Re: [Qemu-devel] [RFC PATCH 1/1] ceph/rbd block driver for qemu-kvm

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On 05/24/2010 10:38 PM, Anthony Liguori wrote:

- Building a plugin API seems a bit simpler to me, although I'm to
sure if I'd get the
   idea correctly:
The block layer has already some kind of api (.bdrv_file_open, .bdrv_read). We could simply compile the block-drivers as shared objects and create a method
   for loading the necessary modules at runtime.

That approach would be a recipe for disaster. We would have to introduce a new, reduced functionality block API that was supported for plugins. Otherwise, the only way a plugin could keep up with our API changes would be if it was in tree which defeats the purpose of having plugins.

We could guarantee API/ABI stability in a stable branch but not across releases.

--
error compiling committee.c: too many arguments to function

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