From: Leo Martins <loemra.dev@gmail.com>
Date: Wed, 28 May 2025 00:04:22 +0000 (-0700)
Subject: btrfs: warn if leaking delayed_nodes in btrfs_put_root()
X-Git-Tag: v6.16-rc4~36^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=186b9dc3c302ad706b3f23c857eb128165f6b484;p=thirdparty%2Fkernel%2Fstable.git

btrfs: warn if leaking delayed_nodes in btrfs_put_root()

Add a warning for leaked delayed_nodes when putting a root. We currently
do this for inodes, but not delayed_nodes.

Signed-off-by: Leo Martins <loemra.dev@gmail.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
[ Remove the changelog from the commit message. ]
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 1beb9458f622a..3def930169638 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1835,6 +1835,8 @@ void btrfs_put_root(struct btrfs_root *root)
 	if (refcount_dec_and_test(&root->refs)) {
 		if (WARN_ON(!xa_empty(&root->inodes)))
 			xa_destroy(&root->inodes);
+		if (WARN_ON(!xa_empty(&root->delayed_nodes)))
+			xa_destroy(&root->delayed_nodes);
 		WARN_ON(test_bit(BTRFS_ROOT_DEAD_RELOC_TREE, &root->state));
 		if (root->anon_dev)
 			free_anon_bdev(root->anon_dev);