Re: 2.6.2-rc2-mm2

From: Arjan van de Ven (arjanv_at_redhat.com)
Date: 01/30/04

  • Next message: Adrian Bunk: "[2.4 patch] fix a agpgart_be.c compile warning" 
    Date:	Fri, 30 Jan 2004 20:55:15 +0100
To: Andrew Morton <akpm@osdl.org>

    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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  • Next message: Adrian Bunk: "[2.4 patch] fix a agpgart_be.c compile warning"

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