Mike Galbraith <umgwanakikb...@gmail.com> :
[...]
> Hrm, relatively new + tasklet woes rings a bell. Ah, that..
>
> <quote>
> What's worse is that at the point where this code was written it was
> already well known that tasklets are a steaming pile of crap and
> should die.
> </quote>
>
> Source thereof https://lwn.net/Articles/588457/
tasklets are ingrained in the dmaengine API (see
Documentation/dmaengine/client.txt
and drivers/dma/virt-dma.h::vchan_cookie_complete).
Moving everything to irq context or handling his own sub-{jiffy/ms} timer
while losing async dma doesn't exactly smell like roses either. :o(
--
Ueimor
