Re: [Linux-ia64] O(1) MQ scheduler J9 patch for IA64

Keith Owens
2002-02-02T00:21:34Z

On Fri, 1 Feb 2002 15:45:32 +0100 (MET),
Erich Focht <efocht@ess.nec.de> wrote:
>please find attached a patch which aplies to
>
>linux-2.4.17 + kdb_common + ia64_patch + kdb_ia64 + sched-O1-2.4.17-J9.patch
>
>I had to add a function smp_call_function_nowait which sends an IPI and
>returns immediately in order to get rid of a IA64-specific race condition
>when the mmu_context wraps around. Now it makes a very stable and fast
>impression, interactive work is even possible while doing a "hackbench
>55" and ping flooding the machine... Tested on 2 CPU BigSur, 4 CPU LION,
>16 CPU AzusA.

Why is there a global change of current->processor to current->cpu?
That has knock on effects because #define cpu and references to that
macro also have to be changed. I don't see any benefit.