From: "David S. Miller" <davem@redhat.com>
To: ak@muc.de
Cc: akpm@digeo.com, linux-kernel@vger.kernel.org, anton@samba.org,
schwidefsky@de.ibm.com, davidm@hpl.hp.com, matthew@wil.cx,
ralf@linux-mips.org, rth@redhat.com
Subject: Re: Reduce struct page by 8 bytes on 64bit
Date: Wed, 16 Apr 2003 07:58:37 -0700 (PDT) [thread overview]
Message-ID: <20030416.075837.03516293.davem@redhat.com> (raw)
In-Reply-To: <20030416145853.GA2421@averell>
From: Andi Kleen <ak@muc.de>
Date: Wed, 16 Apr 2003 16:58:53 +0200
In this case part of the unsigned long could be accessed directly
using the aliasing.
They use the same ATOMIC_HASH() for both atomic_t's and bitops.
I don't see how an alias can be generated. This thing must
work for any ordering of unsigned long *'s and atomic_t's.
next prev parent reply other threads:[~2003-04-16 14:53 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-15 11:24 Reduce struct page by 8 bytes on 64bit Andi Kleen
2003-04-16 12:45 ` David S. Miller
2003-04-16 13:22 ` Jakub Jelinek
2003-04-16 14:07 ` Andi Kleen
2003-04-16 14:26 ` David S. Miller
2003-04-16 14:43 ` Andi Kleen
2003-04-16 14:38 ` David S. Miller
2003-04-16 14:58 ` Andi Kleen
2003-04-16 14:58 ` David S. Miller [this message]
2003-04-16 14:55 ` Matthew Wilcox
2003-04-16 15:04 ` Andi Kleen
2003-04-16 15:00 ` David S. Miller
2003-04-16 15:11 ` Matthew Wilcox
2003-04-16 20:35 ` Andrew Morton
2003-04-16 21:26 ` Matthew Wilcox
2003-04-16 21:43 ` Andrew Morton
2003-04-16 21:40 ` David S. Miller
2003-04-17 15:20 ` Andi Kleen
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