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Subject[PATCH 1/3] bas_gigaset: use tasklet_hi_schedule for timing critical tasklets
Date
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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