Messages in this thread | | | Date | Wed, 11 Feb 2009 18:31:31 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/8] git pull request for tip/tracing/core |
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* Steven Rostedt <rostedt@goodmis.org> wrote:
> On Wed, 11 Feb 2009, Ingo Molnar wrote: > > > > > > I just looked at alpha and arm, I'm now looking at ia64. And this could > > > be an issue, since it has 14 bits for hard irqs. > > > > > > What would be the impact to make the preempt count a long? > > > > Assembly code has to be audited i guess, whether it's treated as an int anywhere. > > Should work i guess. > > Before we go and make the change, Peter brought up a good point on IRC. Is > there any reason that ia64 needs 1 << 14 IRQs? That's 16384! > > Perhaps the better solution wolud be (if possible), to simply lower the > number of bits.
i'm the wrong person to be asked about that. (Cc:-ed the right people)
Ingo
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