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| author |   Muchun Song <songmuchun@bytedance.com> | 2020-07-16 15:04:57 +0800 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2020-07-22 10:22:04 +0200 |
| commit | 589343569d7b58a64ec2446e6686c8e79aea7fcf (patch) | |
| tree | 9315aba02d65fa567e540488cc2973dd8d06e66b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | sched/fair: update_pick_idlest() Select group with lowest group_util when idle_cpus are equal (diff) | |
| download | wireguard-linux-589343569d7b58a64ec2446e6686c8e79aea7fcf.tar.xz wireguard-linux-589343569d7b58a64ec2446e6686c8e79aea7fcf.zip | |
smp: Fix a potential usage of stale nr_cpus
The get_option() maybe return 0, it means that the nr_cpus is
not initialized. Then we will use the stale nr_cpus to initialize
the nr_cpu_ids. So fix it.
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200716070457.53255-1-songmuchun@bytedance.com
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