[Devel] Re: [PATCH] Define CLONE_NEWPID flag

[Andrew Morton]

On Wed, 21 Mar 2007 12:41:03 -0700
sukadev at us.ibm.com wrote:

> 
> This was discussed on containers and we thought it would be useful
> to reserve this flag.
> ---
> 
> From: Sukadev Bhattiprolu <sukadev at us.ibm.com>
> Subject: [PATCH] Define CLONE_NEWPID flag
> 
> Define CLONE_NEWPID flag that will be used to clone pid namespaces.
> 
> Signed-off-by: Sukadev Bhattiprolu <sukadev at us.ibm.com>
> ---
>  include/linux/sched.h |    1 +
>  1 file changed, 1 insertion(+)
> 
> Index: lx26-21-rc3-mm2/include/linux/sched.h
> ===================================================================
> --- lx26-21-rc3-mm2.orig/include/linux/sched.h	2007-03-20 20:13:19.000000000 -0700
> +++ lx26-21-rc3-mm2/include/linux/sched.h	2007-03-21 11:10:33.000000000 -0700
> @@ -26,6 +26,7 @@
>  #define CLONE_STOPPED		0x02000000	/* Start in stopped state */
>  #define CLONE_NEWUTS		0x04000000	/* New utsname group? */
>  #define CLONE_NEWIPC		0x08000000	/* New ipcs */
> +#define CLONE_NEWPID		0x10000000      /* New pid namespace */
>  

Do we actually have any need to reserve it at this time?  I'd have thought
that we could defer adding this until we have some code in-kernel which
uses it.

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