linux-kernel - Re: [PATCH 1/2] posix-timers: move global timer id management to signal

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Message-ID: <1316472096.2455.27.camel@edumazet-laptop>
Date:	Tue, 20 Sep 2011 00:41:36 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/2] posix-timers: move global timer id management to
 signal_struct v4

Le mardi 20 septembre 2011 à 00:36 +0200, Andi Kleen a écrit :
> > 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.
> 

I see. Oh yes, you work for a known hardware vendor.

> 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.

I'll provide not a hack but a clean patch for this.

I read once idr code, and its not messy at all.



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