From: Nikolay Borisov <nborisov@suse.com>
Date: Wed, 4 Mar 2020 15:04:47 +0000 (+0200)
Subject: btrfs: Remove impossible BUG_ON in get_tree_block_key
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c6600d9ac6987933b8a60950b7a51cc772095141;p=openwrt%2Fstaging%2Fblogic.git

btrfs: Remove impossible BUG_ON in get_tree_block_key

relocate_tree_blocks calls get_tree_block_key for a block iff that block
has its ->key_ready equal false. Thus the BUG_ON in the latter function
cannot ever be triggered so remove it.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 6130ba69bc49..ba39f6969a72 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3089,7 +3089,6 @@ static int get_tree_block_key(struct btrfs_fs_info *fs_info,
 {
 	struct extent_buffer *eb;
 
-	BUG_ON(block->key_ready);
 	eb = read_tree_block(fs_info, block->bytenr, block->key.offset,
 			     block->level, NULL);
 	if (IS_ERR(eb)) {