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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-12-17 23:47:30 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-02-09 01:09:45 +1100 |
| commit | 032b7f08932c9b212952d6d585e45b2941b3e8be (patch) | |
| tree | b177ec1a30b3623584c124d6957b580afe663ee6 /tools/perf/scripts/python | |
| parent | powerpc/64s/radix: occasionally attempt to trim mm_cpumask (diff) | |
| download | linux-032b7f08932c9b212952d6d585e45b2941b3e8be.tar.gz linux-032b7f08932c9b212952d6d585e45b2941b3e8be.zip | |
powerpc/64s/radix: serialize_against_pte_lookup IPIs trim mm_cpumask
serialize_against_pte_lookup() performs IPIs to all CPUs in mm_cpumask.
Take this opportunity to try trim the CPU out of mm_cpumask. This can
reduce the cost of future serialize_against_pte_lookup() and/or the
cost of future TLB flushes.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201217134731.488135-7-npiggin@gmail.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions