Re: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.47-20

From: Ingo Molnar
Date: Tue Jun 07 2005 - 14:31:44 EST



* Michal Schmidt <xschmi00@xxxxxxxxxxxxxxxxxx> wrote:

> Ingo Molnar wrote:
> > - performance feature: i've implemented a new scheduler feature called
> > 'delayed preemption', [...]
>
> So far it's only for i386. On x84_64 the kernel doesn't compile.
> Attached is my attempt to make it work on x86_64.
> The diff is against RT-V0.7.47-26.
>
> Warning: I don't know what I'm doing! But at least it compiles and boots
> for me.

i'd not have done it differently :) The most important bits are the
entry.S changes: to correctly update bit-tests to mask-tests and to
extend any byte-test to a word-test (because bit 9 falls outside of the
low byte) - you've done that all correctly. I've applied your patch and
have uploaded the -47-28 release. Boots fine on my x64 box too.

Ingo
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