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bas_gigaset: use tasklet_hi_schedule for timing critical tasklets 

The tasklets for isochronous data transfer need to run within 8 msec
to avoid over/underruns, so schedule them with high priority to fix
reported issues with occasional over/underruns.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tilman Schmidt 2009-04-05 06:39:33 +00:00 committed by David S. Miller
parent d9677a45cf
commit 368fd81d2d
1 changed files with 2 additions and 2 deletions
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4
drivers/isdn/gigaset/bas-gigaset.c
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@ -821,7 +821,7 @@ static void read_iso_callback(struct urb *urb)
/* pass URB to tasklet */
ubc->isoindone = urb;
ubc->isoinstatus = status;
tasklet_schedule(&ubc->rcvd_tasklet);
tasklet_hi_schedule(&ubc->rcvd_tasklet);
} else {
/* tasklet still busy, drop data and resubmit URB */
ubc->loststatus = status;
@ -888,7 +888,7 @@ static void write_iso_callback(struct urb *urb)
ubc->isooutovfl = ubc->isooutdone;
ubc->isooutdone = ucx;
spin_unlock_irqrestore(&ubc->isooutlock, flags);
tasklet_schedule(&ubc->sent_tasklet);
tasklet_hi_schedule(&ubc->sent_tasklet);
}
/* starturbs