From: Nishanth Aravamudan Date: Sat, 18 Oct 2014 00:50:40 +0000 (-0700) Subject: powerpc/numa: ensure per-cpu NUMA mappings are correct on topology update X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~43^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c0a33f9861d38631245f7ef434ecad3413324fb;p=pandora-kernel.git powerpc/numa: ensure per-cpu NUMA mappings are correct on topology update We received a report of warning in kernel/sched/core.c where the sched group was NULL on an LPAR after a topology update. This seems to occur because after the topology update has moved the CPUs, cpu_to_node is returning the old value still, which ends up breaking the consistency of the NUMA topology in the per-cpu maps. Ensure that we update the per-cpu fields when we re-map CPUs. Signed-off-by: Nishanth Aravamudan Signed-off-by: Michael Ellerman --- Reading git-diff-tree failed