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yaml
---
r: 100452
b: refs/heads/master
c: 750ed1a
h: refs/heads/master
v: v3
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Ingo Molnar authored and Thomas Gleixner committed May 23, 2008
1 parent b52ceb4 commit 6334434
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Showing 8 changed files with 17 additions and 15 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: 4bf39a9411a4ce8712954e03a9bd1592ee345919
refs/heads/master: 750ed1a40783432d0dcb0e6c2e813a12615d7664
4 changes: 2 additions & 2 deletions trunk/kernel/trace/ftrace.c
Original file line number Diff line number Diff line change
Expand Up @@ -531,7 +531,7 @@ static int notrace __ftrace_update_code(void *ignore)
save_ftrace_enabled = ftrace_enabled;
ftrace_enabled = 0;

start = now(raw_smp_processor_id());
start = ftrace_now(raw_smp_processor_id());
ftrace_update_cnt = 0;

/* No locks needed, the machine is stopped! */
Expand All @@ -550,7 +550,7 @@ static int notrace __ftrace_update_code(void *ignore)

}

stop = now(raw_smp_processor_id());
stop = ftrace_now(raw_smp_processor_id());
ftrace_update_time = stop - start;
ftrace_update_tot_cnt += ftrace_update_cnt;

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7 changes: 6 additions & 1 deletion trunk/kernel/trace/trace.c
Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,11 @@ ns2usecs(cycle_t nsec)
return nsec;
}

notrace cycle_t ftrace_now(int cpu)
{
return cpu_clock(cpu);
}

static atomic_t tracer_counter;
static struct trace_array global_trace;

Expand Down Expand Up @@ -607,7 +612,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags)
entry->idx = atomic_inc_return(&tracer_counter);
entry->preempt_count = pc & 0xff;
entry->pid = tsk->pid;
entry->t = now(raw_smp_processor_id());
entry->t = ftrace_now(raw_smp_processor_id());
entry->flags = (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) |
((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
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5 changes: 1 addition & 4 deletions trunk/kernel/trace/trace.h
Original file line number Diff line number Diff line change
Expand Up @@ -171,10 +171,7 @@ void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
void update_max_tr_single(struct trace_array *tr,
struct task_struct *tsk, int cpu);

static inline notrace cycle_t now(int cpu)
{
return cpu_clock(cpu);
}
extern notrace cycle_t ftrace_now(int cpu);

#ifdef CONFIG_SCHED_TRACER
extern void notrace
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2 changes: 1 addition & 1 deletion trunk/kernel/trace/trace_functions.c
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ static notrace void function_reset(struct trace_array *tr)
{
int cpu;

tr->time_start = now(tr->cpu);
tr->time_start = ftrace_now(tr->cpu);

for_each_online_cpu(cpu)
tracing_reset(tr->data[cpu]);
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6 changes: 3 additions & 3 deletions trunk/kernel/trace/trace_irqsoff.c
Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,7 @@ check_critical_timing(struct trace_array *tr,
* as long as possible:
*/
T0 = data->preempt_timestamp;
T1 = now(cpu);
T1 = ftrace_now(cpu);
delta = T1-T0;

local_save_flags(flags);
Expand Down Expand Up @@ -186,7 +186,7 @@ check_critical_timing(struct trace_array *tr,

out:
data->critical_sequence = max_sequence;
data->preempt_timestamp = now(cpu);
data->preempt_timestamp = ftrace_now(cpu);
tracing_reset(data);
ftrace(tr, data, CALLER_ADDR0, parent_ip, flags);
}
Expand Down Expand Up @@ -215,7 +215,7 @@ start_critical_timing(unsigned long ip, unsigned long parent_ip)
atomic_inc(&data->disabled);

data->critical_sequence = max_sequence;
data->preempt_timestamp = now(cpu);
data->preempt_timestamp = ftrace_now(cpu);
data->critical_start = parent_ip ? : ip;
tracing_reset(data);

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2 changes: 1 addition & 1 deletion trunk/kernel/trace/trace_sched_switch.c
Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ static notrace void sched_switch_reset(struct trace_array *tr)
{
int cpu;

tr->time_start = now(tr->cpu);
tr->time_start = ftrace_now(tr->cpu);

for_each_online_cpu(cpu)
tracing_reset(tr->data[cpu]);
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4 changes: 2 additions & 2 deletions trunk/kernel/trace/trace_sched_wakeup.c
Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,7 @@ wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
* as long as possible:
*/
T0 = data->preempt_timestamp;
T1 = now(cpu);
T1 = ftrace_now(cpu);
delta = T1-T0;

if (!report_latency(delta))
Expand Down Expand Up @@ -191,7 +191,7 @@ wakeup_check_start(struct trace_array *tr, struct task_struct *p,

local_save_flags(flags);

tr->data[wakeup_cpu]->preempt_timestamp = now(cpu);
tr->data[wakeup_cpu]->preempt_timestamp = ftrace_now(cpu);
ftrace(tr, tr->data[wakeup_cpu], CALLER_ADDR1, CALLER_ADDR2, flags);

out_locked:
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