diff options
| -rw-r--r-- | include/linux/rmap.h | 6 | ||||
| -rw-r--r-- | mm/memory.c | 2 | ||||
| -rw-r--r-- | mm/rmap.c | 21 |
3 files changed, 2 insertions, 27 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index bf116d0dbf23..477841d29fce 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -71,14 +71,10 @@ void page_add_new_anon_rmap(struct page *, struct vm_area_struct *, unsigned lon void page_add_file_rmap(struct page *); void page_remove_rmap(struct page *); -#ifdef CONFIG_DEBUG_VM -void page_dup_rmap(struct page *page, struct vm_area_struct *vma, unsigned long address); -#else -static inline void page_dup_rmap(struct page *page, struct vm_area_struct *vma, unsigned long address) +static inline void page_dup_rmap(struct page *page) { atomic_inc(&page->_mapcount); } -#endif /* * Called from mm/vmscan.c to handle paging out diff --git a/mm/memory.c b/mm/memory.c index 368561f32009..7a61a11f1867 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -597,7 +597,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm, page = vm_normal_page(vma, addr, pte); if (page) { get_page(page); - page_dup_rmap(page, vma, addr); + page_dup_rmap(page); rss[!!PageAnon(page)]++; } diff --git a/mm/rmap.c b/mm/rmap.c index 1406e67f9613..720fc03a7bc4 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -710,27 +710,6 @@ void page_add_file_rmap(struct page *page) } } -#ifdef CONFIG_DEBUG_VM -/** - * page_dup_rmap - duplicate pte mapping to a page - * @page: the page to add the mapping to - * @vma: the vm area being duplicated - * @address: the user virtual address mapped - * - * For copy_page_range only: minimal extract from page_add_file_rmap / - * page_add_anon_rmap, avoiding unnecessary tests (already checked) so it's - * quicker. - * - * The caller needs to hold the pte lock. - */ -void page_dup_rmap(struct page *page, struct vm_area_struct *vma, unsigned long address) -{ - if (PageAnon(page)) - __page_check_anon_rmap(page, vma, address); - atomic_inc(&page->_mapcount); -} -#endif - /** * page_remove_rmap - take down pte mapping from a page * @page: page to remove mapping from |