lead to a transaction abort.
We can't do anything else, a block group must have been loaded first.

Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c093bf30

fs/btrfs/block-group.c

+3 −1
Original line number Diff line number Diff line
@@ -1063,7 +1063,9 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, 
	bool remove_rsv = false;



	block_group = btrfs_lookup_block_group(fs_info, map->start);

	BUG_ON(!block_group);

	if (!block_group)

		return -ENOENT;



	BUG_ON(!block_group->ro);



	trace_btrfs_remove_block_group(block_group);