From: Andrew Morton <akpm@osdl.org>
To: arjanv@redhat.com
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 11:47:01 -0800 [thread overview]
Message-ID: <20040130114701.18aec4e8.akpm@osdl.org> (raw)
In-Reply-To: <1075490624.4272.7.camel@laptop.fenrus.com>
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.
Tim, I do think it would be neater to add another entry point in sys.c for
nfsd and just do a memcpy.
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next prev parent reply other threads:[~2004-01-30 19:47 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 ` Andrew Morton [this message]
2004-01-30 19:55 ` 2.6.2-rc2-mm2 Arjan van de Ven
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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