0113-fix-initcall-timestamps.patch

From 2d08a233a1dd6eef3979f6d09b03cfcb66db7b0e 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 113/126] 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 7da935ad2d12..d1ba883d3382 100644
--- a/init/main.c
+++ b/init/main.c
@@ -795,16 +795,16 @@ __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);
 
-- 
2.15.0