Commit ad853b48 authored by Tejun Heo's avatar Tejun Heo Committed by Linus Torvalds
Browse files

rcu: use %*pb[l] to print bitmaps including cpumasks and nodemasks

printk and friends can now format bitmaps using '%*pb[l]'.  cpumask
and nodemask also provide cpumask_pr_args() and nodemask_pr_args()
respectively which can be used to generate the two printf arguments
necessary to format the specified cpu/nodemask.
Signed-off-by: default avatarTejun Heo <>
Cc: "Paul E. McKenney" <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent e8e6d97c
......@@ -49,7 +49,6 @@ DEFINE_PER_CPU(char, rcu_cpu_has_work);
static cpumask_var_t rcu_nocb_mask; /* CPUs to have callbacks offloaded. */
static bool have_rcu_nocb_mask; /* Was rcu_nocb_mask allocated? */
static bool __read_mostly rcu_nocb_poll; /* Offload kthread are to poll. */
static char __initdata nocb_buf[NR_CPUS * 5];
#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
......@@ -2386,8 +2385,8 @@ void __init rcu_init_nohz(void)
cpumask_and(rcu_nocb_mask, cpu_possible_mask,
cpulist_scnprintf(nocb_buf, sizeof(nocb_buf), rcu_nocb_mask);
pr_info("\tOffload RCU callbacks from CPUs: %s.\n", nocb_buf);
pr_info("\tOffload RCU callbacks from CPUs: %*pbl.\n",
if (rcu_nocb_poll)
pr_info("\tPoll for callbacks from no-CBs CPUs.\n");
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