1883 			struct page *page = pvec.pages[i];  in write_cache_pages()  local
1892 			if (page->index > end) {  in write_cache_pages()
1901 			done_index = page->index;  in write_cache_pages()
1903 			lock_page(page);  in write_cache_pages()
1913 			if (unlikely(page->mapping != mapping)) {  in write_cache_pages()
1915 				unlock_page(page);  in write_cache_pages()
1919 			if (!PageDirty(page)) {  in write_cache_pages()
1924 			if (PageWriteback(page)) {  in write_cache_pages()
1926 					wait_on_page_writeback(page);  in write_cache_pages()
1931 			BUG_ON(PageWriteback(page));  in write_cache_pages()
1932 			if (!clear_page_dirty_for_io(page))  in write_cache_pages()
1936 			ret = (*writepage)(page, wbc, data);  in write_cache_pages()
1939 					unlock_page(page);  in write_cache_pages()
1951 					done_index = page->index + 1;  in write_cache_pages()
1994 static int __writepage(struct page *page, struct writeback_control *wbc,  in __writepage()  argument
1998 	int ret = mapping->a_ops->writepage(page, wbc);  in __writepage()
2051 int write_one_page(struct page *page, int wait)  in write_one_page()  argument
2053 	struct address_space *mapping = page->mapping;  in write_one_page()
2060 	BUG_ON(!PageLocked(page));  in write_one_page()
2063 		wait_on_page_writeback(page);  in write_one_page()
2065 	if (clear_page_dirty_for_io(page)) {  in write_one_page()
2066 		page_cache_get(page);  in write_one_page()
2067 		ret = mapping->a_ops->writepage(page, &wbc);  in write_one_page()
2069 			wait_on_page_writeback(page);  in write_one_page()
2070 			if (PageError(page))  in write_one_page()
2073 		page_cache_release(page);  in write_one_page()
2075 		unlock_page(page);  in write_one_page()
2084 int __set_page_dirty_no_writeback(struct page *page)  in __set_page_dirty_no_writeback()  argument
2086 	if (!PageDirty(page))  in __set_page_dirty_no_writeback()
2087 		return !TestSetPageDirty(page);  in __set_page_dirty_no_writeback()
2095 void account_page_dirtied(struct page *page, struct address_space *mapping)  in account_page_dirtied()  argument
2097 	trace_writeback_dirty_page(page, mapping);  in account_page_dirtied()
2102 		__inc_zone_page_state(page, NR_FILE_DIRTY);  in account_page_dirtied()
2103 		__inc_zone_page_state(page, NR_DIRTIED);  in account_page_dirtied()
2122 void account_page_cleaned(struct page *page, struct address_space *mapping)  in account_page_cleaned()  argument
2125 		dec_zone_page_state(page, NR_FILE_DIRTY);  in account_page_cleaned()
2144 int __set_page_dirty_nobuffers(struct page *page)  in __set_page_dirty_nobuffers()  argument
2146 	if (!TestSetPageDirty(page)) {  in __set_page_dirty_nobuffers()
2147 		struct address_space *mapping = page_mapping(page);  in __set_page_dirty_nobuffers()
2154 		BUG_ON(page_mapping(page) != mapping);  in __set_page_dirty_nobuffers()
2155 		WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page));  in __set_page_dirty_nobuffers()
2156 		account_page_dirtied(page, mapping);  in __set_page_dirty_nobuffers()
2157 		radix_tree_tag_set(&mapping->page_tree, page_index(page),  in __set_page_dirty_nobuffers()
2177 void account_page_redirty(struct page *page)  in account_page_redirty()  argument
2179 	struct address_space *mapping = page->mapping;  in account_page_redirty()
2182 		dec_zone_page_state(page, NR_DIRTIED);  in account_page_redirty()
2193 int redirty_page_for_writepage(struct writeback_control *wbc, struct page *page)  in redirty_page_for_writepage()  argument
2198 	ret = __set_page_dirty_nobuffers(page);  in redirty_page_for_writepage()
2199 	account_page_redirty(page);  in redirty_page_for_writepage()
2215 int set_page_dirty(struct page *page)  in set_page_dirty()  argument
2217 	struct address_space *mapping = page_mapping(page);  in set_page_dirty()
2220 		int (*spd)(struct page *) = mapping->a_ops->set_page_dirty;  in set_page_dirty()
2231 		if (PageReclaim(page))  in set_page_dirty()
2232 			ClearPageReclaim(page);  in set_page_dirty()
2237 		return (*spd)(page);  in set_page_dirty()
2239 	if (!PageDirty(page)) {  in set_page_dirty()
2240 		if (!TestSetPageDirty(page))  in set_page_dirty()
2257 int set_page_dirty_lock(struct page *page)  in set_page_dirty_lock()  argument
2261 	lock_page(page);  in set_page_dirty_lock()
2262 	ret = set_page_dirty(page);  in set_page_dirty_lock()
2263 	unlock_page(page);  in set_page_dirty_lock()
2282 int clear_page_dirty_for_io(struct page *page)  in clear_page_dirty_for_io()  argument
2284 	struct address_space *mapping = page_mapping(page);  in clear_page_dirty_for_io()
2286 	BUG_ON(!PageLocked(page));  in clear_page_dirty_for_io()
2314 		if (page_mkclean(page))  in clear_page_dirty_for_io()
2315 			set_page_dirty(page);  in clear_page_dirty_for_io()
2324 		if (TestClearPageDirty(page)) {  in clear_page_dirty_for_io()
2325 			dec_zone_page_state(page, NR_FILE_DIRTY);  in clear_page_dirty_for_io()
2332 	return TestClearPageDirty(page);  in clear_page_dirty_for_io()
2336 int test_clear_page_writeback(struct page *page)  in test_clear_page_writeback()  argument
2338 	struct address_space *mapping = page_mapping(page);  in test_clear_page_writeback()
2342 	memcg = mem_cgroup_begin_page_stat(page);  in test_clear_page_writeback()
2348 		ret = TestClearPageWriteback(page);  in test_clear_page_writeback()
2351 						page_index(page),  in test_clear_page_writeback()
2360 		ret = TestClearPageWriteback(page);  in test_clear_page_writeback()
2364 		dec_zone_page_state(page, NR_WRITEBACK);  in test_clear_page_writeback()
2365 		inc_zone_page_state(page, NR_WRITTEN);  in test_clear_page_writeback()
2371 int __test_set_page_writeback(struct page *page, bool keep_write)  in __test_set_page_writeback()  argument
2373 	struct address_space *mapping = page_mapping(page);  in __test_set_page_writeback()
2377 	memcg = mem_cgroup_begin_page_stat(page);  in __test_set_page_writeback()
2383 		ret = TestSetPageWriteback(page);  in __test_set_page_writeback()
2386 						page_index(page),  in __test_set_page_writeback()
2391 		if (!PageDirty(page))  in __test_set_page_writeback()
2393 						page_index(page),  in __test_set_page_writeback()
2397 						page_index(page),  in __test_set_page_writeback()
2401 		ret = TestSetPageWriteback(page);  in __test_set_page_writeback()
2405 		inc_zone_page_state(page, NR_WRITEBACK);  in __test_set_page_writeback()
2431 void wait_for_stable_page(struct page *page)  in wait_for_stable_page()  argument
2433 	if (bdi_cap_stable_pages_required(inode_to_bdi(page->mapping->host)))  in wait_for_stable_page()
2434 		wait_on_page_writeback(page);  in wait_for_stable_page()