43 __nilfs_get_page_block(struct page *page, unsigned long block, pgoff_t index,  in __nilfs_get_page_block()  argument
50 	if (!page_has_buffers(page))  in __nilfs_get_page_block()
51 		create_empty_buffers(page, 1 << blkbits, b_state);  in __nilfs_get_page_block()
54 	bh = nilfs_page_get_nth_block(page, block - first_block);  in __nilfs_get_page_block()
68 	struct page *page;  in nilfs_grab_buffer()  local
71 	page = grab_cache_page(mapping, index);  in nilfs_grab_buffer()
72 	if (unlikely(!page))  in nilfs_grab_buffer()
75 	bh = __nilfs_get_page_block(page, blkoff, index, blkbits, b_state);  in nilfs_grab_buffer()
77 		unlock_page(page);  in nilfs_grab_buffer()
78 		page_cache_release(page);  in nilfs_grab_buffer()
91 	struct page *page = bh->b_page;  in nilfs_forget_buffer()  local
98 	if (nilfs_page_buffers_clean(page))  in nilfs_forget_buffer()
99 		__nilfs_clear_page_dirty(page);  in nilfs_forget_buffer()
104 	ClearPageUptodate(page);  in nilfs_forget_buffer()
105 	ClearPageMappedToDisk(page);  in nilfs_forget_buffer()
119 	struct page *spage = sbh->b_page, *dpage = dbh->b_page;  in nilfs_copy_buffer()
156 int nilfs_page_buffers_clean(struct page *page)  in nilfs_page_buffers_clean()  argument
160 	bh = head = page_buffers(page);  in nilfs_page_buffers_clean()
169 void nilfs_page_bug(struct page *page)  in nilfs_page_bug()  argument
174 	if (unlikely(!page)) {  in nilfs_page_bug()
179 	m = page->mapping;  in nilfs_page_bug()
184 	       page, atomic_read(&page->_count),  in nilfs_page_bug()
185 	       (unsigned long long)page->index, page->flags, m, ino);  in nilfs_page_bug()
187 	if (page_has_buffers(page)) {  in nilfs_page_bug()
191 		bh = head = page_buffers(page);  in nilfs_page_bug()
212 static void nilfs_copy_page(struct page *dst, struct page *src, int copy_dirty)  in nilfs_copy_page()
271 		struct page *page = pvec.pages[i], *dpage;  in nilfs_copy_dirty_pages()  local
273 		lock_page(page);  in nilfs_copy_dirty_pages()
274 		if (unlikely(!PageDirty(page)))  in nilfs_copy_dirty_pages()
275 			NILFS_PAGE_BUG(page, "inconsistent dirty state");  in nilfs_copy_dirty_pages()
277 		dpage = grab_cache_page(dmap, page->index);  in nilfs_copy_dirty_pages()
281 			unlock_page(page);  in nilfs_copy_dirty_pages()
284 		if (unlikely(!page_has_buffers(page)))  in nilfs_copy_dirty_pages()
285 			NILFS_PAGE_BUG(page,  in nilfs_copy_dirty_pages()
288 		nilfs_copy_page(dpage, page, 1);  in nilfs_copy_dirty_pages()
293 		unlock_page(page);  in nilfs_copy_dirty_pages()
327 		struct page *page = pvec.pages[i], *dpage;  in nilfs_copy_back_pages()  local
328 		pgoff_t offset = page->index;  in nilfs_copy_back_pages()
330 		lock_page(page);  in nilfs_copy_back_pages()
335 			nilfs_copy_page(dpage, page, 0);  in nilfs_copy_back_pages()
339 			struct page *page2;  in nilfs_copy_back_pages()
344 			WARN_ON(page2 != page);  in nilfs_copy_back_pages()
350 			err = radix_tree_insert(&dmap->page_tree, offset, page);  in nilfs_copy_back_pages()
353 				page->mapping = NULL;  in nilfs_copy_back_pages()
354 				page_cache_release(page); /* for cache */  in nilfs_copy_back_pages()
356 				page->mapping = dmap;  in nilfs_copy_back_pages()
358 				if (PageDirty(page))  in nilfs_copy_back_pages()
365 		unlock_page(page);  in nilfs_copy_back_pages()
389 			struct page *page = pvec.pages[i];  in nilfs_clear_dirty_pages()  local
391 			lock_page(page);  in nilfs_clear_dirty_pages()
392 			nilfs_clear_dirty_page(page, silent);  in nilfs_clear_dirty_pages()
393 			unlock_page(page);  in nilfs_clear_dirty_pages()
405 void nilfs_clear_dirty_page(struct page *page, bool silent)  in nilfs_clear_dirty_page()  argument
407 	struct inode *inode = page->mapping->host;  in nilfs_clear_dirty_page()
410 	BUG_ON(!PageLocked(page));  in nilfs_clear_dirty_page()
415 				page_offset(page), inode->i_ino);  in nilfs_clear_dirty_page()
418 	ClearPageUptodate(page);  in nilfs_clear_dirty_page()
419 	ClearPageMappedToDisk(page);  in nilfs_clear_dirty_page()
421 	if (page_has_buffers(page)) {  in nilfs_clear_dirty_page()
424 		bh = head = page_buffers(page);  in nilfs_clear_dirty_page()
442 	__nilfs_clear_page_dirty(page);  in nilfs_clear_dirty_page()
445 unsigned nilfs_page_count_clean_buffers(struct page *page,  in nilfs_page_count_clean_buffers()  argument
452 	for (bh = head = page_buffers(page), block_start = 0;  in nilfs_page_count_clean_buffers()
484 int __nilfs_clear_page_dirty(struct page *page)  in __nilfs_clear_page_dirty()  argument
486 	struct address_space *mapping = page->mapping;  in __nilfs_clear_page_dirty()
490 		if (test_bit(PG_dirty, &page->flags)) {  in __nilfs_clear_page_dirty()
492 					     page_index(page),  in __nilfs_clear_page_dirty()
495 			return clear_page_dirty_for_io(page);  in __nilfs_clear_page_dirty()
500 	return TestClearPageDirty(page);  in __nilfs_clear_page_dirty()
525 	struct page *page;  in nilfs_find_uncommitted_extent()  local
547 		page = pvec.pages[i];  in nilfs_find_uncommitted_extent()
549 		lock_page(page);  in nilfs_find_uncommitted_extent()
550 		if (page_has_buffers(page)) {  in nilfs_find_uncommitted_extent()
553 			bh = head = page_buffers(page);  in nilfs_find_uncommitted_extent()
571 		unlock_page(page);  in nilfs_find_uncommitted_extent()
575 	index = page->index + 1;  in nilfs_find_uncommitted_extent()
581 	unlock_page(page);  in nilfs_find_uncommitted_extent()