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
99 	if (nilfs_page_buffers_clean(page))  in nilfs_forget_buffer()
100 		__nilfs_clear_page_dirty(page);  in nilfs_forget_buffer()
103 	ClearPageUptodate(page);  in nilfs_forget_buffer()
104 	ClearPageMappedToDisk(page);  in nilfs_forget_buffer()
118 	struct page *spage = sbh->b_page, *dpage = dbh->b_page;  in nilfs_copy_buffer()
155 int nilfs_page_buffers_clean(struct page *page)  in nilfs_page_buffers_clean()  argument
159 	bh = head = page_buffers(page);  in nilfs_page_buffers_clean()
168 void nilfs_page_bug(struct page *page)  in nilfs_page_bug()  argument
173 	if (unlikely(!page)) {  in nilfs_page_bug()
178 	m = page->mapping;  in nilfs_page_bug()
183 	       page, atomic_read(&page->_count),  in nilfs_page_bug()
184 	       (unsigned long long)page->index, page->flags, m, ino);  in nilfs_page_bug()
186 	if (page_has_buffers(page)) {  in nilfs_page_bug()
190 		bh = head = page_buffers(page);  in nilfs_page_bug()
211 static void nilfs_copy_page(struct page *dst, struct page *src, int copy_dirty)  in nilfs_copy_page()
270 		struct page *page = pvec.pages[i], *dpage;  in nilfs_copy_dirty_pages()  local
272 		lock_page(page);  in nilfs_copy_dirty_pages()
273 		if (unlikely(!PageDirty(page)))  in nilfs_copy_dirty_pages()
274 			NILFS_PAGE_BUG(page, "inconsistent dirty state");  in nilfs_copy_dirty_pages()
276 		dpage = grab_cache_page(dmap, page->index);  in nilfs_copy_dirty_pages()
280 			unlock_page(page);  in nilfs_copy_dirty_pages()
283 		if (unlikely(!page_has_buffers(page)))  in nilfs_copy_dirty_pages()
284 			NILFS_PAGE_BUG(page,  in nilfs_copy_dirty_pages()
287 		nilfs_copy_page(dpage, page, 1);  in nilfs_copy_dirty_pages()
292 		unlock_page(page);  in nilfs_copy_dirty_pages()
326 		struct page *page = pvec.pages[i], *dpage;  in nilfs_copy_back_pages()  local
327 		pgoff_t offset = page->index;  in nilfs_copy_back_pages()
329 		lock_page(page);  in nilfs_copy_back_pages()
334 			nilfs_copy_page(dpage, page, 0);  in nilfs_copy_back_pages()
338 			struct page *page2;  in nilfs_copy_back_pages()
343 			WARN_ON(page2 != page);  in nilfs_copy_back_pages()
349 			err = radix_tree_insert(&dmap->page_tree, offset, page);  in nilfs_copy_back_pages()
352 				page->mapping = NULL;  in nilfs_copy_back_pages()
353 				page_cache_release(page); /* for cache */  in nilfs_copy_back_pages()
355 				page->mapping = dmap;  in nilfs_copy_back_pages()
357 				if (PageDirty(page))  in nilfs_copy_back_pages()
364 		unlock_page(page);  in nilfs_copy_back_pages()
388 			struct page *page = pvec.pages[i];  in nilfs_clear_dirty_pages()  local
390 			lock_page(page);  in nilfs_clear_dirty_pages()
391 			nilfs_clear_dirty_page(page, silent);  in nilfs_clear_dirty_pages()
392 			unlock_page(page);  in nilfs_clear_dirty_pages()
404 void nilfs_clear_dirty_page(struct page *page, bool silent)  in nilfs_clear_dirty_page()  argument
406 	struct inode *inode = page->mapping->host;  in nilfs_clear_dirty_page()
409 	BUG_ON(!PageLocked(page));  in nilfs_clear_dirty_page()
414 				page_offset(page), inode->i_ino);  in nilfs_clear_dirty_page()
417 	ClearPageUptodate(page);  in nilfs_clear_dirty_page()
418 	ClearPageMappedToDisk(page);  in nilfs_clear_dirty_page()
420 	if (page_has_buffers(page)) {  in nilfs_clear_dirty_page()
427 		bh = head = page_buffers(page);  in nilfs_clear_dirty_page()
440 	__nilfs_clear_page_dirty(page);  in nilfs_clear_dirty_page()
443 unsigned nilfs_page_count_clean_buffers(struct page *page,  in nilfs_page_count_clean_buffers()  argument
450 	for (bh = head = page_buffers(page), block_start = 0;  in nilfs_page_count_clean_buffers()
480 int __nilfs_clear_page_dirty(struct page *page)  in __nilfs_clear_page_dirty()  argument
482 	struct address_space *mapping = page->mapping;  in __nilfs_clear_page_dirty()
486 		if (test_bit(PG_dirty, &page->flags)) {  in __nilfs_clear_page_dirty()
488 					     page_index(page),  in __nilfs_clear_page_dirty()
491 			return clear_page_dirty_for_io(page);  in __nilfs_clear_page_dirty()
496 	return TestClearPageDirty(page);  in __nilfs_clear_page_dirty()
521 	struct page *page;  in nilfs_find_uncommitted_extent()  local
543 		page = pvec.pages[i];  in nilfs_find_uncommitted_extent()
545 		lock_page(page);  in nilfs_find_uncommitted_extent()
546 		if (page_has_buffers(page)) {  in nilfs_find_uncommitted_extent()
549 			bh = head = page_buffers(page);  in nilfs_find_uncommitted_extent()
567 		unlock_page(page);  in nilfs_find_uncommitted_extent()
571 	index = page->index + 1;  in nilfs_find_uncommitted_extent()
577 	unlock_page(page);  in nilfs_find_uncommitted_extent()