Messages in this thread |  | | | Date | Sun, 30 Dec 2007 18:08:26 +0100 | | From | Ingo Molnar <> | | Subject | Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override |
* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > ah, i understand. So i guess a stupid udelay_serialized() which
> > takes a global spinlock would solve these sort of races? But i guess
> > making them more likely to trigger would lead to a better kernel in
> > the end ...
>
> Better to just fix the drivers. I don't think that will take too many
> days after everyone is back working.
ok.
> > doing it - but we'll do the plunge in v2.6.25 and make
> > io_delay=udelay the default, hm? Thomas has a real 386DX system, if
> > that doesnt break
>
> For processors with TSC I think we should aim for 2.6.25 to do this
> and to have the major other _p fixups done. I pity whoever does stuff
> like the scc drivers but most of the rest isn't too bad.
ok, sounds good to me. The current io_delay= stuff for v2.6.25 is
already shaped as a debugging/transition helper, towards complete
elimination of _p() uses.
Ingo
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