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>

diff --git a/init/calibrate.c b/init/calibrate.c
index a379c9061199c64368936a88f91353992a4d5f92..6eb48e53d61c58869bdc8aa5250397a2594ab0e3 100644 (file)
--- 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 --cc kernel/cpu.c
Simple merge