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| author | David S. Miller <davem@davemloft.net> | 2018-11-11 17:57:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-11 17:57:54 -0800 |
| commit | 2b9b7502dfcb6169dbf3359702953bf756b4e273 (patch) | |
| tree | 58ab22096d49de6a0e049cf1267edc34b82916dc /kernel/sched/core.c | |
| parent | 9206eb0bc5679d06d2f54b9db86fe2b9a55e07e4 (diff) | |
| parent | ccda4af0f4b92f7b4c308d3acc262f4a7e3affad (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index f12225f26b70..091e089063be 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5851,11 +5851,14 @@ void __init sched_init_smp(void) /* * There's no userspace yet to cause hotplug operations; hence all the * CPU masks are stable and all blatant races in the below code cannot - * happen. + * happen. The hotplug lock is nevertheless taken to satisfy lockdep, + * but there won't be any contention on it. */ + cpus_read_lock(); mutex_lock(&sched_domains_mutex); sched_init_domains(cpu_active_mask); mutex_unlock(&sched_domains_mutex); + cpus_read_unlock(); /* Move init over to a non-isolated CPU */ if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0) |