BTRFS_LOCKDEP_TRANS_COMMIT_PREP
BTRFS_LOCKDEP_TRANS_COMMIT_PREP);
btrfs_might_wait_for_state(fs_info, BTRFS_LOCKDEP_TRANS_COMMIT_PREP);
btrfs_trans_state_lockdep_acquire(fs_info, BTRFS_LOCKDEP_TRANS_COMMIT_PREP);
BTRFS_LOCKDEP_TRANS_COMMIT_PREP);
btrfs_trans_state_lockdep_release(fs_info, BTRFS_LOCKDEP_TRANS_COMMIT_PREP);
btrfs_trans_state_lockdep_release(fs_info, BTRFS_LOCKDEP_TRANS_COMMIT_PREP);