From: Christoph Lameter <clameter@sgi.com>
To: Johannes Weiner <hannes@saeurebad.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
penberg@cs.helsinki.fi
Subject: Re: Why is the kfree() argument const?
Date: Wed, 16 Jan 2008 08:48:07 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0801160831490.8188@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <87lk6pvii0.fsf@saeurebad.de>
On Wed, 16 Jan 2008, Johannes Weiner wrote:
> is there any reason why kfree() takes a const pointer just to degrade it
> with the call to slab_free()/__cache_free() again? The promise that the
> pointee is not modified is just bogus in this case, anyway, isn't it?
The object is modified in various cases f.e. because of poisoning or the
need to store the free pointer. So its bogus, yes. Pekka?
next prev parent reply other threads:[~2008-01-16 16:48 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-16 16:32 Why is the kfree() argument const? Johannes Weiner
2008-01-16 16:48 ` Christoph Lameter [this message]
2008-01-16 17:34 ` Bernd Petrovitsch
2008-01-16 17:45 ` Pekka J Enberg
2008-01-16 18:39 ` Linus Torvalds
2008-01-16 22:19 ` Johannes Weiner
2008-01-16 22:20 ` Christoph Lameter
2008-01-16 22:37 ` Johannes Weiner
2008-01-16 23:13 ` Johannes Weiner
2008-01-16 23:18 ` Linus Torvalds
2008-01-16 23:16 ` Linus Torvalds
2008-01-16 22:33 ` Steven Rostedt
[not found] <MDEHLPKNGKAHNMBLJOLKIEGIJJAC.davids@webmaster.com>
2008-01-17 21:25 ` Linus Torvalds
2008-01-17 22:28 ` David Schwartz
2008-01-17 23:10 ` Linus Torvalds
2008-01-18 0:56 ` David Schwartz
2008-01-18 1:15 ` Linus Torvalds
2008-01-18 5:02 ` David Schwartz
2008-01-18 15:38 ` Chris Friesen
2008-01-18 16:10 ` Linus Torvalds
2008-01-18 20:55 ` David Schwartz
2008-01-18 17:37 ` Olivier Galibert
2008-01-18 18:06 ` DM
2008-01-18 7:51 ` Giacomo Catenazzi
2008-01-18 8:20 ` Giacomo Catenazzi
2008-01-18 13:53 ` Andy Lutomirski
2008-01-18 17:24 ` Olivier Galibert
2008-01-18 22:29 ` J.A. Magallón
2008-01-18 23:44 ` Krzysztof Halasa
2008-01-18 13:54 ` Andy Lutomirski
2008-01-18 19:14 ` Vadim Lobanov
2008-01-18 19:31 ` Zan Lynx
2008-01-18 19:55 ` Vadim Lobanov
2008-01-18 8:30 ` Vadim Lobanov
2008-01-18 9:48 ` Jakob Oestergaard
2008-01-18 11:47 ` Giacomo A. Catenazzi
2008-01-18 14:39 ` Jakob Oestergaard
2008-01-18 19:06 ` Vadim Lobanov
2008-01-18 13:31 ` Björn Steinbrink
2008-01-18 14:53 ` Jakob Oestergaard
-- strict thread matches above, loose matches on Subject: below --
2008-01-18 12:45 ecolbus
2008-01-18 15:20 ` Giacomo A. Catenazzi
2008-01-18 16:45 ecolbus
2008-01-18 18:20 ` Olivier Galibert
2008-01-18 19:10 ecolbus
[not found] <fa.cHMztHfqJXv7vw5O0nQ8SdTrma0@ifi.uio.no>
[not found] ` <fa.V9M+5l8C/um5KEiBtZOjbJDQmu4@ifi.uio.no>
2013-01-12 19:18 ` antoine.trux
2013-01-13 8:10 ` Chen Gang F T
2013-01-13 17:41 ` Guenter Roeck
2013-01-14 1:45 ` Chen Gang F T
2013-01-13 20:54 ` Cong Ding
2013-01-14 1:18 ` Chen Gang F T
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