From ad8c2ee801ad7a52d919b478d9b2c7b39a72d295 Mon Sep 17 00:00:00 2001 From: Rik van Riel Date: Mon, 9 Aug 2010 17:19:48 -0700 Subject: rmap: add exclusive page to private anon_vma on swapin On swapin it is fairly common for a page to be owned exclusively by one process. In that case we want to add the page to the anon_vma of that process's VMA, instead of to the root anon_vma. This will reduce the amount of rmap searching that the swapout code needs to do. Signed-off-by: Rik van Riel Cc: Andrea Arcangeli Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rmap.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/rmap.h') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index dc9b3c0..d6661de 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -162,6 +162,8 @@ static inline void anon_vma_merge(struct vm_area_struct *vma, */ void page_move_anon_rmap(struct page *, struct vm_area_struct *, unsigned long); void page_add_anon_rmap(struct page *, struct vm_area_struct *, unsigned long); +void do_page_add_anon_rmap(struct page *, struct vm_area_struct *, + unsigned long, int); void page_add_new_anon_rmap(struct page *, struct vm_area_struct *, unsigned long); void page_add_file_rmap(struct page *); void page_remove_rmap(struct page *); -- cgit v1.1