linux-kernel - Re: lib/idr.c: initialize struct idr

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Message-ID: <Pine.LNX.4.64.0801272319570.540@sbz-30.cs.Helsinki.FI>
Date:	Sun, 27 Jan 2008 23:21:33 +0200 (EET)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	Vegard Nossum <vegard.nossum@...il.com>
cc:	Jim Houston <jim.houston@...r.com>, Ingo Molnar <mingo@...e.hu>,
	Tejun Heo <htejun@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: lib/idr.c: initialize struct idr_layer

Hi Vegard,

On Sun, 27 Jan 2008, Vegard Nossum wrote:
> Though in this case, idr_pre_get() actually *is* called first. Hmm...
> I think there's a pretty big chance that kmemcheck is at fault :-(

Depends on how you track object initialization. An object returned by 
kmem_cache_alloc() is always initialized if the cache it comes from has a 
constructor.

			Pekka
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