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btrfs: handle record_root_in_trans failure in create_pending_snapshot

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record_root_in_trans can currently fail, so handle this failure
properly.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2021-03-12 15:25:11 -05:00 committed by David Sterba
parent 1409e6cc74
commit f0118cb6bc
1 changed files with 8 additions and 3 deletions
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11
fs/btrfs/transaction.c
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@ -1603,8 +1603,9 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
dentry = pending->dentry;
parent_inode = pending->dir;
parent_root = BTRFS_I(parent_inode)->root;
record_root_in_trans(trans, parent_root, 0);
ret = record_root_in_trans(trans, parent_root, 0);
if (ret)
goto fail;
cur_time = current_time(parent_inode);
/*
@ -1640,7 +1641,11 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
goto fail;
}
record_root_in_trans(trans, root, 0);
ret = record_root_in_trans(trans, root, 0);
if (ret) {
btrfs_abort_transaction(trans, ret);
goto fail;
}
btrfs_set_root_last_snapshot(&root->root_item, trans->transid);
memcpy(new_root_item, &root->root_item, sizeof(*new_root_item));
btrfs_check_and_init_root_item(new_root_item);