From: Thomas Gleixner <tglx@linutronix.de>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Christoph Lameter <clameter@sgi.com>,
Satyam Sharma <satyam@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Arjan van de Ven <arjan@infradead.org>,
Tim Bird <tim.bird@am.sony.com>,
linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: kfree(0) - ok?
Date: Sat, 18 Aug 2007 01:40:22 +0200 [thread overview]
Message-ID: <1187394022.7007.133.camel@chaos> (raw)
In-Reply-To: <84144f020708171442x52b18722k2971ceef96d3e72@mail.gmail.com>
On Sat, 2007-08-18 at 00:42 +0300, Pekka Enberg wrote:
> On 8/18/07, Christoph Lameter <clameter@sgi.com> wrote:
> > That was merged over my objections. IMHO ksize(NULL) should fail since we
> > are determining the size of an unallocated object.
>
> Agreed, especially as we have real zero-sized objects returned from
> kmalloc() et al now.
Do we really ?
If yes, who invented this 1980s reminiscence, where you got valid
pointers for malloc(0) ?
This is completely stupid. You do not go into a bar and order an empty
glass, just because you might eventually become thirsty later.
tglx
next prev parent reply other threads:[~2007-08-17 23:40 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-14 22:59 kfree(0) - ok? Tim Bird
2007-08-14 22:55 ` Arjan van de Ven
2007-08-14 23:21 ` Jason Uhlenkott
2007-08-15 7:28 ` Jan Engelhardt
2007-08-15 8:37 ` Rene Herman
2007-08-15 9:20 ` Jan Engelhardt
2007-08-15 9:43 ` Jason Uhlenkott
2007-08-15 9:58 ` Rene Herman
2007-08-15 10:20 ` Jan Engelhardt
2007-08-15 10:27 ` Rene Herman
2007-08-15 13:58 ` Kyle Moffett
2007-08-15 14:06 ` Jan Engelhardt
2007-08-15 14:34 ` Kyle Moffett
2007-08-15 16:01 ` H. Peter Anvin
2007-08-15 8:52 ` Jason Uhlenkott
2007-08-15 9:18 ` Andreas Schwab
2007-08-15 9:32 ` Giacomo A. Catenazzi
2007-08-14 23:42 ` Satyam Sharma
2007-08-15 0:19 ` Christoph Lameter
2007-08-17 18:22 ` Andrew Morton
2007-08-17 18:31 ` Arjan van de Ven
2007-08-17 18:50 ` Satyam Sharma
2007-08-17 18:37 ` Jan Engelhardt
2007-08-17 20:43 ` Christoph Lameter
2007-08-17 21:17 ` Satyam Sharma
2007-08-17 21:32 ` Satyam Sharma
2007-08-17 21:13 ` Satyam Sharma
2007-08-17 21:14 ` Christoph Lameter
2007-08-17 21:42 ` Pekka Enberg
2007-08-17 23:22 ` Christoph Lameter
2007-08-17 23:40 ` Thomas Gleixner [this message]
2007-08-18 0:02 ` Satyam Sharma
2007-08-18 1:03 ` Christoph Lameter
2007-08-18 8:10 ` Pekka Enberg
2007-08-18 8:21 ` Jan Engelhardt
2007-08-17 21:46 ` Satyam Sharma
2007-08-14 23:13 ` Satyam Sharma
[not found] <fa.oMJ6o9vN0dnAoFR83/o4hg1EptE@ifi.uio.no>
2007-08-14 23:05 ` Robert Hancock
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