fs/nilfs2/mdt.c

474 	struct nilfs_shadow_map *shadow = mdi->mi_shadow;
479 	if (shadow) {
480 		struct inode *s_inode = shadow->inode;
482 		shadow->inode = NULL;
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)
521 	INIT_LIST_HEAD(&shadow->frozen_buffers);
527 	shadow->inode = s_inode;
528 	mi->mi_shadow = shadow;
533  * nilfs_mdt_save_to_shadow_map - copy bmap and dirty pages to shadow map
540 	struct nilfs_shadow_map *shadow = mi->mi_shadow;
541 	struct inode *s_inode = shadow->inode;
553 	nilfs_bmap_save(ii->i_bmap, &shadow->bmap_store);
560 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;
565 	folio = filemap_grab_folio(shadow->inode->i_mapping,
580 			      &shadow->frozen_buffers);
594 	struct nilfs_shadow_map *shadow = NILFS_MDT(inode)->mi_shadow;
599 	folio = filemap_lock_folio(shadow->inode->i_mapping,
613 static void nilfs_release_frozen_buffers(struct nilfs_shadow_map *shadow)
615 	struct list_head *head = &shadow->frozen_buffers;
634 	struct nilfs_shadow_map *shadow = mi->mi_shadow;
642 	nilfs_copy_back_pages(inode->i_mapping, shadow->inode->i_mapping);
646 			      NILFS_I(shadow->inode)->i_assoc_inode->i_mapping);
648 	nilfs_bmap_restore(ii->i_bmap, &shadow->bmap_store);
654  * nilfs_mdt_clear_shadow_map - truncate pages in shadow map caches
660 	struct nilfs_shadow_map *shadow = mi->mi_shadow;
661 	struct inode *shadow_btnc_inode = NILFS_I(shadow->inode)->i_assoc_inode;
664 	nilfs_release_frozen_buffers(shadow);
665 	truncate_inode_pages(shadow->inode->i_mapping, 0);