Commit 43ae077d authored by Andreas Gruenbacher's avatar Andreas Gruenbacher Committed by Philipp Reisner
Browse files

drbd: Make the peer_seq updating code more obvious 



Make it more clear that update_peer_seq() is supposed to wake up the
seq_wait queue whenever the sequence number changes.

Signed-off-by: default avatarPhilipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: default avatarLars Ellenberg <lars.ellenberg@linbit.com>
parent 6024fece

drivers/block/drbd/drbd_receiver.c

+5 −5
Original line number Diff line number Diff line
@@ -1650,15 +1650,15 @@ static u32 seq_max(u32 a, u32 b) 
	return seq_greater(a, b) ? a : b;

}



static void update_peer_seq(struct drbd_conf *mdev, unsigned int new_seq)

static void update_peer_seq(struct drbd_conf *mdev, unsigned int peer_seq)

{

	unsigned int m;

	unsigned int old_peer_seq;



	spin_lock(&mdev->peer_seq_lock);

	m = seq_max(mdev->peer_seq, new_seq);

	mdev->peer_seq = m;

	old_peer_seq = mdev->peer_seq;

	mdev->peer_seq = seq_max(mdev->peer_seq, peer_seq);

	spin_unlock(&mdev->peer_seq_lock);

	if (m == new_seq)

	if (old_peer_seq != peer_seq)

		wake_up(&mdev->seq_wait);

}