From: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Date: Wed, 4 Dec 2019 06:39:41 +0000 (-0500)
Subject: zygo: btrfs: check for DEAD_RELOC_TREE in fs/btrfs/relocation.c
X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58c565293237591eb0bd3baeb553b34b74d08fab;p=linux

zygo: btrfs: check for DEAD_RELOC_TREE in fs/btrfs/relocation.c

(cherry picked from commit de97fa43b71a6515cb574419e97c921878547752)
(cherry picked from commit 92038017ebf650b7dacce333ff7e6b91d296997c)
---

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 782b5dc6befc..d4887a1e43d3 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -520,6 +520,10 @@ static int should_ignore_root(struct btrfs_root *root)
 
 	if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))
 		return 0;
+	if (test_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state)) {
+		WARN_ON(1);
+		return 0;
+	}
 
 	reloc_root = root->reloc_root;
 	if (!reloc_root)