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btrfs: add comment to struct btrfs_fs_info::dirty_cowonly_roots

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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>
This commit is contained in:
Filipe Manana 2023-06-19 17:21:49 +01:00 committed by David Sterba
parent babebf023e
commit 08eb2ad9db
1 changed files with 1 additions and 0 deletions
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fs/btrfs/fs.h
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@ -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;