diff options
Diffstat (limited to 'fs/ubifs/crypto.c')
| -rw-r--r-- | fs/ubifs/crypto.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c index c57b46a352d8..0b14d004a095 100644 --- a/fs/ubifs/crypto.c +++ b/fs/ubifs/crypto.c @@ -24,6 +24,17 @@ static bool ubifs_crypt_empty_dir(struct inode *inode) return ubifs_check_dir_empty(inode) == 0; } +/** + * ubifs_encrypt - Encrypt data. + * @inode: inode which refers to the data node + * @dn: data node to encrypt + * @in_len: length of data to be compressed + * @out_len: allocated memory size for the data area of @dn + * @block: logical block number of the block + * + * This function encrypt a possibly-compressed data in the data node. + * The encrypted data length will store in @out_len. + */ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn, unsigned int in_len, unsigned int *out_len, int block) { @@ -40,7 +51,7 @@ int ubifs_encrypt(const struct inode *inode, struct ubifs_data_node *dn, memset(p + in_len, 0, pad_len - in_len); err = fscrypt_encrypt_block_inplace(inode, virt_to_page(p), pad_len, - offset_in_page(p), block, GFP_NOFS); + offset_in_page(p), block); if (err) { ubifs_err(c, "fscrypt_encrypt_block_inplace() failed: %d", err); return err; @@ -77,8 +88,9 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn, } const struct fscrypt_operations ubifs_crypt_operations = { - .flags = FS_CFLG_OWN_PAGES, - .key_prefix = "ubifs:", + .inode_info_offs = (int)offsetof(struct ubifs_inode, i_crypt_info) - + (int)offsetof(struct ubifs_inode, vfs_inode), + .legacy_key_prefix = "ubifs:", .get_context = ubifs_crypt_get_context, .set_context = ubifs_crypt_set_context, .empty_dir = ubifs_crypt_empty_dir, |