On Wed, Sep 23, 2020 at 10:47:21PM -0700, Eric Biggers wrote: > From: Eric Biggers <ebiggers@xxxxxxxxxx> > > Dentries that represent no-key names must have a dentry_operations that > includes fscrypt_d_revalidate(). Currently, this is handled by > fscrypt_prepare_lookup() installing fscrypt_d_ops. > > However, ceph support for encryption > (https://lore.kernel.org/r/20200914191707.380444-1-jlayton@xxxxxxxxxx) > can't use fscrypt_d_ops, since ceph already has its own > dentry_operations. > > Similarly, ext4 and f2fs support for directories that are both encrypted > and casefolded > (https://lore.kernel.org/r/20200923010151.69506-1-drosen@xxxxxxxxxx) > can't use fscrypt_d_ops either, since casefolding requires some dentry > operations too. > > To satisfy both users, we need to move the responsibility of installing > the dentry_operations to filesystems. > > In preparation for this, export fscrypt_d_revalidate() and give it a > !CONFIG_FS_ENCRYPTION stub. > > Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> > --- > > Compared to the versions of this patch from Jeff and Daniel, I've > improved the commit message and added a !CONFIG_FS_ENCRYPTION stub, > which was missing. I'm planning to apply this for 5.10 in preparation > for both the ceph patchset and the encrypt+casefold patchset. > > > fs/crypto/fname.c | 3 ++- > include/linux/fscrypt.h | 7 +++++++ > 2 files changed, 9 insertions(+), 1 deletion(-) Applied to fscrypt.git#master for 5.10. - Eric
