Re: [RFC 0/6] ext4: Move out crypto ops to ext4_crypto.c

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On Thu, Apr 21, 2022 at 10:53:16AM +0530, Ritesh Harjani wrote:
> Hello,
> 
> This is 1st in the series to cleanup ext4/super.c, since it has grown quite large.
> This moves out crypto related ops and few definitions to fs/ext4/ext4_crypto.c
> 
> Testing
> =========
> 1. Tested "-g encrypt" with default configs.
> 2. Compiled tested on x86 & Power.
> 
> 
> Ritesh Harjani (6):
>   fscrypt: Provide definition of fscrypt_set_test_dummy_encryption
>   ext4: Move ext4 crypto code to its own file ext4_crypto.c
>   ext4: Directly opencode ext4_set_test_dummy_encryption
>   ext4: Cleanup function defs from ext4.h into ext4_crypto.c
>   ext4: Move all encryption related into a common #ifdef
>   ext4: Use provided macro for checking dummy_enc_policy
> 
>  fs/ext4/Makefile        |   1 +
>  fs/ext4/ext4.h          |  81 +++--------------
>  fs/ext4/ext4_crypto.c   | 192 ++++++++++++++++++++++++++++++++++++++++
>  fs/ext4/super.c         | 158 ++++-----------------------------
>  include/linux/fscrypt.h |   7 ++
>  5 files changed, 227 insertions(+), 212 deletions(-)
>  create mode 100644 fs/ext4/ext4_crypto.c

How about calling it crypto.c instead of ext4_crypto.c?  It is already in the
ext4 directory, so ext4 is implied.

Otherwise this patchset looks good to me.

Did you consider moving any of the other CONFIG_FS_ENCRYPTION code blocks into
the new file as well?  The implementation of FS_IOC_GET_ENCRYPTION_PWSALT might
be a good candidate too.

- Eric



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