This is a note to let you know that I've just added the patch titled
tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz()
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tick-sched-check-tick_nohz_enabled-in-tick_nohz_switch_to_nohz.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 27630532ef5ead28b98cfe28d8f95222ef91c2b7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Date: Tue, 15 Apr 2014 10:54:41 +0530
Subject: tick-sched: Check tick_nohz_enabled in tick_nohz_switch_to_nohz()
From: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
commit 27630532ef5ead28b98cfe28d8f95222ef91c2b7 upstream.
Since commit d689fe222 (NOHZ: Check for nohz active instead of nohz
enabled) the tick_nohz_switch_to_nohz() function returns because it
checks for the tick_nohz_active flag. This can't be set, because the
function itself sets it.
Undo the change in tick_nohz_switch_to_nohz().
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Cc: linaro-kernel@xxxxxxxxxxxxxxxx
Cc: fweisbec@xxxxxxxxx
Cc: Arvind.Chauhan@xxxxxxx
Cc: linaro-networking@xxxxxxxxxx
Link: http://lkml.kernel.org/r/40939c05f2d65d781b92b20302b02243d0654224.1397537987.git.viresh.kumar@xxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
kernel/time/tick-sched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -970,7 +970,7 @@ static void tick_nohz_switch_to_nohz(voi
struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
ktime_t next;
- if (!tick_nohz_active)
+ if (!tick_nohz_enabled)
return;
local_irq_disable();
Patches currently in stable-queue which might be from viresh.kumar@xxxxxxxxxx are
queue-3.14/tick-common-fix-wrong-check-in-tick_check_replacement.patch
queue-3.14/tick-sched-check-tick_nohz_enabled-in-tick_nohz_switch_to_nohz.patch
queue-3.14/tick-sched-don-t-call-update_wall_time-when-delta-is-lesser-than-tick_period.patch
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