public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* question about cpu_active_mask
@ 2013-12-17 21:01 Mark Hounschell
  2013-12-18  4:00 ` Mike Galbraith
       [not found] ` <294848935.31685.1387339274917.JavaMail.root@mx2.compro.net>
  0 siblings, 2 replies; 3+ messages in thread
From: Mark Hounschell @ 2013-12-17 21:01 UTC (permalink / raw)
  To: linux-kernel

I hope it is OK to ask a newbie question here. I'm trying to better 
understand the boot process. I can't seem to find where in the kernel 
sources the cpu_active_mask (defined in include/linux/cpumask.h) gets 
populated. I can see that it does get populated as it brings cpus online 
but it is not obvious to me where. I'm using a 32 bit 3.4.x flavor kernel.

Sorry for the noise and thanks for any pointers

Regards
Mark

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: question about cpu_active_mask
  2013-12-17 21:01 question about cpu_active_mask Mark Hounschell
@ 2013-12-18  4:00 ` Mike Galbraith
       [not found] ` <294848935.31685.1387339274917.JavaMail.root@mx2.compro.net>
  1 sibling, 0 replies; 3+ messages in thread
From: Mike Galbraith @ 2013-12-18  4:00 UTC (permalink / raw)
  To: markh; +Cc: linux-kernel

On Tue, 2013-12-17 at 16:01 -0500, Mark Hounschell wrote: 
> I hope it is OK to ask a newbie question here. I'm trying to better 
> understand the boot process. I can't seem to find where in the kernel 
> sources the cpu_active_mask (defined in include/linux/cpumask.h) gets 
> populated. I can see that it does get populated as it brings cpus online 
> but it is not obvious to me where. I'm using a 32 bit 3.4.x flavor kernel.

Try git grep set_cpu_active.

-Mike


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: question about cpu_active_mask
       [not found] ` <294848935.31685.1387339274917.JavaMail.root@mx2.compro.net>
@ 2013-12-18 12:51   ` Mark Hounschell
  0 siblings, 0 replies; 3+ messages in thread
From: Mark Hounschell @ 2013-12-18 12:51 UTC (permalink / raw)
  To: Mike Galbraith; +Cc: linux-kernel

On 12/17/2013 11:00 PM, Mike Galbraith wrote:
> On Tue, 2013-12-17 at 16:01 -0500, Mark Hounschell wrote:
>> I hope it is OK to ask a newbie question here. I'm trying to better
>> understand the boot process. I can't seem to find where in the kernel
>> sources the cpu_active_mask (defined in include/linux/cpumask.h) gets
>> populated. I can see that it does get populated as it brings cpus online
>> but it is not obvious to me where. I'm using a 32 bit 3.4.x flavor kernel.
>
> Try git grep set_cpu_active.
>

Got it. Thanks for that.

Regards
Mark

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-12-18 12:51 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-12-17 21:01 question about cpu_active_mask Mark Hounschell
2013-12-18  4:00 ` Mike Galbraith
     [not found] ` <294848935.31685.1387339274917.JavaMail.root@mx2.compro.net>
2013-12-18 12:51   ` Mark Hounschell

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox