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Subject[PATCH v3 2.6.39-rc1-tip 1/26] 1: mm: replace_page() loses static attribute

User bkpt will use background page replacement approach to insert/delete
breakpoints. Background page replacement approach is based on
replace_page. Hence replace_page() loses its static attribute.
This is a precursor to moving replace_page() to mm/memory.c

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
---
include/linux/mm.h | 2 ++
mm/ksm.c | 2 +-
2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7606d7d..089bda4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1008,6 +1008,8 @@ void account_page_writeback(struct page *page);
int set_page_dirty(struct page *page);
int set_page_dirty_lock(struct page *page);
int clear_page_dirty_for_io(struct page *page);
+int replace_page(struct vm_area_struct *vma, struct page *page,
+ struct page *kpage, pte_t orig_pte);

/* Is the vma a continuation of the stack vma above it? */
static inline int vma_stack_continue(struct vm_area_struct *vma, unsigned long addr)
diff --git a/mm/ksm.c b/mm/ksm.c
index 1bbe785..f444158 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -760,7 +760,7 @@ out:
*
* Returns 0 on success, -EFAULT on failure.
*/
-static int replace_page(struct vm_area_struct *vma, struct page *page,
+int replace_page(struct vm_area_struct *vma, struct page *page,
struct page *kpage, pte_t orig_pte)
{
struct mm_struct *mm = vma->vm_mm;

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