40 void gfs2_trans_add_databufs(struct gfs2_inode *ip, struct folio *folio,  in gfs2_trans_add_databufs()  argument
43 	struct buffer_head *head = folio_buffers(folio);  in gfs2_trans_add_databufs()
92 static int gfs2_write_jdata_folio(struct folio *folio,  in gfs2_write_jdata_folio()  argument
95 	struct inode * const inode = folio->mapping->host;  in gfs2_write_jdata_folio()
105 	if (folio_pos(folio) < i_size &&  in gfs2_write_jdata_folio()
106 	    i_size < folio_pos(folio) + folio_size(folio))  in gfs2_write_jdata_folio()
107 		folio_zero_segment(folio, offset_in_folio(folio, i_size),  in gfs2_write_jdata_folio()
108 				folio_size(folio));  in gfs2_write_jdata_folio()
110 	return __block_write_full_folio(inode, folio, gfs2_get_block_noalloc,  in gfs2_write_jdata_folio()
124 static int __gfs2_jdata_write_folio(struct folio *folio,  in __gfs2_jdata_write_folio()  argument
127 	struct inode *inode = folio->mapping->host;  in __gfs2_jdata_write_folio()
130 	if (folio_test_checked(folio)) {  in __gfs2_jdata_write_folio()
131 		folio_clear_checked(folio);  in __gfs2_jdata_write_folio()
132 		if (!folio_buffers(folio)) {  in __gfs2_jdata_write_folio()
133 			folio_create_empty_buffers(folio,  in __gfs2_jdata_write_folio()
137 		gfs2_trans_add_databufs(ip, folio, 0, folio_size(folio));  in __gfs2_jdata_write_folio()
139 	return gfs2_write_jdata_folio(folio, wbc);  in __gfs2_jdata_write_folio()
153 	struct folio *folio = page_folio(page);  in gfs2_jdata_writepage()  local
160 	if (folio_test_checked(folio) || current->journal_info)  in gfs2_jdata_writepage()
162 	return __gfs2_jdata_write_folio(folio, wbc);  in gfs2_jdata_writepage()
165 	folio_redirty_for_writepage(wbc, folio);  in gfs2_jdata_writepage()
167 	folio_unlock(folio);  in gfs2_jdata_writepage()
229 		struct folio *folio = fbatch->folios[i];  in gfs2_write_jdata_batch()  local
231 		*done_index = folio->index;  in gfs2_write_jdata_batch()
233 		folio_lock(folio);  in gfs2_write_jdata_batch()
235 		if (unlikely(folio->mapping != mapping)) {  in gfs2_write_jdata_batch()
237 			folio_unlock(folio);  in gfs2_write_jdata_batch()
241 		if (!folio_test_dirty(folio)) {  in gfs2_write_jdata_batch()
246 		if (folio_test_writeback(folio)) {  in gfs2_write_jdata_batch()
248 				folio_wait_writeback(folio);  in gfs2_write_jdata_batch()
253 		BUG_ON(folio_test_writeback(folio));  in gfs2_write_jdata_batch()
254 		if (!folio_clear_dirty_for_io(folio))  in gfs2_write_jdata_batch()
259 		ret = __gfs2_jdata_write_folio(folio, wbc);  in gfs2_write_jdata_batch()
262 				folio_unlock(folio);  in gfs2_write_jdata_batch()
275 				*done_index = folio_next_index(folio);  in gfs2_write_jdata_batch()
450 static int gfs2_read_folio(struct file *file, struct folio *folio)  in gfs2_read_folio()  argument
452 	struct inode *inode = folio->mapping->host;  in gfs2_read_folio()
458 	    (i_blocksize(inode) == PAGE_SIZE && !folio_buffers(folio))) {  in gfs2_read_folio()
459 		error = iomap_read_folio(folio, &gfs2_iomap_ops);  in gfs2_read_folio()
461 		error = stuffed_readpage(ip, &folio->page);  in gfs2_read_folio()
462 		folio_unlock(folio);  in gfs2_read_folio()
464 		error = mpage_read_folio(folio, gfs2_block_map);  in gfs2_read_folio()
491 		struct folio *folio;  in gfs2_internal_read()  local
493 		folio = read_cache_folio(mapping, index, gfs2_read_folio, NULL);  in gfs2_internal_read()
494 		if (IS_ERR(folio)) {  in gfs2_internal_read()
495 			if (PTR_ERR(folio) == -EINTR)  in gfs2_internal_read()
497 			return PTR_ERR(folio);  in gfs2_internal_read()
499 		offset = *pos + copied - folio_pos(folio);  in gfs2_internal_read()
500 		chunk = min(size - copied, folio_size(folio) - offset);  in gfs2_internal_read()
501 		memcpy_from_folio(buf + copied, folio, offset, chunk);  in gfs2_internal_read()
502 		index = folio_next_index(folio);  in gfs2_internal_read()
503 		folio_put(folio);  in gfs2_internal_read()
579 		struct folio *folio)  in jdata_dirty_folio()  argument
582 		folio_set_checked(folio);  in jdata_dirty_folio()
583 	return block_dirty_folio(mapping, folio);  in jdata_dirty_folio()
638 static void gfs2_invalidate_folio(struct folio *folio, size_t offset,  in gfs2_invalidate_folio()  argument
641 	struct gfs2_sbd *sdp = GFS2_SB(folio->mapping->host);  in gfs2_invalidate_folio()
643 	int partial_page = (offset || length < folio_size(folio));  in gfs2_invalidate_folio()
647 	BUG_ON(!folio_test_locked(folio));  in gfs2_invalidate_folio()
649 		folio_clear_checked(folio);  in gfs2_invalidate_folio()
650 	head = folio_buffers(folio);  in gfs2_invalidate_folio()
666 		filemap_release_folio(folio, 0);  in gfs2_invalidate_folio()
680 bool gfs2_release_folio(struct folio *folio, gfp_t gfp_mask)  in gfs2_release_folio()  argument
682 	struct address_space *mapping = folio->mapping;  in gfs2_release_folio()
687 	head = folio_buffers(folio);  in gfs2_release_folio()
736 	return try_to_free_buffers(folio);  in gfs2_release_folio()