lkml.org 
[lkml]   [2006]   [Dec]   [7]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateThu, 7 Dec 2006 10:17:41 -0800
FromAndrew Morton <>
SubjectRe: [PATCH] Export current_is_keventd() for libphy
On Thu, 7 Dec 2006 09:57:15 -0800
Andrew Morton <akpm@osdl.org> wrote:

> On Thu, 07 Dec 2006 12:05:38 -0500
> Jeff Garzik <jeff@garzik.org> wrote:
> 
> > Yes, I merged the code, but looking deeper at phy its clear I missed 
> > some things.
> > 
> > Looking into libphy's workqueue stuff, it has the following sequence:
> > 
> > 	disable interrupts
> > 	schedule_work()
> > 
> > 	... time passes ...
> > 	... workqueue routine is called ...
> > 
> > 	enable interrupts
> > 	handle interrupt
> > 
> > I really have to question if a workqueue was the best choice of 
> > direction for such a sequence.  You don't want to put off handling an 
> > interrupt, with interrupts disabled, for a potentially unbounded amount 
> > of time.
> 
> That'll lock the box on UP, or if the timer fires on the current CPU?

oh. "disable interrupts" == disable_irq(), not local_irq_disable()?

Not so bad ;)
-
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: 2006-12-07 18:23    [W:0.518 / U:0.980 seconds]
©2003-2008 Jasper Spaans