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    SubjectRe: [PATCH] use per cpu data for single cpu ipi calls
    On Thu, 2009-01-29 at 12:13 +0100, Ingo Molnar wrote:
    > * Peter Zijlstra <> wrote:
    > > > Can generic_smp_call_function_single_interrupt() ever see
    > > > CSD_FLAG_ALLOC set now? If not, that kfree can go away.
    > >
    > > Like said above, removing that kmalloc will hurt people.
    > the whole promise of generic-IPI seems to dwindle and we'll get back to
    > roughly where we started out from.

    I'd not go that far, the per-cpu csd is a nice fallback, but removing
    that kmalloc is just silly.

    And I see no reason why arch specific could do any better (aside from
    sparc which has fancy ipis).

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      Last update: 2009-01-29 12:45    [W:0.028 / U:6.764 seconds]
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