From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 12 Mar 2021 15:25:09 -0500
Subject: btrfs: handle record_root_in_trans failure in qgroup_account_snapshot
Git-commit: 1c442d22466074b8290d89ddda2c2edbf8be1eaf
Patch-mainline: v5.13-rc1
References: bsc#1187833

record_root_in_trans can fail currently, 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>
Acked-by: Nikolay Borisov <nborisov@suse.com>
---
 fs/btrfs/transaction.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1341,7 +1341,9 @@ static int qgroup_account_snapshot(struc
 	 * recorded root will never be updated again, causing an outdated root
 	 * item.
 	 */
-	record_root_in_trans(trans, src, 1);
+	ret = record_root_in_trans(trans, src, 1);
+	if (ret)
+		return ret;
 
 	/*
 	 * We are going to commit transaction, see btrfs_commit_transaction()
@@ -1394,7 +1396,7 @@ out:
 	 * insert_dir_item()
 	 */
 	if (!ret)
-		record_root_in_trans(trans, parent, 1);
+		ret = record_root_in_trans(trans, parent, 1);
 	return ret;
 }