[CRIU] [PATCH 1/3] mm: expose the routines special_mapping_fault() and special_mapping_close()

[Alexander Kartashov]

Signed-off-by: Alexander Kartashov <alekskartashov at parallels.com>
---
 include/linux/mm.h |    4 ++++
 mm/mmap.c          |    6 +++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index f28f46e..6999a78 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1744,6 +1744,10 @@ extern int install_special_mapping(struct mm_struct *mm,
 				   unsigned long addr, unsigned long len,
 				   unsigned long flags, struct page **pages);
 
+extern int special_mapping_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+extern void special_mapping_close(struct vm_area_struct *vma);
+
+
 extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
 
 extern unsigned long mmap_region(struct file *file, unsigned long addr,
diff --git a/mm/mmap.c b/mm/mmap.c
index 20ff0c3..99a9ad8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2870,8 +2870,8 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
 }
 
 
-static int special_mapping_fault(struct vm_area_struct *vma,
-				struct vm_fault *vmf)
+int special_mapping_fault(struct vm_area_struct *vma,
+			  struct vm_fault *vmf)
 {
 	pgoff_t pgoff;
 	struct page **pages;
@@ -2900,7 +2900,7 @@ static int special_mapping_fault(struct vm_area_struct *vma,
 /*
  * Having a close hook prevents vma merging regardless of flags.
  */
-static void special_mapping_close(struct vm_area_struct *vma)
+void special_mapping_close(struct vm_area_struct *vma)
 {
 }
 
-- 
1.7.9.5