From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 12 Mar 2021 15:25:10 -0500
Subject: btrfs: handle record_root_in_trans failure in
 btrfs_record_root_in_trans
Git-commit: 1409e6cc7461d091b2ef1ad16954972d4ca1c784
Patch-mainline: v5.13-rc1
References: bsc#1187833

record_root_in_trans can fail currently, handle this failure properly.

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
@@ -387,6 +387,7 @@ int btrfs_record_root_in_trans(struct bt
 			       struct btrfs_root *root)
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
+	int ret;

 	if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))
 		return 0;
@@ -401,10 +402,10 @@ int btrfs_record_root_in_trans(struct bt
 		return 0;

 	mutex_lock(&fs_info->reloc_mutex);
-	record_root_in_trans(trans, root, 0);
+	ret = record_root_in_trans(trans, root, 0);
 	mutex_unlock(&fs_info->reloc_mutex);

-	return 0;
+	return ret;
 }

 static inline int is_transaction_blocked(struct btrfs_transaction *trans)