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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Andi Kleen <andi@firstfloor.org>, Ingo Molnar <mingo@redhat.com>,
	Arjan van de Ven <arjan@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH, RFC] shmat: introduce flag SHM_MAP_HINT
Date: Tue, 7 Oct 2008 13:31:32 +0100	[thread overview]
Message-ID: <20081007133132.69f69cc0@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20081007112418.GC5126@localhost.localdomain>

> > Honestly, I don't like that qemu specific feature insert into shmem core.
> > At least, this patch is too few comments.
> > Therefore, an develpper can't understand why SHM_MAP_HINT exist.
> > 
> > I think this patch description is too short and too poor.
> > I don't like increasing mysterious interface.
> 
> Sorry for it. I'll fix it in next patch version.

I also don't see the point of this interface. We have POSIX shared memory
objects in Linux which are much cleaner and neater. They support mmap()
and mmap supports address hints.

There seems to be no reason at all to add further hacks to the historical
ugly SYS5 interface.

Alan

  reply	other threads:[~2008-10-07 12:33 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-03  7:04 [PATCH] x86_64: Implement personality ADDR_LIMIT_32BIT 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
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 [this message]
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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