printk and friends can now formap 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.
This patch is dependent on the following two patches.
lib/vsprintf: implement bitmap printing through '%*pb[l]'
cpumask, nodemask: implement cpumask/nodemask_pr_args()
Please wait till the forementioned patches are merged to mainline
before applying to subsystem trees.
Signed-off-by: Tejun Heo <t...@kernel.org>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Thomas Gleixner <t...@linutronix.de>
---
kernel/time/tick-sched.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 1363d58..a4c4eda 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -326,13 +326,6 @@ static int tick_nohz_cpu_down_callback(struct
notifier_block *nfb,
return NOTIFY_OK;
}
-/*
- * Worst case string length in chunks of CPU range seems 2 steps
- * separations: 0,2,4,6,...
- * This is NR_CPUS + sizeof('\0')
- */
-static char __initdata nohz_full_buf[NR_CPUS + 1];
-
static int tick_nohz_init_all(void)
{
int err = -1;
@@ -393,8 +386,8 @@ void __init tick_nohz_init(void)
context_tracking_cpu_set(cpu);
cpu_notifier(tick_nohz_cpu_down_callback, 0);
- cpulist_scnprintf(nohz_full_buf, sizeof(nohz_full_buf),
tick_nohz_full_mask);
- pr_info("NO_HZ: Full dynticks CPUs: %s.\n", nohz_full_buf);
+ pr_info("NO_HZ: Full dynticks CPUs: %*pbl.\n",
+ cpumask_pr_args(tick_nohz_full_mask));
}
#endif
--
2.1.0
--
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