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Subject: RE: [PATCH]: Don't force O_LARGEFILE for 32 bit processes on ia64 - 2.6.12-rc3
Date: Tue, 10 May 2005 23:45:59 +0200
Message-ID: <2C83850C013A2540861D03054B478C0606112A22@hasmsx403.ger.corp.intel.com>
Thread-Topic: [PATCH]: Don't force O_LARGEFILE for 32 bit processes on ia64 - 2.6.12-rc3
Thread-Index: AcVVkR/VizFsjk51RMaRXiiLnqOy8wAFvBkA
From: "Zach, Yoav" <yoav.zach@intel.com>
To: "David S. Miller" <davem@davemloft.net>, <anton@samba.org>
Cc: <yoav_zach@yahoo.com>, <torvalds@osdl.org>, <linux-kernel@vger.kernel.org>,
       "Zach, Yoav" <yoav.zach@intel.com>
Sender: linux-kernel-owner@vger.kernel.org
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>-----Original Message-----
>From: David S. Miller [mailto:davem@davemloft.net] 
>Sent: Tuesday, May 10, 2005 21:47
>To: anton@samba.org
>Cc: yoav_zach@yahoo.com; torvalds@osdl.org; 
>linux-kernel@vger.kernel.org; Zach, Yoav
>Subject: Re: [PATCH]: Don't force O_LARGEFILE for 32 bit 
>processes on ia64 - 2.6.12-rc3
>
>
>I really think these "emulators" should execute the compat
>syscalls and not the native 64-bit ones.  That is where
>all of these problems come from.
>

Compat syscalls are not accessible to userland. Changing that
will be a major change, with impacts on security and all. I'm
not sure it worth the effort.

>And yes, as Anton stated, you need to audit every platform's
>compat layer to make sure this PER_LINUX32 thing doesn't break
>anything for them.
>

The patch has no impact at all on any arch other than ia64.

Thanks,
Yoav.

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