[PATCH 0 of 4 v7/leftover] Automatic NUMA placement for xl

[Dario Faggioli <raistlin@linux.it>]

Hi Everyone again,

New version (v7) of the last bit of the NUMA placement series, addressing all
the comments the last round received:

 1/4 libxl: kill the need for checking and linking to libm
 2/4 libxl: enable automatic placement of guests on NUMA nodes
 3/4 libxl: have NUMA placement deal with cpupools
 4/4 Some automatic NUMA placement documentation

All the patches but 1/4 one have been acked at least once at this point.

The biggest news about this version is the rework of the placement compaison
function (in patch 2/4), as discussed during review of v6. In fact, it now
looks both simpler and clearer than before (and does no longer need any
floating point arithmetic).  For that reason, I'm including 1/4, which is a
de-facto rrevert of 7b0dc7f3ddfe ("libxl: explicitly check for libmath in
autoconf") as asking for libm to be present and linking with it is no longer
necessary.

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)