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| author |   Nishanth Aravamudan <nacc@linux.vnet.ibm.com> | 2014-10-17 17:50:40 -0700 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2014-10-29 09:41:22 +1100 |
| commit | 2c0a33f9861d38631245f7ef434ecad3413324fb (patch) | |
| tree | 3b5c5dbdd37bbd2b3ee8d1df44ce204f422a7aca /arch/arm64/Kconfig | |
| parent | powerpc/numa: use cached value of update->cpu in update_cpu_topology (diff) | |
| download | wireguard-linux-2c0a33f9861d38631245f7ef434ecad3413324fb.tar.xz wireguard-linux-2c0a33f9861d38631245f7ef434ecad3413324fb.zip | |
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 <nacc@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/arm64/Kconfig')
0 files changed, 0 insertions, 0 deletions