On Tue, 4 Feb 2025, Harald Freudenberger wrote:
> Thanks Mikulas for your feedback.
> As of now all this looks like a dead end to our attempt on trying to
> provide a phmac-shaxxx digest for use with dm-integrity. Thanks for
> your effort. Don't expect another version of this patch as I can't
> fullfill the requirements.
Hi
I think that it is possible to make it work for you with async-only
hashes.
As for calling integrity_sector_checksum from dm_integrity_end_io - we can
offload this operation to a workqueue when using an async hash.
As for memory allocation in the I/O path - we can move the sector_le and
ahash_request fields to the structure dm_integrity_io. So, that there is
no allocation in the I/O path.
I fixed your patches and I'll send them in the next email - please test
them.
I tested them with the cryptsetup testsuite (and I hacked the code so that
it prefers ahash over shash) and it passed.
Mikulas
