linux-kernel - Re: [RFC][PATCH -mm 2/3] freezer: Introduce freezer

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Date:	Tue, 24 Apr 2007 01:10:34 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, ego@...ibm.com,
	linux-kernel@...r.kernel.org, vatsa@...ibm.com, paulmck@...ibm.com,
	pavel@....cz
Subject: Re: [RFC][PATCH -mm 2/3] freezer: Introduce freezer_flags

On Tuesday, 24 April 2007 00:55, Oleg Nesterov wrote:
> On 04/24, Rafael J. Wysocki wrote:
> >
> > Should I clear it in dup_task_struct() or is there a better place?
> 
> I personally think we should do this in dup_task_struct(). In fact, I believe
> it is better to replace the
> 
> 	*tsk = *orig;
> 
> with some helper (like setup_thread_stack() below), and that helper clears
> ->freezer_flags. Say, copy_task_struct().

Hmm, wouldn't that be overkill?  copy_task_struct() would have to do
*tsk = *orig anyway, and we only need to clear one field apart from this.

Some other fields are cleared towards the end of dup_task_struct(), so perhaps
we could clear freezer_flags in there too?

Rafael
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