181 	struct fsverity_info *vi;  in fsverity_create_info()  local
184 	vi = kmem_cache_zalloc(fsverity_info_cachep, GFP_KERNEL);  in fsverity_create_info()
185 	if (!vi)  in fsverity_create_info()
187 	vi->inode = inode;  in fsverity_create_info()
189 	err = fsverity_init_merkle_tree_params(&vi->tree_params, inode,  in fsverity_create_info()
200 	memcpy(vi->root_hash, desc->root_hash, vi->tree_params.digest_size);  in fsverity_create_info()
202 	compute_file_digest(vi->tree_params.hash_alg, desc, vi->file_digest);  in fsverity_create_info()
204 	err = fsverity_verify_signature(vi, desc->signature,  in fsverity_create_info()
209 	if (vi->tree_params.block_size != PAGE_SIZE) {  in fsverity_create_info()
225 			vi->tree_params.tree_pages <<  in fsverity_create_info()
226 			vi->tree_params.log_blocks_per_page;  in fsverity_create_info()
228 		vi->hash_block_verified = kvcalloc(BITS_TO_LONGS(num_bits),  in fsverity_create_info()
231 		if (!vi->hash_block_verified) {  in fsverity_create_info()
237 	return vi;  in fsverity_create_info()
240 	fsverity_free_info(vi);  in fsverity_create_info()
244 void fsverity_set_info(struct inode *inode, struct fsverity_info *vi)  in fsverity_set_info()  argument
252 	if (cmpxchg_release(fsverity_info_addr(inode), NULL, vi) != NULL) {  in fsverity_set_info()
254 		fsverity_free_info(vi);  in fsverity_set_info()
263 void fsverity_free_info(struct fsverity_info *vi)  in fsverity_free_info()  argument
265 	if (!vi)  in fsverity_free_info()
267 	kfree(vi->tree_params.hashstate);  in fsverity_free_info()
268 	kvfree(vi->hash_block_verified);  in fsverity_free_info()
269 	kmem_cache_free(fsverity_info_cachep, vi);  in fsverity_free_info()
355 	struct fsverity_info *vi = fsverity_get_info(inode);  in ensure_verity_info()  local
359 	if (vi)  in ensure_verity_info()
366 	vi = fsverity_create_info(inode, desc);  in ensure_verity_info()
367 	if (IS_ERR(vi)) {  in ensure_verity_info()
368 		err = PTR_ERR(vi);  in ensure_verity_info()
372 	fsverity_set_info(inode, vi);  in ensure_verity_info()