Re: [RFC patch 2/5] genirq: add a quick check handler

From: Steven Rostedt
Date: Thu Oct 02 2008 - 01:09:18 EST



On Wed, 1 Oct 2008, Jon Masters wrote:
>
> We probably need some documentation eventually so people realize what
> this "quickcheck" handler is for and what it's not for - under no
> circumstances should anything more than the bare minimum be done.
> Otherwise it breaks the benefit of deferred threaded handling. It's hard
> to enforce that - but this is *not* a return of top/bottom half handling
> where you can do whatever crap you like in the quickcheck bit.
>

We could always implement something similar to what I was told Microsoft
does (I was just told this, I don't know for fact). Time this function and
if it takes longer than, say 50us, print a warning and kill the device
;-)

-- Steve

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