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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2012-10-11 17:52:56 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-17 19:30:18 +0100 |
| commit | 33a5f6261a61af28f7b4c86f9f958da0f206c914 (patch) | |
| tree | a589cb7929bf8fcc365d37b3c746d369b50d377b /kernel/time | |
| parent | irq_work: Remove CONFIG_HAVE_IRQ_WORK (diff) | |
| download | linux-33a5f6261a61af28f7b4c86f9f958da0f206c914.tar.xz linux-33a5f6261a61af28f7b4c86f9f958da0f206c914.zip | |
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.c | 2 |
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. |