lkml.org 
[lkml]   [2014]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:timers/core] tick: Fixup more fallout from hrtimer broadcast mode
Commit-ID:  849401b66d305f3feb75b6db7459b95ad190552a
Gitweb: http://git.kernel.org/tip/849401b66d305f3feb75b6db7459b95ad190552a
Author: Preeti U Murthy <preeti@linux.vnet.ibm.com>
AuthorDate: Sun, 9 Feb 2014 11:32:22 +0530
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 9 Feb 2014 15:11:47 +0100

tick: Fixup more fallout from hrtimer broadcast mode

The hrtimer mode of broadcast is supported only when
GENERIC_CLOCKEVENTS_BROADCAST and TICK_ONESHOT config options
are enabled. Hence compile in the functions for hrtimer mode
of broadcast only when these options are selected.
Also fix max_delta_ticks value for the pseudo clock device.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/52F719EE.9010304@linux.vnet.ibm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/clockchips.h | 1 +
kernel/time/Makefile | 5 ++++-
kernel/time/tick-broadcast-hrtimer.c | 2 +-
3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 20a7183..2e4cb67 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -207,6 +207,7 @@ static inline void clockevents_resume(void) {}

static inline int clockevents_notify(unsigned long reason, void *arg) { return 0; }
static inline int tick_check_broadcast_expired(void) { return 0; }
+static inline void tick_setup_hrtimer_broadcast(void) {};

#endif

diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index 06151ef..57a413f 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -3,7 +3,10 @@ obj-y += timeconv.o posix-clock.o alarmtimer.o

obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD) += clockevents.o
obj-$(CONFIG_GENERIC_CLOCKEVENTS) += tick-common.o
-obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += tick-broadcast.o tick-broadcast-hrtimer.o
+ifeq ($(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST),y)
+ obj-y += tick-broadcast.o
+ obj-$(CONFIG_TICK_ONESHOT) += tick-broadcast-hrtimer.o
+endif
obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o
obj-$(CONFIG_TICK_ONESHOT) += tick-sched.o
diff --git a/kernel/time/tick-broadcast-hrtimer.c b/kernel/time/tick-broadcast-hrtimer.c
index 9242527..eb682d5 100644
--- a/kernel/time/tick-broadcast-hrtimer.c
+++ b/kernel/time/tick-broadcast-hrtimer.c
@@ -82,7 +82,7 @@ static struct clock_event_device ce_broadcast_hrtimer = {
.min_delta_ns = 1,
.max_delta_ns = KTIME_MAX,
.min_delta_ticks = 1,
- .max_delta_ticks = KTIME_MAX,
+ .max_delta_ticks = ULONG_MAX,
.mult = 1,
.shift = 0,
.cpumask = cpu_all_mask,

\
 
 \ /
  Last update: 2014-02-09 15:41    [W:0.040 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site