Does __KERNEL_DS serve a purpose?

From	Andy Lutomirski <luto@kernel.org>
Newsgroups	linux.kernel
Subject	Does __KERNEL_DS serve a purpose?
Date	2016-04-08 02:30 +0200
Message-ID	<rlste-3DX-47@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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I can't see any reason that we need the __KERNEL_DS segment at all --
I think that everything that uses __KERNEL_DS could use __USER_DS
instead.  Am I missing anything?  This has been bugging me for a
while.

I mulled over this a bit when trying to understand the sysret_ss_attrs
bug and then forgot about it.

--Andy

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Thread

Does __KERNEL_DS serve a purpose? Andy Lutomirski <luto@kernel.org> - 2016-04-08 02:30 +0200
  Re: [Xen-devel] Does __KERNEL_DS serve a purpose? Andrew Cooper <andrew.cooper3@citrix.com> - 2016-04-08 10:20 +0200
    Re: [Xen-devel] Does __KERNEL_DS serve a purpose? Andy Lutomirski <luto@amacapital.net> - 2016-04-08 18:10 +0200
      Re: [Xen-devel] Does __KERNEL_DS serve a purpose? Paolo Bonzini <pbonzini@redhat.com> - 2016-04-08 19:20 +0200
        Re: [Xen-devel] Does __KERNEL_DS serve a purpose? Andy Lutomirski <luto@amacapital.net> - 2016-04-09 00:10 +0200
          Re: [Xen-devel] Does __KERNEL_DS serve a purpose? Andrew Cooper <andrew.cooper3@citrix.com> - 2016-04-09 00:40 +0200

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