static void queue_barrier(struct drbd_conf *mdev)
{
struct drbd_tl_epoch *b;
if (test_bit(CREATE_BARRIER, &mdev->flags))
return;
b = mdev->newest_tle;
b->w.cb = w_send_barrier;
inc_ap_pending(mdev);
drbd_queue_work(&mdev->data.work, &b->w);
set_bit(CREATE_BARRIER, &mdev->flags);
}
static void queue_barrier(struct drbd_conf *mdev)
{
struct drbd_tl_epoch *b;
/* We are within the req_lock. Once we queued the barrier for sending,
* we set the CREATE_BARRIER bit. It is cleared as soon as a new
* barrier/epoch object is added. This is the only place this bit is
* set. It indicates that the barrier for this epoch is already queued,
* and no new epoch has been created yet. */
if (test_bit(CREATE_BARRIER, &mdev->flags))
return;
b = mdev->newest_tle;
b->w.cb = w_send_barrier;
/* inc_ap_pending done here, so we won't
* get imbalanced on connection loss.
* dec_ap_pending will be done in got_BarrierAck
* or (on connection loss) in tl_clear. */
inc_ap_pending(mdev);
drbd_queue_work(&mdev->data.work, &b->w);
set_bit(CREATE_BARRIER, &mdev->flags);
}
