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[Xen-devel] [PATCH 0 of 1] sched: rework locking for dump debugkey.

Hi George, everyone,

I noticed this issue while going through the scheduling code. Basically,
for the runq debugkey, locking happens in schedule.c (which we usually
don't want) and doesn't seem take credit2's runqs<-->CPUs mapping into

I think this patch correctly deals with locking in this specific case,
but of course I'm happy to hear what you think! :-)
I tested the patch with all schedulers, but as you can imagine it's
quite hard to produce an actual race and see if it is being handled

Thanks and Regards,

<<This happens because I choose it to happen!>> (Raistlin Majere)
Dario Faggioli, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
PhD Candidate, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa (Italy)

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