# Re: \[RFC v1 0/2\] Plumbing to support multiple secure memory backends.

- From: Christoph Hellwig \<hch@infradead.org\>
- Date: 2020-10-14 06:32:43 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2020/10/9519100
- Thread: https://ratatoskr.run/linuxppc-dev/2020/10/9519079/t.md

```text
Please don't add an abstraction without a second implementation.
Once we have the implementation we can consider the tradeoffs.  E.g.
if expensive indirect function calls are really needed vs simple
branches.
```