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authorIngo Molnar <mingo@elte.hu>2007-07-21 04:37:36 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-21 17:49:15 -0700
commit820de5c39ef7f6866d2c9e6c7d208bcd2a6e1942 (patch)
treebe28af991bb9fa26ece3ffb44b01c7038aa70fa4 /kernel/hrtimer.c
parent3704540b48295253bd9c87a5e7ff545f9d47a3b8 (diff)
downloadlinux-820de5c39ef7f6866d2c9e6c7d208bcd2a6e1942.tar.bz2
highres: improve debug output
Add some more debug information to the hrtimer and clock events code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/hrtimer.c')
-rw-r--r--kernel/hrtimer.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 72d034258ba1..065a89786628 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -558,7 +558,8 @@ static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer,
*/
static int hrtimer_switch_to_hres(void)
{
- struct hrtimer_cpu_base *base = &__get_cpu_var(hrtimer_bases);
+ int cpu = smp_processor_id();
+ struct hrtimer_cpu_base *base = &per_cpu(hrtimer_bases, cpu);
unsigned long flags;
if (base->hres_active)
@@ -568,6 +569,8 @@ static int hrtimer_switch_to_hres(void)
if (tick_init_highres()) {
local_irq_restore(flags);
+ printk(KERN_WARNING "Could not switch to high resolution "
+ "mode on CPU %d\n", cpu);
return 0;
}
base->hres_active = 1;