linux-kernel - Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

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Message-ID: <6599ad830808261540j2b5c46cdsc42e26fa43f3f8d1@mail.gmail.com>
Date:	Tue, 26 Aug 2008 15:40:48 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Lai Jiangshan" <laijs@...fujitsu.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Linux Containers" <containers@...ts.linux-foundation.org>
Subject: Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

On Mon, Aug 25, 2008 at 10:22 PM, Lai Jiangshan <laijs@...fujitsu.com> wrote:
>> But improving the current code has been on my todo list for a while.
>> My thought on the best way to fix it is to use a proper seq_file -
>> that would remove the issues that you have currently with the
>> "unconsumed" portion of the output.
>
> But for my poor knowledge we always have to handle "unconsumed portion"
> for nonseekable file in all different way. In my binary search based
> solving, I have to handle unconsumed part for a pid and bring in
> some complicated. This is really a disadvantage as you pointed out.

I meant that the seq_file code could handle the "unconsumed" portion
for you, rather than you having to manage it explicitly.

Paul
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