Re: [PATCH 4/8] ext4 crypto: encrypt tmpfile located in encryption protected directory

Albino Biasutti Neto
2015-05-30T10:45:26Z

2015-05-29 13:33 GMT-03:00 Theodore Ts'o <tytso@mit.edu>:
> I think what you are asking is why is this function always returning
> NULL?

Yes. Or empty, only function.

> That's because it's in the #else clause of an #ifdef
> CONFIG_EXT4_FS_ENCRYPTION. In the case where
> CONFIG_EXT4_FS_ENCRYPTION is defined, it returns:
>
> static inline struct ext4_crypt_info *ext4_encryption_info(struct inode *inode)
> {
> return EXT4_I(inode)->i_crypt_info;
> }
>
> The idea is to minimize the need for #ifdef's in the .c files.

Understand, thanks.

Albino