linux-kernel - Re: [PATCH -mm 2/2] Introduce freezer flags

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Message-ID: <20070427161940.GB1046@uranus.ravnborg.org>
Date:	Fri, 27 Apr 2007 18:19:40 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Gautham R Shenoy <ego@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>, Oleg Nesterov <oleg@...sign.ru>,
	Pavel Machek <pavel@....cz>,
	Pekka Enberg <penberg@...helsinki.fi>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -mm 2/2] Introduce freezer flags

On Fri, Apr 27, 2007 at 05:40:16PM +0200, Rafael J. Wysocki wrote:

> --- linux-2.6.21-rc7-mm2.orig/kernel/fork.c
> +++ linux-2.6.21-rc7-mm2/kernel/fork.c
> @@ -921,11 +921,14 @@ static inline void copy_flags(unsigned l
>  {
>  	unsigned long new_flags = p->flags;
>  
> -	new_flags &= ~(PF_SUPERPRIV | PF_NOFREEZE);
> +	new_flags &= ~PF_SUPERPRIV;
>  	new_flags |= PF_FORKNOEXEC;
>  	if (!(clone_flags & CLONE_PTRACE))
>  		p->ptrace = 0;
>  	p->flags = new_flags;
> +#ifdef CONFIG_FREEZER
> +	p->freezer_flags = 0;
> +#endif
>  }
Could we have a dedicated clear_freeze_flag() so we could drop the ifdef?

> +		clear_freeze_flag(p);

Or maybe we have it already?


	Sam
-
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