Re: [PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside i_mmap_rwsem

From	Dave Hansen <dave.hansen@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside i_mmap_rwsem
Date	2016-02-16 16:50 +0100
Message-ID	<r2Q31-1iJ-47@gated-at.bofh.it> (permalink)
References	<r10pQ-1zg-3@gated-at.bofh.it> <r10pR-1zg-41@gated-at.bofh.it>
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On 02/11/2016 06:21 AM, Kirill A. Shutemov wrote:
> vma_addjust_trans_huge() splits pmd if it's crossing VMA boundary.
> During split we munlock the huge page which requires rmap walk.
> rmap wants to take the lock on its own.

Ahhh, ... so we $SUBJECT in order to fix it.

Now it all makes sense.  Maybe I'm old fashioned, but I tend to have
forgotten $SUBJECT by the time I start to read the patch body text.
It's really handy for me when the body text stands on its own.

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[PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside i_mmap_rwsem "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-02-11 15:30 +0100
  Re: [PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside  i_mmap_rwsem Dave Hansen <dave.hansen@intel.com> - 2016-02-12 20:00 +0100
    Re: [PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside  i_mmap_rwsem "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2016-02-16 11:20 +0100
  Re: [PATCHv2 19/28] thp: run vma_adjust_trans_huge() outside  i_mmap_rwsem Dave Hansen <dave.hansen@intel.com> - 2016-02-16 16:50 +0100

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