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(parent: 3edecfe) | patch
smp: Fix a potential usage of stale nr_cpus
authorMuchun Song <songmuchun@bytedance.com>
Thu, 16 Jul 2020 07:04:57 +0000 (15:04 +0800)
committerPeter Zijlstra <peterz@infradead.org>
Wed, 22 Jul 2020 08:22:04 +0000 (10:22 +0200)
commit589343569d7b58a64ec2446e6686c8e79aea7fcf
tree9315aba02d65fa567e540488cc2973dd8d06e66btree | snapshot
parent3edecfef028536cb19a120ec8788bd8a11f93b9ecommit | diff
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
kernel/smp.c diff | blob | history
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