linux-kernel - Re: [Patch 4/21] Make fill

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Message-ID: <20101214155347.GB11400@redhat.com>
Date:	Tue, 14 Dec 2010 16:53:47 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	"Suzuki K. Poulose" <suzuki@...ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	Christoph Hellwig <hch@....de>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Daisuke HATAYAMA <d.hatayama@...fujitsu.com>,
	Andi Kleen <andi@...stfloor.org>,
	Roland McGrath <roland@...hat.com>,
	Amerigo Wang <amwang@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [Patch 4/21] Make fill_psinfo generic

On 12/14, Suzuki K. Poulose wrote:
>
> +	if (p->group_leader == current->group_leader) {
> +		if (copy_from_user(&psinfo->pr_psargs,
> +			           (const char __user *)mm->arg_start, len))
> +			return -EFAULT;
> +	} else {
> +		int bytes = access_process_vm(p, mm->arg_start,
> +						&psinfo->pr_psargs, len, 0);

The same.

Oleg.

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