Re: [RFC PATCH 11/15] x86: Nohz task support

[Frederic Weisbecker]

On Mon, Dec 20, 2010 at 05:23:19PM +0100, Peter Zijlstra wrote:
> On Mon, 2010-12-20 at 16:24 +0100, Frederic Weisbecker wrote:
> > 
> > Implement the thread flag, syscalls and exception hooks for
> > nohz task support.
> > 
> 
> I saw:
>  - syscall
>  - do_int3
>  - do_debug (int1)
>  - #PF
> 
> So where's all other interrupts?

No need to handle them.

We have:

rcu_irq_enter() rcu_irq_exit() rcu_nmi_enter() rcu_nmi_exit()
and they already act as pauses into extended quiescent states, which
is enough for our needs.
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