43 static unsigned int fscrypt_get_dun_bytes(const struct fscrypt_inode_info *ci)  in fscrypt_get_dun_bytes()  argument
45 	const struct super_block *sb = ci->ci_inode->i_sb;  in fscrypt_get_dun_bytes()
46 	unsigned int flags = fscrypt_policy_flags(&ci->ci_policy);  in fscrypt_get_dun_bytes()
59 	dun_bits = fscrypt_max_file_dun_bits(sb, ci->ci_data_unit_bits);  in fscrypt_get_dun_bytes()
93 int fscrypt_select_encryption_impl(struct fscrypt_inode_info *ci,  in fscrypt_select_encryption_impl()  argument
96 	const struct inode *inode = ci->ci_inode;  in fscrypt_select_encryption_impl()
108 	if (ci->ci_mode->blk_crypto_mode == BLK_ENCRYPTION_MODE_INVALID)  in fscrypt_select_encryption_impl()
123 	if ((fscrypt_policy_flags(&ci->ci_policy) &  in fscrypt_select_encryption_impl()
132 	crypto_cfg.crypto_mode = ci->ci_mode->blk_crypto_mode;  in fscrypt_select_encryption_impl()
133 	crypto_cfg.data_unit_size = 1U << ci->ci_data_unit_bits;  in fscrypt_select_encryption_impl()
134 	crypto_cfg.dun_bytes = fscrypt_get_dun_bytes(ci);  in fscrypt_select_encryption_impl()
147 	fscrypt_log_blk_crypto_impl(ci->ci_mode, devs, num_devs, &crypto_cfg);  in fscrypt_select_encryption_impl()
149 	ci->ci_inlinecrypt = true;  in fscrypt_select_encryption_impl()
159 				     const struct fscrypt_inode_info *ci)  in fscrypt_prepare_inline_crypt_key()  argument
161 	const struct inode *inode = ci->ci_inode;  in fscrypt_prepare_inline_crypt_key()
163 	enum blk_crypto_mode_num crypto_mode = ci->ci_mode->blk_crypto_mode;  in fscrypt_prepare_inline_crypt_key()
177 				  crypto_mode, fscrypt_get_dun_bytes(ci),  in fscrypt_prepare_inline_crypt_key()
178 				  1U << ci->ci_data_unit_bits);  in fscrypt_prepare_inline_crypt_key()
270 static void fscrypt_generate_dun(const struct fscrypt_inode_info *ci,  in fscrypt_generate_dun()  argument
274 	u64 index = lblk_num << ci->ci_data_units_per_block_bits;  in fscrypt_generate_dun()
278 	fscrypt_generate_iv(&iv, index, ci);  in fscrypt_generate_dun()
282 	for (i = 0; i < ci->ci_mode->ivsize/sizeof(dun[0]); i++)  in fscrypt_generate_dun()
305 	const struct fscrypt_inode_info *ci;  in fscrypt_set_bio_crypt_ctx()  local
310 	ci = fscrypt_get_inode_info_raw(inode);  in fscrypt_set_bio_crypt_ctx()
312 	fscrypt_generate_dun(ci, first_lblk, dun);  in fscrypt_set_bio_crypt_ctx()
313 	bio_crypt_set_ctx(bio, ci->ci_enc_key.blk_key, dun, gfp_mask);  in fscrypt_set_bio_crypt_ctx()
387 	const struct fscrypt_inode_info *ci;  in fscrypt_mergeable_bio()  local
394 	ci = fscrypt_get_inode_info_raw(inode);  in fscrypt_mergeable_bio()
401 	if (bc->bc_key != ci->ci_enc_key.blk_key)  in fscrypt_mergeable_bio()
404 	fscrypt_generate_dun(ci, next_lblk, next_dun);  in fscrypt_mergeable_bio()
497 	const struct fscrypt_inode_info *ci;  in fscrypt_limit_io_blocks()  local
506 	ci = fscrypt_get_inode_info_raw(inode);  in fscrypt_limit_io_blocks()
507 	if (!(fscrypt_policy_flags(&ci->ci_policy) &  in fscrypt_limit_io_blocks()
513 	dun = ci->ci_hashed_ino + lblk;  in fscrypt_limit_io_blocks()