115 static bool v9fs_release_folio(struct folio *folio, gfp_t gfp)  in v9fs_release_folio()  argument
117 	if (folio_test_private(folio))  in v9fs_release_folio()
120 	if (folio_test_fscache(folio)) {  in v9fs_release_folio()
123 		folio_wait_fscache(folio);  in v9fs_release_folio()
125 	fscache_note_page_release(v9fs_inode_cookie(V9FS_I(folio_inode(folio))));  in v9fs_release_folio()
130 static void v9fs_invalidate_folio(struct folio *folio, size_t offset,  in v9fs_invalidate_folio()  argument
133 	folio_wait_fscache(folio);  in v9fs_invalidate_folio()
152 static int v9fs_vfs_write_folio_locked(struct folio *folio)  in v9fs_vfs_write_folio_locked()  argument
154 	struct inode *inode = folio_inode(folio);  in v9fs_vfs_write_folio_locked()
155 	loff_t start = folio_pos(folio);  in v9fs_vfs_write_folio_locked()
158 	size_t len = folio_size(folio);  in v9fs_vfs_write_folio_locked()
169 	iov_iter_xarray(&from, ITER_SOURCE, &folio_mapping(folio)->i_pages, start, len);  in v9fs_vfs_write_folio_locked()
178 	folio_wait_fscache(folio);  in v9fs_vfs_write_folio_locked()
179 	folio_start_writeback(folio);  in v9fs_vfs_write_folio_locked()
187 		folio_start_fscache(folio);  in v9fs_vfs_write_folio_locked()
189 					folio_mapping(folio), start, len, i_size,  in v9fs_vfs_write_folio_locked()
195 	folio_end_writeback(folio);  in v9fs_vfs_write_folio_locked()
203 	struct folio *folio = page_folio(page);  in v9fs_vfs_writepage()  local
206 	p9_debug(P9_DEBUG_VFS, "folio %p\n", folio);  in v9fs_vfs_writepage()
208 	retval = v9fs_vfs_write_folio_locked(folio);  in v9fs_vfs_writepage()
211 			folio_redirty_for_writepage(wbc, folio);  in v9fs_vfs_writepage()
214 			mapping_set_error(folio_mapping(folio), retval);  in v9fs_vfs_writepage()
219 	folio_unlock(folio);  in v9fs_vfs_writepage()
223 static int v9fs_launder_folio(struct folio *folio)  in v9fs_launder_folio()  argument
227 	if (folio_clear_dirty_for_io(folio)) {  in v9fs_launder_folio()
228 		retval = v9fs_vfs_write_folio_locked(folio);  in v9fs_launder_folio()
232 	folio_wait_fscache(folio);  in v9fs_launder_folio()
280 	struct folio *folio;  in v9fs_write_begin()  local
289 	retval = netfs_write_begin(&v9inode->netfs, filp, mapping, pos, len, &folio, fsdata);  in v9fs_write_begin()
293 	*subpagep = &folio->page;  in v9fs_write_begin()
302 	struct folio *folio = page_folio(subpage);  in v9fs_write_end()  local
307 	if (!folio_test_uptodate(folio)) {  in v9fs_write_end()
313 		folio_mark_uptodate(folio);  in v9fs_write_end()
328 	folio_mark_dirty(folio);  in v9fs_write_end()
330 	folio_unlock(folio);  in v9fs_write_end()
331 	folio_put(folio);  in v9fs_write_end()
341 static bool v9fs_dirty_folio(struct address_space *mapping, struct folio *folio)  in v9fs_dirty_folio()  argument
345 	return fscache_dirty_folio(mapping, folio, v9fs_inode_cookie(v9inode));  in v9fs_dirty_folio()