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Date: Sat, 10 May 2008 20:12:51 +0100
From: Al Viro <viro@ZenIV.linux.org.uk>
To: WANG Cong <xiyou.wangcong@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@osdl.org>,
       WANG Cong <wangcong@zeuux.org>
Subject: Re: [Patch 1/9] fs/exec.c: export free_arg_pages
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References: <1210254754206-git-send-email-xiyou.wangcong@gmail.com> <12102547782640-git-send-email-xiyou.wangcong@gmail.com>
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On Thu, May 08, 2008 at 09:52:26PM +0800, WANG Cong wrote:
> free_arg_pages() is used to clean the pages allocated by copy_strings_kenrel().
> Since copy_strings_kernel() is exported, so should be free_arg_pages().

Not really.  free_arg_pages() cleans them all at once; copy_strings_kernel()
adds to pile.  free_arg_pages() is called once for _all_ of them.  And that
happens in fs/exec.c, so it doesn't need to be exported.