Re: [PATCH 6/6] Makes procs file writable to move all threads by tgid at once

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To: Paul Menage <menage@xxxxxxxxxx>
Subject: Re: [PATCH 6/6] Makes procs file writable to move all threads by tgid at once
From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Date: Thu, 06 Aug 2009 12:34:13 +0200
Cc: Benjamin Blum <bblum@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <6599ad830908060328y21a008c1pc5ed5c27e0ec905d@xxxxxxxxxxxxxx>

On Thu, 2009-08-06 at 03:28 -0700, Paul Menage wrote:

> OK, well if lockdep can't currently handle the "writer takes a lock on
> every thread" model,

I haven't read what this is about, but simply looking at that sentence
makes me want to hit someone with a cluebat. Have you any idea how
expensive that is?

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