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Cc:     pv-drivers@vmware.com, linux-graphics-maintainer@vmware.com,
        Thomas Hellstrom <thellstrom@vmware.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.com>,
        "Matthew Wilcox (Oracle)" <willy@infradead.org>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Ralph Campbell <rcampbell@nvidia.com>,
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        =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Subject: [PATCH v4 0/2] mm, drm/ttm: Fix pte insertion with customized protection
Date:   Thu, 12 Dec 2019 09:47:39 +0100
Message-Id: <20191212084741.9251-1-thomas_os@shipmail.org>
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From: Thomas Hellstrom <thellstrom@vmware.com>

The drm/ttm module is using a modified on-stack copy of the
struct vm_area_struct to be able to set a page protection with customized
caching. Fix that by adding a vmf_insert_mixed_prot() function similar
to the existing vmf_insert_pfn_prot() for use with drm/ttm.

I'd like to merge this through a drm tree.

Changes since v1:
*) Formatting fixes in patch 1
*) Updated commit message of patch 2.
Changes since v2:
*) Moved vmf_insert_mixed_prot() export to patch 2 (Michal Hocko)
*) Documented under which conditions it's safe to use a page protection
   different from struct vm_area_struct::vm_page_prot. (Michal Hocko)
Changes since v3:
*) More documentation regarding under which conditions it's safe to use a
   page protection different from struct vm_area_struct::vm_page_prot. This
   time also in core vm. (Michal Hocko)

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>

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2.21.0