lkml.org 
[lkml]   [2007]   [Apr]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [5/6] dynamically allocate IRQ stacks (was: Re: [-mm patch] i386: enable 4k stacks by default)
On Mon, Apr 30, 2007 at 12:49:04PM -0700, Zwane Mwaikambo wrote:
> On Mon, 30 Apr 2007, William Lee Irwin III wrote:
>
> > -static char softirq_stack[NR_CPUS * THREAD_SIZE]
> > - __attribute__((__aligned__(THREAD_SIZE)));
> > +static DEFINE_PER_CPU(char *, softirq_stack);
> > +static DEFINE_PER_CPU(char *, hardirq_stack);
> >
> > -static char hardirq_stack[NR_CPUS * THREAD_SIZE]
> > - __attribute__((__aligned__(THREAD_SIZE)));
> > +#ifdef CONFIG_VMALLOC_STACK
> > +static void * __init __alloc_irqstack(int cpu)
>
> How about just using DEFINE_PER_CPU and allowing the percpu code
> dynamically allocate.

That would require a true possible map first.

-Andi
-
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: 2007-04-30 22:09    [from the cache]
©2003-2011 Jasper Spaans