[dm-devel] [high-level] user-space access to dm target?
Akira Hayakawa
ruby.wktk at gmail.com
Mon Aug 8 03:42:29 UTC 2016
Hi Peter,
Just curious.
Are you looking for device-mapper in userland like FUSE?
Akira
On 2016/08/04 6:46, Peter Desnoyers wrote:
> We’re developing an SMR translation layer in a device mapper target, and we’d like to keep a lot of the complexity (recovery at startup, parts of the garbage collection algorithm) in user space.
>
> I was wondering what people’s thoughts are on the best strategy for the user/kernel interface here?
>
> We’re currently doing something quite gross - using a /proc file with a simple protocol based on reading and writing fixed-sized binary messages. For our purposes this works fairly well, but clearly we need something cleaner if we want this to go anywhere.
>
> Thanks,
> .....................................................................
> Peter Desnoyers pjd at ccs.neu.edu
> Northeastern Computer & Information Science (617) 373-8683
>
>
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