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| author | Nathan Lynch <nathanl@linux.ibm.com> | 2019-04-18 13:56:57 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 12:23:58 +0200 |
| commit | 9d4961a415ed8f79ae7c73ad951a3a311fa0bd2d (patch) | |
| tree | 4858296a28240be50368d7d9c0272bfc528dd214 /kernel/sched/core.c | |
| parent | 82077215ed253ede17a84608289317f6b0ab8022 (diff) | |
powerpc/numa: improve control of topology updates
[ Upstream commit 2d4d9b308f8f8dec68f6dbbff18c68ec7c6bd26f ]
When booted with "topology_updates=no", or when "off" is written to
/proc/powerpc/topology_updates, NUMA reassignments are inhibited for
PRRN and VPHN events. However, migration and suspend unconditionally
re-enable reassignments via start_topology_update(). This is
incoherent.
Check the topology_updates_enabled flag in
start/stop_topology_update() so that callers of those APIs need not be
aware of whether reassignments are enabled. This allows the
administrative decision on reassignments to remain in force across
migrations and suspensions.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/sched/core.c')
0 files changed, 0 insertions, 0 deletions