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drbd: don't pointlessly queue bitmap send, if we lost connection 

This is a minor optimization and cleanup,
and also considerably reduces some harmless (but noisy) race with
the connection cleanup code.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Lars Ellenberg 2011-01-20 10:47:53 +01:00 committed by Philipp Reisner
parent 194bfb32db
commit 54b956abef
1 changed files with 7 additions and 2 deletions
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9
drivers/block/drbd/drbd_main.c
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@ -1428,8 +1428,13 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
drbd_send_uuids(mdev);
drbd_send_state(mdev);
}
if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S)
drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL, "send_bitmap (WFBitMapS)");
/* No point in queuing send_bitmap if we don't have a connection
* anymore, so check also the _current_ state, not only the new state
* at the time this work was queued. */
if (os.conn != C_WF_BITMAP_S && ns.conn == C_WF_BITMAP_S &&
mdev->state.conn == C_WF_BITMAP_S)
drbd_queue_bitmap_io(mdev, &drbd_send_bitmap, NULL,
"send_bitmap (WFBitMapS)");
/* Lost contact to peer's copy of the data */
if ((os.pdsk >= D_INCONSISTENT &&