[patch 47/55] hangcheck-timer: Use ktime_get_raw_ns()

[Thomas Gleixner <tglx@linutronix.de>]

[-- Attachment #1: hangcheck-timer-get-rid-of-cruft.patch --]
[-- Type: text/plain, Size: 1524 bytes --]

Use the nanoseconds based interface instead of converting timespecs.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/hangcheck-timer.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

Index: tip/drivers/char/hangcheck-timer.c
===================================================================
--- tip.orig/drivers/char/hangcheck-timer.c
+++ tip/drivers/char/hangcheck-timer.c
@@ -49,7 +49,7 @@
 #include <asm/uaccess.h>
 #include <linux/sysrq.h>
 #include <linux/timer.h>
-#include <linux/time.h>
+#include <linux/hrtimer.h>
 
 #define VERSION_STR "0.9.1"
 
@@ -129,9 +129,7 @@ extern unsigned long long monotonic_cloc
 #else
 static inline unsigned long long monotonic_clock(void)
 {
-	struct timespec ts;
-	getrawmonotonic(&ts);
-	return timespec_to_ns(&ts);
+	return ktime_get_raw_ns();
 }
 #endif  /* HAVE_MONOTONIC */
 
@@ -186,9 +184,9 @@ static int __init hangcheck_init(void)
 	printk("Hangcheck: starting hangcheck timer %s (tick is %d seconds, margin is %d seconds).\n",
 	       VERSION_STR, hangcheck_tick, hangcheck_margin);
 #if defined (HAVE_MONOTONIC)
-	printk("Hangcheck: Using monotonic_clock().\n");
+	printk("Hangcheck: Using monotonic clock\n");
 #else
-	printk("Hangcheck: Using getrawmonotonic().\n");
+	printk("Hangcheck: Using raw monotonic clock.\n");
 #endif  /* HAVE_MONOTONIC */
 	hangcheck_tsc_margin =
 		(unsigned long long)(hangcheck_margin + hangcheck_tick);