[dm-devel] [PATCH v2] make dm and dm-crypt forward cgroup context (was: dm-crypt parallelization patches)

[Tejun Heo]

On Thu, Apr 11, 2013 at 12:52:03PM -0700, Tejun Heo wrote:
> If this becomes an actual bottleneck, the right thing to do is making
> css ref per-cpu.  Please stop messing around with refcounting.

If you think this kind of hackery is acceptable, you really need to
re-evaluate your priorities in making engineering decisions.  In
tightly coupled code, maybe, but you're trying to introduce utterly
broken error-prone thing as a generic block layer API.  I mean, are
you for real?

-- 
tejun