drbd: only wakeup if something changed in update_peer_seq

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This commit got it wrong:
    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.

We don't need to wake up everytime we receive a sequence number
that is _different_ from our currently stored "newest" sequence number,
but only if we receive a sequence number _newer_ than what we already
have, when we actually change mdev->peer_seq.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

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Lars Ellenberg 2011-02-23 16:10:01 +01:00 • committed by Philipp Reisner

parent a5df0e199c

commit 3c13b680ce

1 changed files with 5 additions and 4 deletions

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drivers/block/drbd/drbd_receiver.c

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