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SubjectRE: [patch] scheduler bugfix, SMP, 2.4.0-test7


On Mon, 28 Aug 2000, Dimitris Michailidis wrote:
>
> On 28-Aug-2000 Linus Torvalds wrote:
> > I think the right solution is to completely split up "schedule()" into two
> > different functions (which just share 99% of the code), and basically have
> > the idle thread call the _other_ schedule. The one that never does the
> > test at all.
>
> Just to clarify, you're suggesting having a schedule_and_btw_current_is_idle
> and calling this from cpu_idle(), right?

Right.

> In this case the two schedules
> would share quite a bit less than 99% of the code. Idle tasks don't have to
> deal with kernel lock, ->state, SCHED_YIELD and RT exhaustion, to name a few.

Good point. Although it might be hard to sanely still share the actual
code (I'd hate to get a bigger icache footprint, so I'd like the common
code to be _truly_ common, not just on a source level).

But it looks like the thing would work.

Linus

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