474 	struct nilfs_shadow_map *shadow = mdi->mi_shadow;  in nilfs_mdt_clear()  local
479 	if (shadow) {  in nilfs_mdt_clear()
480 		struct inode *s_inode = shadow->inode;  in nilfs_mdt_clear()
482 		shadow->inode = NULL;  in nilfs_mdt_clear()
511  * nilfs_mdt_setup_shadow_map - setup shadow map and bind it to metadata file
513  * @shadow: shadow mapping
516 			       struct nilfs_shadow_map *shadow)  in nilfs_mdt_setup_shadow_map()  argument
521 	INIT_LIST_HEAD(&shadow->frozen_buffers);  in nilfs_mdt_setup_shadow_map()
527 	shadow->inode = s_inode;  in nilfs_mdt_setup_shadow_map()
528 	mi->mi_shadow = shadow;  in nilfs_mdt_setup_shadow_map()
533  * nilfs_mdt_save_to_shadow_map - copy bmap and dirty pages to shadow map
540 	struct nilfs_shadow_map *shadow = mi->mi_shadow;  in nilfs_mdt_save_to_shadow_map()  local
541 	struct inode *s_inode = shadow->inode;  in nilfs_mdt_save_to_shadow_map()
553 	nilfs_bmap_save(ii->i_bmap, &shadow->bmap_store);  in nilfs_mdt_save_to_shadow_map()
560 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;  in nilfs_mdt_freeze_buffer()  local
565 	page = grab_cache_page(shadow->inode->i_mapping, bh->b_folio->index);  in nilfs_mdt_freeze_buffer()
578 			      &shadow->frozen_buffers);  in nilfs_mdt_freeze_buffer()
592 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;  in nilfs_mdt_get_frozen_buffer()  local
597 	page = find_lock_page(shadow->inode->i_mapping, bh->b_folio->index);  in nilfs_mdt_get_frozen_buffer()
609 static void nilfs_release_frozen_buffers(struct nilfs_shadow_map *shadow)  in nilfs_release_frozen_buffers()  argument
611 	struct list_head *head = &shadow->frozen_buffers;  in nilfs_release_frozen_buffers()
630 	struct nilfs_shadow_map *shadow = mi->mi_shadow;  in nilfs_mdt_restore_from_shadow_map()  local
638 	nilfs_copy_back_pages(inode->i_mapping, shadow->inode->i_mapping);  in nilfs_mdt_restore_from_shadow_map()
642 			      NILFS_I(shadow->inode)->i_assoc_inode->i_mapping);  in nilfs_mdt_restore_from_shadow_map()
644 	nilfs_bmap_restore(ii->i_bmap, &shadow->bmap_store);  in nilfs_mdt_restore_from_shadow_map()
650  * nilfs_mdt_clear_shadow_map - truncate pages in shadow map caches
656 	struct nilfs_shadow_map *shadow = mi->mi_shadow;  in nilfs_mdt_clear_shadow_map()  local
657 	struct inode *shadow_btnc_inode = NILFS_I(shadow->inode)->i_assoc_inode;  in nilfs_mdt_clear_shadow_map()
660 	nilfs_release_frozen_buffers(shadow);  in nilfs_mdt_clear_shadow_map()
661 	truncate_inode_pages(shadow->inode->i_mapping, 0);  in nilfs_mdt_clear_shadow_map()