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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /kernel/time/tick-common.c
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'kernel/time/tick-common.c')
-rw-r--r--kernel/time/tick-common.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index b6b898d2eeef..119528de8235 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -18,7 +18,6 @@
18#include <linux/percpu.h> 18#include <linux/percpu.h>
19#include <linux/profile.h> 19#include <linux/profile.h>
20#include <linux/sched.h> 20#include <linux/sched.h>
21#include <linux/tick.h>
22 21
23#include <asm/irq_regs.h> 22#include <asm/irq_regs.h>
24 23
@@ -49,9 +48,13 @@ struct tick_device *tick_get_device(int cpu)
49 */ 48 */
50int tick_is_oneshot_available(void) 49int tick_is_oneshot_available(void)
51{ 50{
52 struct clock_event_device *dev = __get_cpu_var(tick_cpu_device).evtdev; 51 struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev);
53 52
54 return dev && (dev->features & CLOCK_EVT_FEAT_ONESHOT); 53 if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT))
54 return 0;
55 if (!(dev->features & CLOCK_EVT_FEAT_C3STOP))
56 return 1;
57 return tick_broadcast_oneshot_available();
55} 58}
56 59
57/* 60/*