Re: [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U0

[Dipankar Sarma]

On Thu, Oct 14, 2004 at 09:28:04PM +0200, Ingo Molnar wrote:
> 
> * Daniel Walker <dwalker@xxxxxxxxxx> wrote:
> 
> > When I was reviewing this it seemed like it would be possible to keep
> > RCU anonymous by moving the callback processing out of the tasklet .
> > The reason it was moved into a tasklet was to reduce latency. But if
> > you serialize it like you have, aren't you removing all the benefits
> > of the RCU type lock in those section that are converted to the new
> > API ?
> 
> only if compiling for PREEMPT_REALTIME. Given the overhead of
> PREEMPT_REALTIME i'm not sure RCU matters that much. But the nicest
> would be Dipankar's preemptible-RCU patch.
> 

I am swamped this week and racing against time to get some other
pending things done in time. I will look at the issue of RCU with
PREEMPT_REALTIME next week and try to help out.

Thanks
Dipankar
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