Re: [PATCH/RFC] I/O-check interface for driver's error handling

Pavel Machek
2005-03-04T13:54:29Z

Hi!

> > If there's no ->error method, at leat call ->remove so one device only
> > takes itself down.
> >
> > Does this make sense?
>
> This was my thought too last time we had this discussion. A completely
> asynchronous call is probably needed in addition to Hidetoshi's proposed API,
> since as you point out, the driver may not be running when an error occurs
> (e.g. in the case of a DMA error or more general bus problem). The async

Hmm, before we go async way (nasty locking, no?) could driver simply
ask "did something bad happen while I was sleeping?" at begining of each
function?

For DMA problems, driver probably has its own, timer-based,
"something is wrong" timer, anyway, no?
Pavel

--
64 bytes from 195.113.31.123: icmp_seq( ttlQ timeD8769.1 ms