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Message-ID: <20110127150006.23248.71790.stgit@localhost>
Date: Thu, 27 Jan 2011 16:00:06 +0100
From: Torben Hohn <torbenh@....de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Sam Creasey <sammy@...my.net>,
Peter Zijlstra <peterz@...radead.org>, johnstul@...ibm.com,
Roman Zippel <zippel@...ux-m68k.org>, hch@...radead.org,
yong.zhang0@...il.com, Geert Uytterhoeven <geert@...ux-m68k.org>,
Greg Ungerer <gerg@...inux.org>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH v2 15/20] m68k: switch do_timer() to xtime_update()
xtime_update() properly takes the xtime_lock
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Roman Zippel <zippel@...ux-m68k.org>
Cc: Sam Creasey <sammy@...my.net>
Cc: Greg Ungerer <gerg@...inux.org>
Signed-off-by: Torben Hohn <torbenh@....de>
---
arch/m68k/bvme6000/config.c | 4 ++--
arch/m68k/kernel/time.c | 4 ++--
arch/m68k/mvme147/config.c | 4 ++--
arch/m68k/mvme16x/config.c | 4 ++--
arch/m68k/sun3/sun3ints.c | 2 +-
arch/m68knommu/kernel/time.c | 8 ++------
6 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c
index 9fe6fef..1edd950 100644
--- a/arch/m68k/bvme6000/config.c
+++ b/arch/m68k/bvme6000/config.c
@@ -45,8 +45,8 @@ extern int bvme6000_set_clock_mmss (unsigned long);
extern void bvme6000_reset (void);
void bvme6000_set_vectors (void);
-/* Save tick handler routine pointer, will point to do_timer() in
- * kernel/sched.c, called via bvme6000_process_int() */
+/* Save tick handler routine pointer, will point to xtime_update() in
+ * kernel/timer/timekeeping.c, called via bvme6000_process_int() */
static irq_handler_t tick_handler;
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 06438da..18b34ee 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -37,11 +37,11 @@ static inline int set_rtc_mmss(unsigned long nowtime)
/*
* timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
+ * as well as call the "xtime_update()" routine every clocktick
*/
static irqreturn_t timer_interrupt(int irq, void *dummy)
{
- do_timer(1);
+ xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
profile_tick(CPU_PROFILING);
diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c
index 100baaa..6cb9c3a 100644
--- a/arch/m68k/mvme147/config.c
+++ b/arch/m68k/mvme147/config.c
@@ -46,8 +46,8 @@ extern void mvme147_reset (void);
static int bcd2int (unsigned char b);
-/* Save tick handler routine pointer, will point to do_timer() in
- * kernel/sched.c, called via mvme147_process_int() */
+/* Save tick handler routine pointer, will point to xtime_update() in
+ * kernel/time/timekeeping.c, called via mvme147_process_int() */
irq_handler_t tick_handler;
diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c
index 11edf61..0b28e26 100644
--- a/arch/m68k/mvme16x/config.c
+++ b/arch/m68k/mvme16x/config.c
@@ -51,8 +51,8 @@ extern void mvme16x_reset (void);
int bcd2int (unsigned char b);
-/* Save tick handler routine pointer, will point to do_timer() in
- * kernel/sched.c, called via mvme16x_process_int() */
+/* Save tick handler routine pointer, will point to xtime_update() in
+ * kernel/time/timekeeping.c, called via mvme16x_process_int() */
static irq_handler_t tick_handler;
diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c
index 2d9e21b..6464ad3 100644
--- a/arch/m68k/sun3/sun3ints.c
+++ b/arch/m68k/sun3/sun3ints.c
@@ -66,7 +66,7 @@ static irqreturn_t sun3_int5(int irq, void *dev_id)
#ifdef CONFIG_SUN3
intersil_clear();
#endif
- do_timer(1);
+ xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
if (!(kstat_cpu(0).irqs[irq] % 20))
sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 160) / 20]);
diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c
index d6ac2a4..6623909 100644
--- a/arch/m68knommu/kernel/time.c
+++ b/arch/m68knommu/kernel/time.c
@@ -36,7 +36,7 @@ static inline int set_rtc_mmss(unsigned long nowtime)
#ifndef CONFIG_GENERIC_CLOCKEVENTS
/*
* timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
+ * as well as call the "xtime_update()" routine every clocktick
*/
irqreturn_t arch_timer_interrupt(int irq, void *dummy)
{
@@ -44,11 +44,7 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy)
if (current->pid)
profile_tick(CPU_PROFILING);
- write_seqlock(&xtime_lock);
-
- do_timer(1);
-
- write_sequnlock(&xtime_lock);
+ xtime_update(1);
update_process_times(user_mode(get_irq_regs()));
--
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