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From 5b5ad2c9b9b555d20aeba1f895d0c9d1c2a77776 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Thu, 2 Jun 2016 23:36:32 -0500
Subject: [PATCH 115/124] fix initcall timestamps
Print more finegrained initcall timings
use the tsc instead of the jiffies clock for initcall_debug
---
init/main.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/init/main.c b/init/main.c
index f1d8c3fdbf05..8358cbe6ab13 100644
--- a/init/main.c
+++ b/init/main.c
@@ -747,16 +747,16 @@ __setup("initcall_blacklist=", initcall_blacklist);
static int __init_or_module do_one_initcall_debug(initcall_t fn)
{
- ktime_t calltime, delta, rettime;
+ unsigned long long calltime, delta, rettime;
unsigned long long duration;
int ret;
- printk(KERN_DEBUG "calling %pF @ %i\n", fn, raw_smp_processor_id());
- calltime = ktime_get();
+ printk(KERN_DEBUG "calling %pF @ %i\n", fn, task_pid_nr(current));
+ calltime = local_clock();
ret = fn();
- rettime = ktime_get();
- delta = ktime_sub(rettime, calltime);
- duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+ rettime = local_clock();
+ delta = rettime - calltime;
+ duration = delta >> 10;
printk(KERN_DEBUG "initcall %pF returned %d after %lld usecs\n",
fn, ret, duration);
--
2.11.1
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