Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 210313
b: refs/heads/master
c: 7b598cd
h: refs/heads/master
i:
  210311: b3f9ef1
v: v3
  • Loading branch information
Michael Cree authored and Matt Turner committed Sep 1, 2010
1 parent c945d46 commit bcacdc5
Show file tree
Hide file tree
Showing 2 changed files with 10 additions and 10 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 59b25ed91400ace98d6cf0d59b1cb6928ad5cd37
refs/heads/master: 7b598cdd03e35a4361f4ff7ebc630aa508c35be6
18 changes: 9 additions & 9 deletions trunk/arch/alpha/kernel/perf_event.c
Original file line number Diff line number Diff line change
Expand Up @@ -241,20 +241,20 @@ static inline unsigned long alpha_read_pmc(int idx)
static int alpha_perf_event_set_period(struct perf_event *event,
struct hw_perf_event *hwc, int idx)
{
long left = atomic64_read(&hwc->period_left);
long left = local64_read(&hwc->period_left);
long period = hwc->sample_period;
int ret = 0;

if (unlikely(left <= -period)) {
left = period;
atomic64_set(&hwc->period_left, left);
local64_set(&hwc->period_left, left);
hwc->last_period = period;
ret = 1;
}

if (unlikely(left <= 0)) {
left += period;
atomic64_set(&hwc->period_left, left);
local64_set(&hwc->period_left, left);
hwc->last_period = period;
ret = 1;
}
Expand All @@ -269,7 +269,7 @@ static int alpha_perf_event_set_period(struct perf_event *event,
if (left > (long)alpha_pmu->pmc_max_period[idx])
left = alpha_pmu->pmc_max_period[idx];

atomic64_set(&hwc->prev_count, (unsigned long)(-left));
local64_set(&hwc->prev_count, (unsigned long)(-left));

alpha_write_pmc(idx, (unsigned long)(-left));

Expand Down Expand Up @@ -300,10 +300,10 @@ static unsigned long alpha_perf_event_update(struct perf_event *event,
long delta;

again:
prev_raw_count = atomic64_read(&hwc->prev_count);
prev_raw_count = local64_read(&hwc->prev_count);
new_raw_count = alpha_read_pmc(idx);

if (atomic64_cmpxchg(&hwc->prev_count, prev_raw_count,
if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
new_raw_count) != prev_raw_count)
goto again;

Expand All @@ -316,8 +316,8 @@ static unsigned long alpha_perf_event_update(struct perf_event *event,
delta += alpha_pmu->pmc_max_period[idx] + 1;
}

atomic64_add(delta, &event->count);
atomic64_sub(delta, &hwc->period_left);
local64_add(delta, &event->count);
local64_sub(delta, &hwc->period_left);

return new_raw_count;
}
Expand Down Expand Up @@ -636,7 +636,7 @@ static int __hw_perf_event_init(struct perf_event *event)
if (!hwc->sample_period) {
hwc->sample_period = alpha_pmu->pmc_max_period[0];
hwc->last_period = hwc->sample_period;
atomic64_set(&hwc->period_left, hwc->sample_period);
local64_set(&hwc->period_left, hwc->sample_period);
}

return 0;
Expand Down

0 comments on commit bcacdc5

Please sign in to comment.