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Subject[PATCH 0/2] mm, drm/ttm: Fix pte insertion with customized protection
From: Thomas Hellstrom <>

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.

Thomas Hellstrom (2):
mm: Add and export vmf_insert_mixed_prot()
drm/ttm: Fix vm page protection handling

drivers/gpu/drm/ttm/ttm_bo_vm.c | 14 +++++++-------
include/linux/mm.h | 2 ++
mm/memory.c | 15 +++++++++++----
3 files changed, 20 insertions(+), 11 deletions(-)

Cc: Andrew Morton <>
Cc: Michal Hocko <>
Cc: "Matthew Wilcox (Oracle)" <>
Cc: "Kirill A. Shutemov" <>
Cc: Ralph Campbell <>
Cc: "Jérôme Glisse" <>
Cc: "Christian König" <>


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