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From: Arjan van de Ven <arjanv@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: thomas.schlichter@web.de, thoffman@arnor.net,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Tim Hockin <thockin@sun.com>
Subject: Re: 2.6.2-rc2-mm2
Date: Fri, 30 Jan 2004 20:55:15 +0100	[thread overview]
Message-ID: <20040130195515.GB2977@devserv.devel.redhat.com> (raw)
In-Reply-To: <20040130114701.18aec4e8.akpm@osdl.org>

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On Fri, Jan 30, 2004 at 11:47:01AM -0800, Andrew Morton wrote:
> Arjan van de Ven <arjanv@redhat.com> wrote:
> >
> > 
> > directly calling sys_ANYTHING sounds really wrong to me...
> > 
> 
> It's a philosophical thing.  Is a kernel thread like a user process which
> happens to be running from the kernel or it is a piece of mainline kernel
> code which happens to have its own execution context?  I rather favour the
> latter...
> 
> In this case it looks like it will just happen to work, because
> nfsd_setuser() is executed by nfsd, and kernel threads are allowed to do
> copy_from_user() with the source in kernel memory.  ick.

I didn't imply illegal, just ick ;)


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  reply	other threads:[~2004-01-30 19:55 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-30  9:41 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 10:52 ` 2.6.2-rc2-mm2 Helge Hafting
2004-01-30 11:14 ` 2.6.2-rc2-mm2 Zephaniah E. Hull
2004-01-30 16:25   ` 2.6.2-rc2-mm2 Gene Heskett
2004-01-30 17:25 ` 2.6.2-rc2-mm2 Gene Heskett
2004-01-30 18:58 ` 2.6.2-rc2-mm2 Torrey Hoffman
2004-01-30 19:07   ` 2.6.2-rc2-mm2 Thomas Schlichter
2004-01-30 19:23     ` 2.6.2-rc2-mm2 Arjan van de Ven
2004-01-30 19:47       ` 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 19:55         ` Arjan van de Ven [this message]
2004-01-30 20:17         ` 2.6.2-rc2-mm2 Tim Hockin
2004-01-30 20:33           ` 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 21:12             ` 2.6.2-rc2-mm2 Tim Hockin
2004-01-30 22:00               ` 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 22:31                 ` 2.6.2-rc2-mm2 Tim Hockin
2004-01-30 23:08                   ` 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 23:21                     ` 2.6.2-rc2-mm2 Tim Hockin
2004-01-30 23:31                       ` 2.6.2-rc2-mm2 Andrew Morton
2004-01-30 23:43                         ` 2.6.2-rc2-mm2 Tim Hockin
2004-01-30 21:16             ` 2.6.2-rc2-mm2 John Stoffel
2004-01-30 21:52               ` 2.6.2-rc2-mm2 Tim Hockin

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