From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Look like all pieces are in place, we can map file-backed huge-pages
now.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
include/linux/huge_mm.h | 4 +++-
mm/memory.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index c6e3aef..c175c78 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -80,7 +80,9 @@ extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
(1<<TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG) && \
((__vma)->vm_flags & VM_HUGEPAGE))) && \
!((__vma)->vm_flags & VM_NOHUGEPAGE) && \
- !is_vma_temporary_stack(__vma))
+ !is_vma_temporary_stack(__vma) && \
+ (!(__vma)->vm_ops || \
+ mapping_can_have_hugepages((__vma)->vm_file->f_mapping)))
#define transparent_hugepage_defrag(__vma) \
((transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_DEFRAG_FLAG)) || \
diff --git a/mm/memory.c b/mm/memory.c
index 52bd6cf..f3b5a11 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3738,6 +3738,7 @@ retry:
if (!vma->vm_ops)
return do_huge_pmd_anonymous_page(mm, vma, address,
pmd, flags);
+ return do_huge_linear_fault(mm, vma, address, pmd, flags);
} else {
pmd_t orig_pmd = *pmd;
int ret;
--
1.7.10.4
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