linux-kernel - Re: [PATCH] lib/idr.c: Zero memory properly in idr_remove

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Date:	Wed, 14 Jan 2009 10:52:57 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Pekka Enberg <penberg@...helsinki.fi>,
	Manfred Spraul <manfred@...orfullife.com>, krh@...hat.com,
	dcm@....org, Nadia.Derbey@...l.net,
	linux1394-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, paulmck@...ibm.com, stable@...nel.org
Subject: Re: [PATCH] lib/idr.c: Zero memory properly in idr_remove_all

I wrote:
> Your fix only clears idr_layers which an idr_get_new*() pulls out of the
> idr_layer_cache, but not any one which it pulls out of the idr's own
> free list.
> 
> Hmm, OK.  Seems to be harmless as long as idr users don't start to add
> new entries to an idr after they did idr_remove_all()

...on this very same idr instance.
-- 
Stefan Richter
-=====-==--= ---= -===-
http://arcgraph.de/sr/
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