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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-12-04 09:48:59 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-02-20 16:10:19 -0800 |
| commit | 3016611eedaff3e75feba54392c105db214a4f52 (patch) | |
| tree | a1e1a010b3115651ea252fdacac732ee8de0ed7f /kernel/rcu | |
| parent | a7c8655b073d89303911c89d0fd9fc4be7631fbe (diff) | |
| download | linux-3016611eedaff3e75feba54392c105db214a4f52.tar.bz2 | |
rcu: Fix CPU offload boot message when no CPUs are offloaded
In CONFIG_RCU_NOCB_CPU=y kernels, if the boot parameters indicate that
none of the CPUs should in fact be offloaded, the following somewhat
obtuse message appears:
Offload RCU callbacks from CPUs: .
This commit therefore makes the message at least grammatically correct
in this case:
Offload RCU callbacks from CPUs: (none)
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index fb88a028deec..93f5649ffd2b 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -2312,8 +2312,11 @@ void __init rcu_init_nohz(void) cpumask_and(rcu_nocb_mask, cpu_possible_mask, rcu_nocb_mask); } - pr_info("\tOffload RCU callbacks from CPUs: %*pbl.\n", - cpumask_pr_args(rcu_nocb_mask)); + if (cpumask_empty(rcu_nocb_mask)) + pr_info("\tOffload RCU callbacks from CPUs: (none).\n"); + else + pr_info("\tOffload RCU callbacks from CPUs: %*pbl.\n", + cpumask_pr_args(rcu_nocb_mask)); if (rcu_nocb_poll) pr_info("\tPoll for callbacks from no-CBs CPUs.\n"); |