| From | Philipp Reisner <> | Subject | [PATCH 054/118] drbd: Make the peer_seq updating code more obvious | Date | Thu, 25 Aug 2011 17:07:50 +0200 |
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From: Andreas Gruenbacher <agruen@linbit.com>
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: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> --- drivers/block/drbd/drbd_receiver.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index cde48f3..654c1c9 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1654,15 +1654,15 @@ 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); } -- 1.7.4.1
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