[PATCH 0 of 2 v3] Sanity checking of scheduling parameters

[Dario Faggioli <raistlin@linux.it>]

Hi,

This small series achieves two goals:
 - check the return value of libxl_domain_sched_params_set() in
   libxl__build_post() and deal with the error, if that is the
   case (patch #1);
 - check and ensue we are passing along a meaningful set of sedf
   scheduling parameters when they come directly from the config file
   (patch #2)

Tested on both credit and sedf schedulers.

Changes from v2:
 * actually propagate the error correctly instead of always returning
   INVAL (in patch #1).

Changes from v1:
 * patch #1: it was not there at all in v1! :-P
 * patch #2: the if-s have been moved into an helper function. Also,
   they only happen if the domain is actually being scheduled with
   sedf (IanC, yes, I decided to do it... At the end of the day, it is
   simple enough I think).


Thanks and Regards,
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
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Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)