From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 12 Mar 2021 15:25:02 -0500
Subject: btrfs: handle btrfs_record_root_in_trans failure in
 btrfs_rename_exchange
Git-commit: 00aa8e87c9dc63bf145bee00d890198cf7c45a24
Patch-mainline: v5.13-rc1
References: bsc#1187833

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

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/inode.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 41517d14c950..179ffb9529d4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9108,8 +9108,11 @@ static int btrfs_rename_exchange(struct inode *old_dir,
 		goto out_notrans;
 	}
 
-	if (dest != root)
-		btrfs_record_root_in_trans(trans, dest);
+	if (dest != root) {
+		ret = btrfs_record_root_in_trans(trans, dest);
+		if (ret)
+			goto out_fail;
+	}
 
 	/*
 	 * We need to find a free sequence number both in the source and