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btrfs: handle btrfs_record_root_in_trans failure in start_transaction 

btrfs_record_root_in_trans will return errors in the future, so handle
the error properly in start_transaction.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add comment ]
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2021-03-12 15:25:08 -05:00 committed by David Sterba
parent d18c7bd95c
commit 68075ea8d7
1 changed files with 10 additions and 1 deletions
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11
fs/btrfs/transaction.c
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@ -746,7 +746,16 @@ got_it:
* Thus it need to be called after current->journal_info initialized,
* or we can deadlock.
*/
btrfs_record_root_in_trans(h, root);
ret = btrfs_record_root_in_trans(h, root);
if (ret) {
/*
* The transaction handle is fully initialized and linked with
* other structures so it needs to be ended in case of errors,
* not just freed.
*/
btrfs_end_transaction(h);
return ERR_PTR(ret);
}
return h;