Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Tejun Heo <> | Subject | [PATCH 16/32] time: use %*pb[l] to print bitmaps including cpumasks and nodemasks | Date | Sat, 24 Jan 2015 09:03:22 -0500 |
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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 <tj@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@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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