2061 			pte_t orig_pte, struct page *old_page)  in wp_page_copy()  argument
2082 		cow_user_page(new_page, old_page, address, vma);  in wp_page_copy()
2096 		if (old_page) {  in wp_page_copy()
2097 			if (!PageAnon(old_page)) {  in wp_page_copy()
2124 		if (old_page) {  in wp_page_copy()
2147 			page_remove_rmap(old_page);  in wp_page_copy()
2151 		new_page = old_page;  in wp_page_copy()
2162 	if (old_page) {  in wp_page_copy()
2168 			lock_page(old_page);	/* LRU manipulation */  in wp_page_copy()
2169 			munlock_vma_page(old_page);  in wp_page_copy()
2170 			unlock_page(old_page);  in wp_page_copy()
2172 		page_cache_release(old_page);  in wp_page_copy()
2178 	if (old_page)  in wp_page_copy()
2179 		page_cache_release(old_page);  in wp_page_copy()
2222 			  struct page *old_page)  in wp_page_shared()  argument
2227 	page_cache_get(old_page);  in wp_page_shared()
2238 		tmp = do_page_mkwrite(vma, old_page, address);  in wp_page_shared()
2241 			page_cache_release(old_page);  in wp_page_shared()
2253 			unlock_page(old_page);  in wp_page_shared()
2255 			page_cache_release(old_page);  in wp_page_shared()
2262 			     orig_pte, old_page, page_mkwrite, 1);  in wp_page_shared()
2288 	struct page *old_page;  in do_wp_page()  local
2290 	old_page = vm_normal_page(vma, address, orig_pte);  in do_wp_page()
2291 	if (!old_page) {  in do_wp_page()
2306 				    orig_pte, old_page);  in do_wp_page()
2313 	if (PageAnon(old_page) && !PageKsm(old_page)) {  in do_wp_page()
2314 		if (!trylock_page(old_page)) {  in do_wp_page()
2315 			page_cache_get(old_page);  in do_wp_page()
2317 			lock_page(old_page);  in do_wp_page()
2321 				unlock_page(old_page);  in do_wp_page()
2323 				page_cache_release(old_page);  in do_wp_page()
2326 			page_cache_release(old_page);  in do_wp_page()
2328 		if (reuse_swap_page(old_page)) {  in do_wp_page()
2334 			page_move_anon_rmap(old_page, vma, address);  in do_wp_page()
2335 			unlock_page(old_page);  in do_wp_page()
2337 					     orig_pte, old_page, 0, 0);  in do_wp_page()
2339 		unlock_page(old_page);  in do_wp_page()
2343 				      ptl, orig_pte, old_page);  in do_wp_page()
2349 	page_cache_get(old_page);  in do_wp_page()
2353 			    orig_pte, old_page);  in do_wp_page()