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authorFrederic Weisbecker <fweisbec@gmail.com>2012-10-11 17:52:56 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2012-11-17 19:30:18 +0100
commit33a5f6261a61af28f7b4c86f9f958da0f206c914 (patch)
treea589cb7929bf8fcc365d37b3c746d369b50d377b /kernel/time
parent6147a9d8070e1c9d16d57eb53a14942b95b28dc4 (diff)
downloadlinux-33a5f6261a61af28f7b4c86f9f958da0f206c914.tar.bz2
nohz: Add API to check tick state
We need some quick way to check if the CPU has stopped its tick. This will be useful to implement the printk tick using the irq work subsystem. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/tick-sched.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index a40260885265..9e945aa090ac 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -28,7 +28,7 @@
/*
* Per cpu nohz control structure
*/
-static DEFINE_PER_CPU(struct tick_sched, tick_cpu_sched);
+DEFINE_PER_CPU(struct tick_sched, tick_cpu_sched);
/*
* The time, when the last jiffy update happened. Protected by xtime_lock.