On Thu, Oct 31, 2019 at 04:50:45PM -0400, Theodore Y. Ts'o wrote: > One of the reasons I really want this is so I (as an upstream > maintainer of ext4 and fscrypt) can test the new code paths using > xfstests on GCE, without needing special pre-release hardware that has > the ICE support. > > Yeah, I could probably get one of those dev boards internally at > Google, but they're a pain in the tuckus to use, and I'd much rather > be able to have my normal test infrastructure using gce-xfstests and > kvm-xfstests be able to test inline-crypto. So in terms of CI > testing, having the blk-crypto is really going to be helpful. Implementing the support in qemu or a special device mapper mode seems like a much better idea for that use case over carrying the code in the block layer and severely bloating the per-I/O data structure.
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