From: Benjamin LaHaise <bcrl@kvack.org>
To: "David S. Miller" <davem@davemloft.net>
Cc: hpa@zytor.com, klibc@zytor.com, linux-kernel@vger.kernel.org
Subject: Re: sys_mmap2 on different architectures
Date: Thu, 23 Feb 2006 12:39:07 -0500 [thread overview]
Message-ID: <20060223173907.GF27682@kvack.org> (raw)
In-Reply-To: <20060222.164347.12864037.davem@davemloft.net>
On Wed, Feb 22, 2006 at 04:43:47PM -0800, David S. Miller wrote:
> Aha, that part I didn't catch. Thanks for the clarification
> Ben.
>
> I wonder why we did things that way with a fixed shift...
Without that trick, we'd have needed an extra parameter for the syscall
on x86, which is already at the maximum number of registers with 6
arguments. This was easier than changing the syscall ABI. =-)
-ben
--
"Ladies and gentlemen, I'm sorry to interrupt, but the police are here
and they've asked us to stop the party." Don't Email: <dont@kvack.org>.
next prev parent reply other threads:[~2006-02-23 17:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-22 21:45 sys_mmap2 on different architectures H. Peter Anvin
2006-02-22 21:54 ` David S. Miller
2006-02-22 22:00 ` H. Peter Anvin
2006-02-23 0:05 ` H. Peter Anvin
2006-02-23 0:40 ` David S. Miller
2006-02-23 0:41 ` David S. Miller
2006-02-23 0:14 ` Benjamin LaHaise
2006-02-23 0:22 ` H. Peter Anvin
2006-02-23 0:43 ` David S. Miller
2006-02-23 0:59 ` H. Peter Anvin
2006-02-23 1:03 ` David S. Miller
2006-02-23 1:06 ` H. Peter Anvin
2006-02-23 17:39 ` Benjamin LaHaise [this message]
2006-02-23 17:47 ` H. Peter Anvin
2006-02-23 2:56 ` Paul Mackerras
2006-02-23 3:35 ` H. Peter Anvin
2006-02-23 17:32 ` Ralf Baechle
2006-02-23 17:43 ` H. Peter Anvin
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