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    SubjectRe: [PATCH] Avoid moving tasks when a schedule can be made.
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    On Wed, 2006-02-01 at 15:22 +0100, Ingo Molnar wrote:
    > * Nick Piggin <nickpiggin@yahoo.com.au> wrote:
    >
    > > >rwsems/rwlocks are not an issue in -rt because they have different
    > > >semantics there - and thus readers cannot amass. I do think rwsems and
    > > >rwlocks have pretty nasty characteristics [non-latency ones] for the
    > > >mainline kernel's use too, but that's not being argued here ;)
    > >
    > > But all I'm saying is that while there are equivalent magnitudes of
    > > interrupts off regions in mainline, there is little point introducing
    > > a hack like this to "solve" one of them.
    >
    > nobody is arguing to have this hack included. Hacks are to be introduced
    > into the scheduler only over my cold dead body ;-) Steve only sent this
    > as an RFC thing, to raise the issue.

    I'll confirm this. Even in my submission, I stated that this was
    probably wrong, and wanted comments (thank you btw for commenting :). I
    just wanted to show where the problem was, and that the problem went
    away with the "hack".

    -- Steve


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