Re: [PATCH] msleep() with hrtimers

[Manu Abraham]

On 8/8/07, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> On Wed, Aug 08, 2007 at 03:09:14PM +0400, Manu Abraham wrote:
> > On 08 Aug 2007 13:55:28 +0200, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> > > Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> writes:
> > > >
> > > > I'd be surprised if there was significant overhead - the maximum frequency
> > > > at which msleep() can be called is 1000Hz.  We'd need an awful lot of
> > > > overhead for that to cause problems, surely?
> > >
> > > The bigger risk is probably to break drivers that rely on msleep(1)
> > > really being msleep( very long depending on HZ )
> > >
> > > But the only way to find out is to try it.
> >
> > Well, i am quite sure a lot of drivers will be broken. But well .. if
>
> If you know of specific examples you should list them so that
> they can be fixed proactively.

A bit hard to state, which all since quite some are RE'd. Well you can
hear the cries when it is broken. :)

Manu
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