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From: Andi Kleen <andi@firstfloor.org>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Andi Kleen <andi@firstfloor.org>, Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] x86_64: Implement personality ADDR_LIMIT_32BIT
Date: Mon, 6 Oct 2008 15:26:51 +0200	[thread overview]
Message-ID: <20081006132651.GG3180@one.firstfloor.org> (raw)
In-Reply-To: <20081006101221.GA21183@localhost.localdomain>

> > Linux interfaces are not supposed to be "interfaces for qemu" but generally
> > applicable interfaces.
> 
> I know. What about adding both personality() and flag for shmat()? I can
> prepare patch that implement flag for shmat().

It would be better to just fix all calls in qemu than
to add a new personality. There aren't that many anyways.

personality is really more a kludge for bug-to-bug compatibility
with old binaries (that is where the 3GB personality came from
to work around bugs in some old JVMs that could not deal with a full 4GB
address space), it shouldn't be really used for anything new. 

-Andi
-- 
ak@linux.intel.com

  reply	other threads:[~2008-10-06 13:20 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-03  7:04 Kirill A. Shutemov
2008-10-03  8:02 ` Ingo Molnar
2008-10-03  9:25   ` Kirill A. Shutemov
2008-10-03 12:44     ` Arjan van de Ven
2008-10-03 12:58       ` Kirill A. Shutemov
2008-10-06  6:13     ` Andi Kleen
2008-10-06  8:17       ` Kirill A. Shutemov
2008-10-06  8:42         ` Andi Kleen
2008-10-06  9:17           ` Kirill A. Shutemov
2008-10-06  9:56             ` Andi Kleen
2008-10-06 10:12               ` Kirill A. Shutemov
2008-10-06 13:26                 ` Andi Kleen [this message]
2008-10-06 14:37                   ` [PATCH, RFC] shmat: introduce flag SHM_MAP_HINT Kirill A. Shutemov
2008-10-06 19:29                     ` Andi Kleen
2008-10-07  6:57                       ` Kirill A. Shutemov
2008-10-07  6:57                       ` [PATCH, RFC, v2] " Kirill A. Shutemov
2008-10-07  8:20                         ` Andi Kleen
2008-10-07 10:09                           ` Kirill A. Shutemov
2008-10-07 11:26                             ` Andi Kleen
2008-10-07 11:23                               ` Kirill A. Shutemov
2008-10-07 14:38                               ` Hugh Dickins
2008-10-07 15:10                                 ` Andi Kleen
2008-10-07 11:08                     ` [PATCH, RFC] " KOSAKI Motohiro
2008-10-07 11:21                       ` Andi Kleen
2008-10-07 11:21                         ` Kirill A. Shutemov
2008-10-07 11:26                         ` KOSAKI Motohiro
2008-10-07 11:30                           ` Kirill A. Shutemov
2008-10-07 11:50                             ` Andi Kleen
2008-10-07 11:24                       ` Kirill A. Shutemov
2008-10-07 12:31                         ` Alan Cox
2008-10-07 13:14                           ` Andi Kleen
2008-10-03  9:33   ` [PATCH] x86_64: Implement personality ADDR_LIMIT_32BIT Kirill A. Shutemov

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