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Date: Tue, 20 Sep 2011 00:36:49 +0200
From: Andi Kleen <andi@firstfloor.org>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>, tglx@linutronix.de,
        linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
        Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 1/2] posix-timers: move global timer id management to signal_struct v4
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> This means idr_pre_get() consumes 6528 bytes of spare space per process,
> even if only one posix timer is used.

And? Given the now normal bloat level in the kernel that's small
potatoes.

The idr code is so messy that I don't really want to touch it.

If you think it is that important feel free to do a followon 
patch.

If it's that big a problem I'm sure a general solution would
be better than some quick hack for a special case.

-Andi