linux-kernel - Re: [PATCH] mm/sl[aou]b: make kfree() aware of error pointers

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Message-ID: <alpine.DEB.2.11.1409100921060.32538@gentwo.org>
Date:	Wed, 10 Sep 2014 09:22:23 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Jiri Kosina <jkosina@...e.cz>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Theodore Ts'o <tytso@....edu>
Subject: Re: [PATCH] mm/sl[aou]b: make kfree() aware of error pointers

On Wed, 10 Sep 2014, Jiri Kosina wrote:

> We obviously don't, as such code will be causing explosions. This is meant
> as a prevention of problems such as the one that has just been fixed in
> ext4.

So we actually think that it is okay to pass an error pointer to kfree
and silently ignore that?

Are we thinking about just accepting any pointer in kfree and ignore
invalid ones?
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