Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set")

From	"Kirill A. Shutemov" <kirill@shutemov.name>
Newsgroups	linux.kernel
Subject	Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set")
Date	2015-09-17 17:40 +0200
Message-ID	<q9JrY-7OO-21@gated-at.bofh.it> (permalink)
References	(2 earlier) <q8Fqq-432-33@gated-at.bofh.it> <q8GFP-5Kz-5@gated-at.bofh.it> <q8Xnj-4x5-1@gated-at.bofh.it> <q8YMq-6qZ-3@gated-at.bofh.it> <q9sr8-82b-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Wed, Sep 16, 2015 at 02:28:18PM -0700, Andrew Morton wrote:
> On Tue, 15 Sep 2015 16:42:16 +0300 "Kirill A. Shutemov" <kirill@shutemov.name> wrote:
> 
> > I would rather like to see consolidated fault path between file and anon
> > with ->vm_ops set for both. So vma_is_anonymous() will be trivial
> > vma->vm_ops == anon_vm_ops.
> 
> People are noticing: https://bugzilla.kernel.org/show_bug.cgi?id=104691
> 
> How about I send Linus a revert of 6dc296e7df4c while we work out what
> to do?

I think it's the best step for now. Although, I'm not sure when I will get
time on reworking fault path :-/

-- 
 Kirill A. Shutemov
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LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs  have ->vm_ops set") Will Deacon <will.deacon@arm.com> - 2015-09-14 13:00 +0200
  RE: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs  have ->vm_ops set") "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2015-09-14 14:00 +0200
    Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") Will Deacon <will.deacon@arm.com> - 2015-09-14 15:30 +0200
    Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") Oleg Nesterov <oleg@redhat.com> - 2015-09-14 19:10 +0200
      Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") Oleg Nesterov <oleg@redhat.com> - 2015-09-14 19:50 +0200
      Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-09-14 20:30 +0200
        Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") Oleg Nesterov <oleg@redhat.com> - 2015-09-15 14:20 +0200
          Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-09-15 15:50 +0200
            Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") Oleg Nesterov <oleg@redhat.com> - 2015-09-15 17:20 +0200
            Re: LTP regressions due to 6dc296e7df4c  ("mm: make sure all file VMAs have ->vm_ops set") Andrew Morton <akpm@linux-foundation.org> - 2015-09-16 23:30 +0200
              Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file  VMAs have ->vm_ops set") "Kirill A. Shutemov" <kirill@shutemov.name> - 2015-09-17 17:40 +0200

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