Messages in this thread Patch in this message | | | From | Tilman Schmidt <> | Subject | [PATCH 1/3] bas_gigaset: use tasklet_hi_schedule for timing critical tasklets | Date | Sun, 5 Apr 2009 18:39:33 +0200 (CEST) |
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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> --- drivers/isdn/gigaset/bas-gigaset.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 831ddce..781c404 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -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 -- 1.6.2.1.214.ge986c
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