From: Andi Kleen <ak@muc.de>
To: "David S. Miller" <davem@redhat.com>
Cc: rth@twiddle.net, jakub@redhat.com, ak@muc.de,
torvalds@transmeta.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Use __attribute__((malloc)) for gcc 3.2
Date: Mon, 7 Oct 2002 12:56:22 +0200 [thread overview]
Message-ID: <20021007105622.GA24530@averell> (raw)
In-Reply-To: <20021007.032900.51704978.davem@redhat.com>
On Mon, Oct 07, 2002 at 12:29:00PM +0200, David S. Miller wrote:
> From: Richard Henderson <rth@twiddle.net>
> Date: Mon, 7 Oct 2002 03:05:41 -0700
>
> On Sun, Sep 29, 2002 at 04:01:13PM -0400, Jakub Jelinek wrote:
> > Does this matter when the kernel is compiled with -fno-strict-aliasing?
>
> Yes. The malloc attribute uses REG_NOALIAS, not alias sets.
>
> Great, I'm all for Andi's patch in that case.
I retested it on gcc 3.2 and it unfortunately doesn't make any difference
(resulting kernel is byte-for-byte identical). So it looks like with
current gcc it isn't worth the effort.
-Andi
next prev parent reply other threads:[~2002-10-07 10:51 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-29 15:27 [PATCH] Use __attribute__((malloc)) for gcc 3.2 Andi Kleen
2002-09-29 16:24 ` Adrian Bunk
2002-09-29 17:26 ` Christoph Hellwig
2002-09-30 0:11 ` David S. Miller
2002-09-30 0:29 ` Andi Kleen
2002-09-29 20:01 ` Jakub Jelinek
2002-09-30 0:04 ` Andi Kleen
2002-10-07 10:05 ` Richard Henderson
2002-10-07 10:29 ` David S. Miller
2002-10-07 10:56 ` Andi Kleen [this message]
2002-10-07 11:07 ` Arjan van de Ven
2002-10-07 11:45 ` Richard Henderson
2002-10-07 12:27 ` Andi Kleen
2002-09-29 23:51 ` Anton Blanchard
2002-09-30 0:31 ` Andi Kleen
2002-09-30 1:07 ` Daniel Jacobowitz
2002-10-02 13:46 ` Pavel Machek
[not found] <20020929152731.GA10631@averell.suse.lists.linux.kernel>
[not found] ` <20020929182643.C8564@infradead.org.suse.lists.linux.kernel>
2002-09-29 19:09 ` Andi Kleen
2002-09-29 20:20 ` Adrian Bunk
2002-09-30 0:21 ` David S. Miller
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