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authorMike Travis <travis@sgi.com>2009-11-18 03:22:13 +0300
committerIngo Molnar <mingo@elte.hu>2009-11-26 12:18:42 +0300
commitfeae3203d711db0a9965300ee6d592257fdaae4f (patch)
tree747f1223ed4afb9dbb4c79ceff1d06cb4da61984
parentba5ea951d0b5e5896180e21fe07f228d2b3b0e63 (diff)
downloadlinux-feae3203d711db0a9965300ee6d592257fdaae4f.tar.xz
timers, init: Limit the number of per cpu calibration bootup messages
Limit the number of per cpu calibration messages by only printing out results for the first cpu to boot. Also, don't print "CPUx is down" as this is expected, and we don't need 4096 reminders... ;-) Signed-off-by: Mike Travis <travis@sgi.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Tejun Heo <tj@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091118002219.889552000@alcatraz.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--init/calibrate.c24
-rw-r--r--kernel/cpu.c5
2 files changed, 17 insertions, 12 deletions
diff --git a/init/calibrate.c b/init/calibrate.c
index a379c9061199..6eb48e53d61c 100644
--- a/init/calibrate.c
+++ b/init/calibrate.c
@@ -123,23 +123,26 @@ void __cpuinit calibrate_delay(void)
{
unsigned long ticks, loopbit;
int lps_precision = LPS_PREC;
+ static bool printed;
if (preset_lpj) {
loops_per_jiffy = preset_lpj;
- printk(KERN_INFO
- "Calibrating delay loop (skipped) preset value.. ");
- } else if ((smp_processor_id() == 0) && lpj_fine) {
+ if (!printed)
+ pr_info("Calibrating delay loop (skipped) "
+ "preset value.. ");
+ } else if ((!printed) && lpj_fine) {
loops_per_jiffy = lpj_fine;
- printk(KERN_INFO
- "Calibrating delay loop (skipped), "
+ pr_info("Calibrating delay loop (skipped), "
"value calculated using timer frequency.. ");
} else if ((loops_per_jiffy = calibrate_delay_direct()) != 0) {
- printk(KERN_INFO
- "Calibrating delay using timer specific routine.. ");
+ if (!printed)
+ pr_info("Calibrating delay using timer "
+ "specific routine.. ");
} else {
loops_per_jiffy = (1<<12);
- printk(KERN_INFO "Calibrating delay loop... ");
+ if (!printed)
+ pr_info("Calibrating delay loop... ");
while ((loops_per_jiffy <<= 1) != 0) {
/* wait for "start of" clock tick */
ticks = jiffies;
@@ -170,7 +173,10 @@ void __cpuinit calibrate_delay(void)
loops_per_jiffy &= ~loopbit;
}
}
- printk(KERN_CONT "%lu.%02lu BogoMIPS (lpj=%lu)\n",
+ if (!printed)
+ pr_cont("%lu.%02lu BogoMIPS (lpj=%lu)\n",
loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ)) % 100, loops_per_jiffy);
+
+ printed = true;
}
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 6ba0f1ecb212..7c4e2713df0a 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -392,10 +392,9 @@ int disable_nonboot_cpus(void)
if (cpu == first_cpu)
continue;
error = _cpu_down(cpu, 1);
- if (!error) {
+ if (!error)
cpumask_set_cpu(cpu, frozen_cpus);
- printk("CPU%d is down\n", cpu);
- } else {
+ else {
printk(KERN_ERR "Error taking CPU%d down: %d\n",
cpu, error);
break;