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Diffstat (limited to 'arch/x86/kernel/tsc_sync.c')
-rw-r--r--arch/x86/kernel/tsc_sync.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index f379309..eed1568 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -114,13 +114,12 @@ void __cpuinit check_tsc_sync_source(int cpu)
return;
if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE)) {
- printk_once(KERN_INFO "Skipping synchronization checks as TSC is reliable.\n");
+ if (cpu == (nr_cpu_ids-1) || system_state != SYSTEM_BOOTING)
+ pr_info(
+ "Skipped synchronization checks as TSC is reliable.\n");
return;
}
- pr_info("checking TSC synchronization [CPU#%d -> CPU#%d]:",
- smp_processor_id(), cpu);
-
/*
* Reset it - in case this is a second bootup:
*/
@@ -142,12 +141,14 @@ void __cpuinit check_tsc_sync_source(int cpu)
cpu_relax();
if (nr_warps) {
- printk("\n");
+ pr_warning("TSC synchronization [CPU#%d -> CPU#%d]:\n",
+ smp_processor_id(), cpu);
pr_warning("Measured %Ld cycles TSC warp between CPUs, "
"turning off TSC clock.\n", max_warp);
mark_tsc_unstable("check_tsc_sync_source failed");
} else {
- printk(" passed.\n");
+ pr_debug("TSC synchronization [CPU#%d -> CPU#%d]: passed\n",
+ smp_processor_id(), cpu);
}
/*
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