40 static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk,
986 static int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk,  in yaffs_find_chunk_in_file()  argument
994 	struct yaffs_dev *dev = in->my_dev;  in yaffs_find_chunk_in_file()
1001 	tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);  in yaffs_find_chunk_in_file()
1008 	ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id,  in yaffs_find_chunk_in_file()
1013 static int yaffs_find_del_file_chunk(struct yaffs_obj *in, int inode_chunk,  in yaffs_find_del_file_chunk()  argument
1020 	struct yaffs_dev *dev = in->my_dev;  in yaffs_find_del_file_chunk()
1028 	tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);  in yaffs_find_del_file_chunk()
1035 	ret_val = yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id,  in yaffs_find_del_file_chunk()
1045 int yaffs_put_chunk_in_file(struct yaffs_obj *in, int inode_chunk,  in yaffs_put_chunk_in_file()  argument
1056 	struct yaffs_dev *dev = in->my_dev;  in yaffs_put_chunk_in_file()
1062 	if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) {  in yaffs_put_chunk_in_file()
1079 				    &in->variant.file_variant,  in yaffs_put_chunk_in_file()
1125 				    yaffs_find_chunk_in_file(in, inode_chunk,  in yaffs_put_chunk_in_file()
1171 		in->n_data_chunks++;  in yaffs_put_chunk_in_file()
1202 static int yaffs_soft_del_worker(struct yaffs_obj *in, struct yaffs_tnode *tn,  in yaffs_soft_del_worker()  argument
1208 	struct yaffs_dev *dev = in->my_dev;  in yaffs_soft_del_worker()
1219 				    yaffs_soft_del_worker(in,  in yaffs_soft_del_worker()
1582 static void yaffs_invalidate_whole_cache(struct yaffs_obj *in)  in yaffs_invalidate_whole_cache()  argument
1585 	struct yaffs_dev *dev = in->my_dev;  in yaffs_invalidate_whole_cache()
1590 			if (dev->cache[i].object == in)  in yaffs_invalidate_whole_cache()
1647 static int yaffs_generic_obj_del(struct yaffs_obj *in)  in yaffs_generic_obj_del()  argument
1650 	yaffs_invalidate_whole_cache(in);  in yaffs_generic_obj_del()
1652 	if (in->my_dev->param.is_yaffs2 && in->parent != in->my_dev->del_dir) {  in yaffs_generic_obj_del()
1654 		yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0,  in yaffs_generic_obj_del()
1658 	yaffs_remove_obj_from_dir(in);  in yaffs_generic_obj_del()
1659 	yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__);  in yaffs_generic_obj_del()
1660 	in->hdr_chunk = 0;  in yaffs_generic_obj_del()
1662 	yaffs_free_obj(in);  in yaffs_generic_obj_del()
1886 static void yaffs_hash_obj(struct yaffs_obj *in)  in yaffs_hash_obj()  argument
1888 	int bucket = yaffs_hash_fn(in->obj_id);  in yaffs_hash_obj()
1889 	struct yaffs_dev *dev = in->my_dev;  in yaffs_hash_obj()
1891 	list_add(&in->hash_link, &dev->obj_bucket[bucket].list);  in yaffs_hash_obj()
1899 	struct yaffs_obj *in;  in yaffs_find_by_number()  local
1903 		in = list_entry(i, struct yaffs_obj, hash_link);  in yaffs_find_by_number()
1904 		if (in->obj_id == number) {  in yaffs_find_by_number()
1906 			if (in->defered_free)  in yaffs_find_by_number()
1908 			return in;  in yaffs_find_by_number()
2121 	struct yaffs_obj *in;  in yaffs_create_obj()  local
2136 	in = yaffs_new_obj(dev, -1, type);  in yaffs_create_obj()
2138 	if (!in) {  in yaffs_create_obj()
2143 	in->hdr_chunk = 0;  in yaffs_create_obj()
2144 	in->valid = 1;  in yaffs_create_obj()
2145 	in->variant_type = type;  in yaffs_create_obj()
2147 	in->yst_mode = mode;  in yaffs_create_obj()
2149 	yaffs_attribs_init(in, gid, uid, rdev);  in yaffs_create_obj()
2151 	in->n_data_chunks = 0;  in yaffs_create_obj()
2153 	yaffs_set_obj_name(in, name);  in yaffs_create_obj()
2154 	in->dirty = 1;  in yaffs_create_obj()
2156 	yaffs_add_obj_to_dir(parent, in);  in yaffs_create_obj()
2158 	in->my_dev = parent->my_dev;  in yaffs_create_obj()
2162 		in->variant.symlink_variant.alias = str;  in yaffs_create_obj()
2165 		in->variant.hardlink_variant.equiv_obj = equiv_obj;  in yaffs_create_obj()
2166 		in->variant.hardlink_variant.equiv_id = equiv_obj->obj_id;  in yaffs_create_obj()
2167 		list_add(&in->hard_links, &equiv_obj->hard_links);  in yaffs_create_obj()
2177 	if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) {  in yaffs_create_obj()
2179 		yaffs_del_obj(in);  in yaffs_create_obj()
2180 		in = NULL;  in yaffs_create_obj()
2183 	if (in)  in yaffs_create_obj()
2186 	return in;  in yaffs_create_obj()
2907 static int yaffs_rd_data_obj(struct yaffs_obj *in, int inode_chunk, u8 * buffer)  in yaffs_rd_data_obj()  argument
2909 	int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL);  in yaffs_rd_data_obj()
2912 		return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk,  in yaffs_rd_data_obj()
2919 		memset(buffer, 0, in->my_dev->data_bytes_per_chunk);  in yaffs_rd_data_obj()
2983 static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk,  in yaffs_wr_data_obj()  argument
2995 	struct yaffs_dev *dev = in->my_dev;  in yaffs_wr_data_obj()
3003 	prev_chunk_id = yaffs_find_chunk_in_file(in, inode_chunk, &prev_tags);  in yaffs_wr_data_obj()
3005 	    !yaffs_put_chunk_in_file(in, inode_chunk, 0, 0))  in yaffs_wr_data_obj()
3012 	new_tags.obj_id = in->obj_id;  in yaffs_wr_data_obj()
3028 		yaffs_put_chunk_in_file(in, inode_chunk, new_chunk_id, 0);  in yaffs_wr_data_obj()
3033 		yaffs_verify_file_sane(in);  in yaffs_wr_data_obj()
3159 static void yaffs_check_obj_details_loaded(struct yaffs_obj *in)  in yaffs_check_obj_details_loaded()  argument
3166 	if (!in || !in->lazy_loaded || in->hdr_chunk < 1)  in yaffs_check_obj_details_loaded()
3169 	dev = in->my_dev;  in yaffs_check_obj_details_loaded()
3170 	in->lazy_loaded = 0;  in yaffs_check_obj_details_loaded()
3173 	yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags);  in yaffs_check_obj_details_loaded()
3176 	in->yst_mode = oh->yst_mode;  in yaffs_check_obj_details_loaded()
3177 	yaffs_load_attribs(in, oh);  in yaffs_check_obj_details_loaded()
3178 	yaffs_set_obj_name_from_oh(in, oh);  in yaffs_check_obj_details_loaded()
3180 	if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) {  in yaffs_check_obj_details_loaded()
3181 		in->variant.symlink_variant.alias =  in yaffs_check_obj_details_loaded()
3259 int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, int force,  in yaffs_update_oh()  argument
3264 	struct yaffs_dev *dev = in->my_dev;  in yaffs_update_oh()
3278 	if (in->fake && in != dev->root_dir && !force && !xmod)  in yaffs_update_oh()
3282 	yaffs_check_obj_details_loaded(in);  in yaffs_update_oh()
3284 	buffer = yaffs_get_temp_buffer(in->my_dev);  in yaffs_update_oh()
3287 	prev_chunk_id = in->hdr_chunk;  in yaffs_update_oh()
3293 		yaffs_verify_oh(in, oh, &old_tags, 0);  in yaffs_update_oh()
3300 	oh->type = in->variant_type;  in yaffs_update_oh()
3301 	oh->yst_mode = in->yst_mode;  in yaffs_update_oh()
3304 	yaffs_load_attribs_oh(oh, in);  in yaffs_update_oh()
3306 	if (in->parent)  in yaffs_update_oh()
3307 		oh->parent_obj_id = in->parent->obj_id;  in yaffs_update_oh()
3322 	switch (in->variant_type) {  in yaffs_update_oh()
3329 			file_size = in->variant.file_variant.file_size;  in yaffs_update_oh()
3333 		oh->equiv_id = in->variant.hardlink_variant.equiv_id;  in yaffs_update_oh()
3342 		alias = in->variant.symlink_variant.alias;  in yaffs_update_oh()
3352 		yaffs_apply_xattrib_mod(in, (char *)buffer, xmod);  in yaffs_update_oh()
3356 	in->serial++;  in yaffs_update_oh()
3358 	new_tags.obj_id = in->obj_id;  in yaffs_update_oh()
3359 	new_tags.serial_number = in->serial;  in yaffs_update_oh()
3368 	new_tags.extra_obj_type = in->variant_type;  in yaffs_update_oh()
3369 	yaffs_verify_oh(in, oh, &new_tags, 1);  in yaffs_update_oh()
3382 	in->hdr_chunk = new_chunk_id;  in yaffs_update_oh()
3387 	if (!yaffs_obj_cache_dirty(in))  in yaffs_update_oh()
3388 		in->dirty = 0;  in yaffs_update_oh()
3393 		bi = yaffs_get_block_info(in->my_dev,  in yaffs_update_oh()
3395 					  in->my_dev->param.chunks_per_block);  in yaffs_update_oh()
3413 int yaffs_file_rd(struct yaffs_obj *in, u8 * buffer, loff_t offset, int n_bytes)  in yaffs_file_rd()  argument
3423 	dev = in->my_dev;  in yaffs_file_rd()
3437 		cache = yaffs_find_chunk_cache(in, chunk);  in yaffs_file_rd()
3452 					    yaffs_grab_chunk_cache(in->my_dev);  in yaffs_file_rd()
3453 					cache->object = in;  in yaffs_file_rd()
3457 					yaffs_rd_data_obj(in, chunk,  in yaffs_file_rd()
3474 				yaffs_rd_data_obj(in, chunk, local_buffer);  in yaffs_file_rd()
3482 			yaffs_rd_data_obj(in, chunk, buffer);  in yaffs_file_rd()
3492 int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset,  in yaffs_do_file_wr()  argument
3508 	dev = in->my_dev;  in yaffs_do_file_wr()
3538 			if (chunk_start > in->variant.file_variant.file_size)  in yaffs_do_file_wr()
3542 				    in->variant.file_variant.file_size -  in yaffs_do_file_wr()
3572 				cache = yaffs_find_chunk_cache(in, chunk);  in yaffs_do_file_wr()
3577 					cache->object = in;  in yaffs_do_file_wr()
3581 					yaffs_rd_data_obj(in, chunk,  in yaffs_do_file_wr()
3624 				yaffs_rd_data_obj(in, chunk, local_buffer);  in yaffs_do_file_wr()
3628 				    yaffs_wr_data_obj(in, chunk,  in yaffs_do_file_wr()
3638 			    yaffs_wr_data_obj(in, chunk, buffer,  in yaffs_do_file_wr()
3643 			yaffs_invalidate_chunk_cache(in, chunk);  in yaffs_do_file_wr()
3656 	if ((start_write + n_done) > in->variant.file_variant.file_size)  in yaffs_do_file_wr()
3657 		in->variant.file_variant.file_size = (start_write + n_done);  in yaffs_do_file_wr()
3659 	in->dirty = 1;  in yaffs_do_file_wr()
3663 int yaffs_wr_file(struct yaffs_obj *in, const u8 *buffer, loff_t offset,  in yaffs_wr_file()  argument
3666 	yaffs2_handle_hole(in, offset);  in yaffs_wr_file()
3667 	return yaffs_do_file_wr(in, buffer, offset, n_bytes, write_through);  in yaffs_wr_file()
3672 static void yaffs_prune_chunks(struct yaffs_obj *in, loff_t new_size)  in yaffs_prune_chunks()  argument
3675 	struct yaffs_dev *dev = in->my_dev;  in yaffs_prune_chunks()
3676 	loff_t old_size = in->variant.file_variant.file_size;  in yaffs_prune_chunks()
3702 		chunk_id = yaffs_find_del_file_chunk(in, i, NULL);  in yaffs_prune_chunks()
3716 			in->n_data_chunks--;  in yaffs_prune_chunks()
3752 int yaffs_resize_file(struct yaffs_obj *in, loff_t new_size)  in yaffs_resize_file()  argument
3754 	struct yaffs_dev *dev = in->my_dev;  in yaffs_resize_file()
3755 	loff_t old_size = in->variant.file_variant.file_size;  in yaffs_resize_file()
3757 	yaffs_flush_file_cache(in);  in yaffs_resize_file()
3758 	yaffs_invalidate_whole_cache(in);  in yaffs_resize_file()
3762 	if (in->variant_type != YAFFS_OBJECT_TYPE_FILE)  in yaffs_resize_file()
3769 		yaffs2_handle_hole(in, new_size);  in yaffs_resize_file()
3770 		in->variant.file_variant.file_size = new_size;  in yaffs_resize_file()
3773 		yaffs_resize_file_down(in, new_size);  in yaffs_resize_file()
3781 	if (in->parent &&  in yaffs_resize_file()
3782 	    !in->is_shadowed &&  in yaffs_resize_file()
3783 	    in->parent->obj_id != YAFFS_OBJECTID_UNLINKED &&  in yaffs_resize_file()
3784 	    in->parent->obj_id != YAFFS_OBJECTID_DELETED)  in yaffs_resize_file()
3785 		yaffs_update_oh(in, NULL, 0, 0, 0, NULL);  in yaffs_resize_file()
3790 int yaffs_flush_file(struct yaffs_obj *in, int update_time, int data_sync)  in yaffs_flush_file()  argument
3792 	if (!in->dirty)  in yaffs_flush_file()
3795 	yaffs_flush_file_cache(in);  in yaffs_flush_file()
3801 		yaffs_load_current_time(in, 0, 0);  in yaffs_flush_file()
3803 	return (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >= 0) ?  in yaffs_flush_file()
3812 static int yaffs_unlink_file_if_needed(struct yaffs_obj *in)  in yaffs_unlink_file_if_needed()  argument
3816 	struct yaffs_dev *dev = in->my_dev;  in yaffs_unlink_file_if_needed()
3818 	if (!in->my_inode)  in yaffs_unlink_file_if_needed()
3823 		    yaffs_change_obj_name(in, in->my_dev->del_dir,  in yaffs_unlink_file_if_needed()
3827 			in->obj_id);  in yaffs_unlink_file_if_needed()
3828 		in->deleted = 1;  in yaffs_unlink_file_if_needed()
3829 		in->my_dev->n_deleted_files++;  in yaffs_unlink_file_if_needed()
3831 			yaffs_resize_file(in, 0);  in yaffs_unlink_file_if_needed()
3832 		yaffs_soft_del_file(in);  in yaffs_unlink_file_if_needed()
3835 		    yaffs_change_obj_name(in, in->my_dev->unlinked_dir,  in yaffs_unlink_file_if_needed()
3841 int yaffs_del_file(struct yaffs_obj *in)  in yaffs_del_file()  argument
3845 	struct yaffs_dev *dev = in->my_dev;  in yaffs_del_file()
3848 		yaffs_resize_file(in, 0);  in yaffs_del_file()
3850 	if (in->n_data_chunks > 0) {  in yaffs_del_file()
3854 		if (!in->unlinked)  in yaffs_del_file()
3855 			ret_val = yaffs_unlink_file_if_needed(in);  in yaffs_del_file()
3857 		deleted = in->deleted;  in yaffs_del_file()
3859 		if (ret_val == YAFFS_OK && in->unlinked && !in->deleted) {  in yaffs_del_file()
3860 			in->deleted = 1;  in yaffs_del_file()
3862 			in->my_dev->n_deleted_files++;  in yaffs_del_file()
3863 			yaffs_soft_del_file(in);  in yaffs_del_file()
3868 		yaffs_free_tnode(in->my_dev, in->variant.file_variant.top);  in yaffs_del_file()
3869 		in->variant.file_variant.top = NULL;  in yaffs_del_file()
3870 		yaffs_generic_obj_del(in);  in yaffs_del_file()
3892 static int yaffs_del_symlink(struct yaffs_obj *in)  in yaffs_del_symlink()  argument
3894 	kfree(in->variant.symlink_variant.alias);  in yaffs_del_symlink()
3895 	in->variant.symlink_variant.alias = NULL;  in yaffs_del_symlink()
3897 	return yaffs_generic_obj_del(in);  in yaffs_del_symlink()
3900 static int yaffs_del_link(struct yaffs_obj *in)  in yaffs_del_link()  argument
3905 	list_del_init(&in->hard_links);  in yaffs_del_link()
3906 	return yaffs_generic_obj_del(in);  in yaffs_del_link()
4150 	struct yaffs_obj *in;  in yaffs_link_fixup()  local
4154 		in = yaffs_find_by_number(dev,  in yaffs_link_fixup()
4157 		if (in) {  in yaffs_link_fixup()
4159 			hl->variant.hardlink_variant.equiv_obj = in;  in yaffs_link_fixup()
4160 			list_add(&hl->hard_links, &in->hard_links);  in yaffs_link_fixup()