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Date: Sun, 1 Apr 2012 18:53:39 +0200
From: Andi Kleen <andi@firstfloor.org>
To: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Andi Kleen <andi@firstfloor.org>, "H. Peter Anvin" <hpa@zytor.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Oleg Nesterov <oleg@redhat.com>,
        Jan Kratochvil <jan.kratochvil@redhat.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Extend core dump note section to contain file names of mapped files
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> It uses seq_printf(). It will need refactoring if we would
> want to use it for purposes other than /proc pseudo-file
> generation.

seq_file just writes to a buffer. I'm sure there's a way to get at that
buffer. In theory you could also just copy using read/write and a small temp
buffer. The only problem would be to stop it taking the vm sem.

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.