157 				  struct fscrypt_master_key *mk,  in setup_per_mode_enc_key()  argument
194 	err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,  in setup_per_mode_enc_key()
212 			       const struct fscrypt_master_key *mk)  in fscrypt_derive_dirhash_key()  argument
216 	err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, HKDF_CONTEXT_DIRHASH_KEY,  in fscrypt_derive_dirhash_key()
227 			       const struct fscrypt_master_key *mk)  in fscrypt_hash_inode_number()  argument
230 	WARN_ON(!mk->mk_ino_hash_key_initialized);  in fscrypt_hash_inode_number()
233 					      &mk->mk_ino_hash_key);  in fscrypt_hash_inode_number()
237 					    struct fscrypt_master_key *mk)  in fscrypt_setup_iv_ino_lblk_32_key()  argument
241 	err = setup_per_mode_enc_key(ci, mk, mk->mk_iv_ino_lblk_32_keys,  in fscrypt_setup_iv_ino_lblk_32_key()
247 	if (!smp_load_acquire(&mk->mk_ino_hash_key_initialized)) {  in fscrypt_setup_iv_ino_lblk_32_key()
251 		if (mk->mk_ino_hash_key_initialized)  in fscrypt_setup_iv_ino_lblk_32_key()
254 		err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,  in fscrypt_setup_iv_ino_lblk_32_key()
256 					  (u8 *)&mk->mk_ino_hash_key,  in fscrypt_setup_iv_ino_lblk_32_key()
257 					  sizeof(mk->mk_ino_hash_key));  in fscrypt_setup_iv_ino_lblk_32_key()
261 		smp_store_release(&mk->mk_ino_hash_key_initialized, true);  in fscrypt_setup_iv_ino_lblk_32_key()
273 		fscrypt_hash_inode_number(ci, mk);  in fscrypt_setup_iv_ino_lblk_32_key()
278 				     struct fscrypt_master_key *mk,  in fscrypt_setup_v2_file_key()  argument
292 		err = setup_per_mode_enc_key(ci, mk, mk->mk_direct_keys,  in fscrypt_setup_v2_file_key()
302 		err = setup_per_mode_enc_key(ci, mk, mk->mk_iv_ino_lblk_64_keys,  in fscrypt_setup_v2_file_key()
307 		err = fscrypt_setup_iv_ino_lblk_32_key(ci, mk);  in fscrypt_setup_v2_file_key()
311 		err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,  in fscrypt_setup_v2_file_key()
326 		err = fscrypt_derive_dirhash_key(ci, mk);  in fscrypt_setup_v2_file_key()
349 	struct fscrypt_master_key *mk = NULL;  in setup_file_encryption_key()  local
390 	mk = key->payload.data[0];  in setup_file_encryption_key()
391 	down_read(&mk->mk_secret_sem);  in setup_file_encryption_key()
394 	if (!is_master_key_secret_present(&mk->mk_secret)) {  in setup_file_encryption_key()
405 	if (mk->mk_secret.size < ci->ci_mode->keysize) {  in setup_file_encryption_key()
410 			     mk->mk_secret.size, ci->ci_mode->keysize);  in setup_file_encryption_key()
417 		err = fscrypt_setup_v1_file_key(ci, mk->mk_secret.raw);  in setup_file_encryption_key()
420 		err = fscrypt_setup_v2_file_key(ci, mk, need_dirhash_key);  in setup_file_encryption_key()
434 	up_read(&mk->mk_secret_sem);  in setup_file_encryption_key()
453 		struct fscrypt_master_key *mk = key->payload.data[0];  in put_crypt_info()  local
463 		spin_lock(&mk->mk_decrypted_inodes_lock);  in put_crypt_info()
465 		spin_unlock(&mk->mk_decrypted_inodes_lock);  in put_crypt_info()
466 		if (refcount_dec_and_test(&mk->mk_refcount))  in put_crypt_info()
522 			struct fscrypt_master_key *mk =  in fscrypt_setup_encryption_info()  local
525 			refcount_inc(&mk->mk_refcount);  in fscrypt_setup_encryption_info()
527 			spin_lock(&mk->mk_decrypted_inodes_lock);  in fscrypt_setup_encryption_info()
529 				 &mk->mk_decrypted_inodes);  in fscrypt_setup_encryption_info()
530 			spin_unlock(&mk->mk_decrypted_inodes_lock);  in fscrypt_setup_encryption_info()
537 		struct fscrypt_master_key *mk = master_key->payload.data[0];  in fscrypt_setup_encryption_info()  local
539 		up_read(&mk->mk_secret_sem);  in fscrypt_setup_encryption_info()
691 	const struct fscrypt_master_key *mk;  in fscrypt_drop_inode()  local
701 	mk = ci->ci_master_key->payload.data[0];  in fscrypt_drop_inode()
720 	return !is_master_key_secret_present(&mk->mk_secret);  in fscrypt_drop_inode()