17 static int afs_writepages_region(struct address_space *mapping,
30 bool afs_dirty_folio(struct address_space *mapping, struct folio *folio)  in afs_dirty_folio()  argument
32 	return fscache_dirty_folio(mapping, folio,  in afs_dirty_folio()
33 				afs_vnode_cache(AFS_FS_I(mapping->host)));  in afs_dirty_folio()
50 static int afs_flush_conflicting_write(struct address_space *mapping,  in afs_flush_conflicting_write()  argument
61 	return afs_writepages_region(mapping, &wbc, folio_pos(folio), LLONG_MAX,  in afs_flush_conflicting_write()
68 int afs_write_begin(struct file *file, struct address_space *mapping,  in afs_write_begin()  argument
87 	ret = netfs_write_begin(&vnode->netfs, file, mapping, pos, len, &folio, fsdata);  in afs_write_begin()
130 	ret = afs_flush_conflicting_write(mapping, folio);  in afs_write_begin()
153 int afs_write_end(struct file *file, struct address_space *mapping,  in afs_write_end()  argument
220 static void afs_kill_pages(struct address_space *mapping,  in afs_kill_pages()  argument
223 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_kill_pages()
234 		folio = filemap_get_folio(mapping, index);  in afs_kill_pages()
245 		generic_error_remove_page(mapping, &folio->page);  in afs_kill_pages()
258 			      struct address_space *mapping,  in afs_redirty_pages()  argument
261 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_redirty_pages()
272 		folio = filemap_get_folio(mapping, index);  in afs_redirty_pages()
292 	struct address_space *mapping = vnode->netfs.inode.i_mapping;  in afs_pages_written_back()  local
296 	XA_STATE(xas, &mapping->i_pages, start / PAGE_SIZE);  in afs_pages_written_back()
461 static void afs_extend_writeback(struct address_space *mapping,  in afs_extend_writeback()  argument
480 	XA_STATE(xas, &mapping->i_pages, index);  in afs_extend_writeback()
581 static ssize_t afs_write_back_from_locked_folio(struct address_space *mapping,  in afs_write_back_from_locked_folio()  argument
586 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_write_back_from_locked_folio()
626 			afs_extend_writeback(mapping, vnode, &count,  in afs_write_back_from_locked_folio()
646 		iov_iter_xarray(&iter, ITER_SOURCE, &mapping->i_pages, start, len);  in afs_write_back_from_locked_folio()
652 		fscache_clear_page_bits(mapping, start, len, caching);  in afs_write_back_from_locked_folio()
673 		afs_redirty_pages(wbc, mapping, start, len);  in afs_write_back_from_locked_folio()
674 		mapping_set_error(mapping, ret);  in afs_write_back_from_locked_folio()
679 		afs_redirty_pages(wbc, mapping, start, len);  in afs_write_back_from_locked_folio()
680 		mapping_set_error(mapping, -ENOSPC);  in afs_write_back_from_locked_folio()
691 		afs_kill_pages(mapping, start, len);  in afs_write_back_from_locked_folio()
692 		mapping_set_error(mapping, ret);  in afs_write_back_from_locked_folio()
703 static int afs_writepages_region(struct address_space *mapping,  in afs_writepages_region()  argument
720 		n = filemap_get_folios_tag(mapping, &index, end / PAGE_SIZE,  in afs_writepages_region()
748 			if (folio->mapping != mapping ||  in afs_writepages_region()
781 			ret = afs_write_back_from_locked_folio(mapping, wbc,  in afs_writepages_region()
804 int afs_writepages(struct address_space *mapping,  in afs_writepages()  argument
807 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_writepages()
823 		start = mapping->writeback_index * PAGE_SIZE;  in afs_writepages()
824 		ret = afs_writepages_region(mapping, wbc, start, LLONG_MAX,  in afs_writepages()
827 			mapping->writeback_index = next / PAGE_SIZE;  in afs_writepages()
829 				ret = afs_writepages_region(mapping, wbc, 0,  in afs_writepages()
832 					mapping->writeback_index =  in afs_writepages()
837 		ret = afs_writepages_region(mapping, wbc, 0, LLONG_MAX,  in afs_writepages()
840 			mapping->writeback_index = next / PAGE_SIZE;  in afs_writepages()
842 		ret = afs_writepages_region(mapping, wbc,  in afs_writepages()