On Tue, Oct 10, 2023 at 04:40:19PM -0400, Josef Bacik wrote:
> The different encryption related options for fscrypt are too numerous to
> support for extent based encryption. Support for a few of these options
> could possibly be added, but since they're niche options simply reject
> them for file systems using extent based encryption.
>
> Signed-off-by: Josef Bacik <jo...@toxicpanda.com>
> ---
> fs/crypto/policy.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
> index 4729f21e21d8..75a69f02f11d 100644
> --- a/fs/crypto/policy.c
> +++ b/fs/crypto/policy.c
> @@ -209,6 +209,12 @@ static bool fscrypt_supported_v1_policy(const struct
> fscrypt_policy_v1 *policy,
> return false;
> }
>
> + if (inode->i_sb->s_cop->has_per_extent_encryption) {
> + fscrypt_warn(inode,
> + "v1 policies can't be used on file systems that
> use extent encryption");
> + return false;
> + }
> +
> return true;
> }
>
> @@ -269,6 +275,12 @@ static bool fscrypt_supported_v2_policy(const struct
> fscrypt_policy_v2 *policy,
> }
> }
>
> + if ((inode->i_sb->s_cop->has_per_extent_encryption) && count) {
> + fscrypt_warn(inode,
> + "Encryption flags aren't supported on file systems
> that use extent encryption");
> + return false;
> + }
> +
Perhaps this should just be folded into patch 3?
- Eric
