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SubjectRe: io apic + tsc = slowdown (bugreport + possible fix)
On Tue, 29 Jun 2004, john stultz wrote:

> > Please folks do read the sources sometimes -- I've been repeatedly
> > clarifying these bits while they are all documented in the sources,
> > sigh...
>
> Whoops, sorry, I had the impression the patch was targeted against 2.6,

It works the same way for both series.

> where there is no do_slow_gettimeoffset() and the only user of timer_ack
> is in do_timer_interrupt().

A quick search reveals the bits were moved to do_timer_overflow() in
include/asm-i386/mach-default/do_timer.h which is used by
arch/i386/kernel/timers/timer_pit.c -- I suppose the comment in
arch/i386/kernel/time.c needs an update then.

> So am I incorrect that the TSC bits can be dropped for the 2.6 version
> of the patch?

You are, sorry.

Maciej
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