* Steven Rostedt <rost...@goodmis.org> wrote:
> On Tue, 19 Sep 2023 20:31:50 +0200
> Thomas Gleixner <t...@linutronix.de> wrote:
>
> > The removal of cond_resched() might cause latencies, but then I doubt
> > that these museus pieces are used for real work :)
>
> We could simply leave the cond_resched() around but defined as nops for
> everything but the "nostalgia club" to keep them from having any regressions.
That's not a good idea IMO, it's an invitation for accelerated rate bitrot
turning cond_resched() meaningless very quickly.
We should remove cond_resched() - but probably not as the first step. They
are conceptually independent of NEED_RESCHED_LAZY and we don't *have to*
remove them straight away.
By removing cond_resched() separately there's an easily bisectable point to
blame for any longer latencies on legacy platforms, should any of them
still be used with recent kernels.
Thanks,
Ingo
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