Re: [PATCH 05/36] fscrypt: uninline and export fscrypt_require_key

Eric Biggers
2021-12-10T19:46:18Z

On Thu, Dec 09, 2021 at 10:36:16AM -0500, Jeff Layton wrote:
> ceph_atomic_open needs to be able to call this.
>
> Signed-off-by: Jeff Layton <jlayton@kernel.org>
> ---
> fs/crypto/fscrypt_private.h | 26 --------------------------
> fs/crypto/keysetup.c | 27 +++++++++++++++++++++++++++
> include/linux/fscrypt.h | 5 +++++
> 3 files changed, 32 insertions(+), 26 deletions(-)

What is the use case for this, more precisely? I've been trying to keep
filesystems using helper functions like fscrypt_prepare_*() and
fscrypt_file_open() rather than setting up encryption keys directly, which is a
bit too low-level to be doing outside of fs/crypto/.

Perhaps fscrypt_file_open() is what you're looking for here?

- Eric