Re: [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite

[Paolo Bonzini]

On 16/03/2016 19:18, Stefan Hajnoczi wrote:
> Looks good overall.  I'm a little nervous about merging it for QEMU 2.6
> but the block job, NBD, and data plane tests should give it a good
> workout.

Apart from QEMU nearing hard freeze, I totally understand not wanting to
commit to merging part 1 of n where n will probably be a dozen or so.
I'm open to experimenting with different models for handling long-term
contributions.

For example, each part will probably have an uncontroversial and
generally useful prefix---for example patches 1-4 in this case, or the
change to a single linux-aio context per iothread.  You could merge
those only, and for the rest, I will maintain myself a branch with R-b
from maintainers.  Master will be periodically merged into it, but not
too frequently---it could be only after each part is accepted, or when
there is some important bugfix to catch.  Once the whole multiqueue
thing gets somewhere I would send you a pull request with the entire
feature, which would consist of say 200 patches all with a Reviewed-by
already.

This is just a possibility; if you have any other idea, I'd be happy to
follow it.

Paolo