lkml.org 
[lkml]   [2004]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: RCU question
On Fri, 10 Dec 2004, George Anzinger wrote:

> > Well, softirqs should really be preemptible if you care about RT task
> > latency. Ingo's patches have had this for months. Works great. Maybe
> > it's time to push it upstream.
>
> Yes, I understand, and soft_irq() does turn on interrupts...
> I was thinking of something like:
>
> while(softirq_pending()) {
> local_irq_enable();
> do_softirq();
> local_irq_disable();
> }
> <proceed to idle hlt...>

But that's a deadlock and if you enable interrupts you race.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:08    [W:0.112 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site