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Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from the Xen guest code

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On Thu, Jun 11, 2015 at 7:07 AM, Ingo Molnar <mingo@kernel.org> wrote:
>
> But we want to remove the pgd_list, so convert the code over to walk
> all tasks in the system. This is an equivalent method.

This is not at all equivalent, and it looks stupid.

Don't use "for_each_process_thread(g, p)". You only care about each
mm, and threads all share the same mm, so just do

    for_each_process(p)

instead of iterating over all threads too.

No?

               Linus
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Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from the  Xen guest code Linus Torvalds <torvalds@linux-foundation.org> - 2015-06-11 22:40 +0200
  Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from the  Xen guest code Linus Torvalds <torvalds@linux-foundation.org> - 2015-06-11 22:50 +0200
    Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from  the Xen guest code Oleg Nesterov <oleg@redhat.com> - 2015-06-13 01:40 +0200
    Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from  the Xen guest code Ingo Molnar <mingo@kernel.org> - 2015-06-13 09:30 +0200
      Re: [PATCH 07/12] x86/virt/guest/xen: Remove use of pgd_list from  the Xen guest code Oleg Nesterov <oleg@redhat.com> - 2015-06-13 20:10 +0200

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