From: Filipe Manana <fdmanana@suse.com>
Date: Mon, 19 Jun 2023 16:21:49 +0000 (+0100)
Subject: btrfs: add comment to struct btrfs_fs_info::dirty_cowonly_roots
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=08eb2ad9db0a1f65786ab9133d6fe1683c0647c8;p=linux.git

btrfs: add comment to struct btrfs_fs_info::dirty_cowonly_roots

Add a comment to struct btrfs_fs_info::dirty_cowonly_roots to mention
that struct btrfs_fs_info::trans_lock is the lock that protects that
list.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/fs.h b/fs/btrfs/fs.h
index 396e2a4634807..203d2a2678287 100644
--- a/fs/btrfs/fs.h
+++ b/fs/btrfs/fs.h
@@ -576,6 +576,7 @@ struct btrfs_fs_info {
 	s32 dirty_metadata_batch;
 	s32 delalloc_batch;
 
+	/* Protected by 'trans_lock'. */
 	struct list_head dirty_cowonly_roots;
 
 	struct btrfs_fs_devices *fs_devices;