Commit 7ac1e464 authored by Qu Wenruo's avatar Qu Wenruo Committed by David Sterba
Browse files

btrfs: Don't panic when we can't find a root key



When we failed to find a root key in btrfs_update_root(), we just panic.

That's definitely not cool, fix it by outputting an unique error
message, aborting current transaction and return -EUCLEAN. This should
not normally happen as the root has been used by the callers in some
way.

Reviewed-by: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarQu Wenruo <wqu@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c53839fc
......@@ -137,11 +137,14 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root
goto out;
}
if (ret != 0) {
btrfs_print_leaf(path->nodes[0]);
btrfs_crit(fs_info, "unable to update root key %llu %u %llu",
key->objectid, key->type, key->offset);
BUG_ON(1);
if (ret > 0) {
btrfs_crit(fs_info,
"unable to find root key (%llu %u %llu) in tree %llu",
key->objectid, key->type, key->offset,
root->root_key.objectid);
ret = -EUCLEAN;
btrfs_abort_transaction(trans, ret);
goto out;
}
l = path->nodes[0];
......
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