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ftrace: make work with new ring buffer

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This patch ports ftrace over to the new ring buffer.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2008-09-29 23:02:41 -04:00 • committed by Ingo Molnar
parent ed56829cb3
commit 3928a8a2d9
11 changed files with 292 additions and 802 deletions
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40
kernel/trace/trace_mmiotrace.c
View file

@ -27,7 +27,7 @@ static void mmio_reset_data(struct trace_array *tr)
tr->time_start = ftrace_now(tr->cpu);
for_each_online_cpu(cpu)
tracing_reset(tr->data[cpu]);
tracing_reset(tr, cpu);
}
static void mmio_trace_init(struct trace_array *tr)
@ -130,10 +130,14 @@ static unsigned long count_overruns(struct trace_iterator *iter)
{
int cpu;
unsigned long cnt = 0;
/* FIXME: */
#if 0
for_each_online_cpu(cpu) {
cnt += iter->overrun[cpu];
iter->overrun[cpu] = 0;
}
#endif
(void)cpu;
return cnt;
}
@ -176,7 +180,7 @@ static int mmio_print_rw(struct trace_iterator *iter)
struct trace_entry *entry = iter->ent;
struct mmiotrace_rw *rw = &entry->field.mmiorw;
struct trace_seq *s = &iter->seq;
unsigned long long t = ns2usecs(entry->field.t);
unsigned long long t = ns2usecs(iter->ts);
unsigned long usec_rem = do_div(t, 1000000ULL);
unsigned secs = (unsigned long)t;
int ret = 1;
@ -218,7 +222,7 @@ static int mmio_print_map(struct trace_iterator *iter)
struct trace_entry *entry = iter->ent;
struct mmiotrace_map *m = &entry->field.mmiomap;
struct trace_seq *s = &iter->seq;
unsigned long long t = ns2usecs(entry->field.t);
unsigned long long t = ns2usecs(iter->ts);
unsigned long usec_rem = do_div(t, 1000000ULL);
unsigned secs = (unsigned long)t;
int ret = 1;
@ -250,7 +254,7 @@ static int mmio_print_mark(struct trace_iterator *iter)
struct trace_entry *entry = iter->ent;
const char *msg = entry->field.print.buf;
struct trace_seq *s = &iter->seq;
unsigned long long t = ns2usecs(entry->field.t);
unsigned long long t = ns2usecs(iter->ts);
unsigned long usec_rem = do_div(t, 1000000ULL);
unsigned secs = (unsigned long)t;
int ret;
@ -303,19 +307,19 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
struct trace_array_cpu *data,
struct mmiotrace_rw *rw)
{
struct ring_buffer_event *event;
struct trace_entry *entry;
unsigned long irq_flags;
raw_local_irq_save(irq_flags);
__raw_spin_lock(&data->lock);
entry = tracing_get_trace_entry(tr, data);
event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
&irq_flags);
if (!event)
return;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(entry, 0);
entry->type = TRACE_MMIO_RW;
entry->field.mmiorw = *rw;
__raw_spin_unlock(&data->lock);
raw_local_irq_restore(irq_flags);
ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
trace_wake_up();
}
@ -331,19 +335,19 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
struct trace_array_cpu *data,
struct mmiotrace_map *map)
{
struct ring_buffer_event *event;
struct trace_entry *entry;
unsigned long irq_flags;
raw_local_irq_save(irq_flags);
__raw_spin_lock(&data->lock);
entry = tracing_get_trace_entry(tr, data);
event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry),
&irq_flags);
if (!event)
return;
entry = ring_buffer_event_data(event);
tracing_generic_entry_update(entry, 0);
entry->type = TRACE_MMIO_MAP;
entry->field.mmiomap = *map;
__raw_spin_unlock(&data->lock);
raw_local_irq_restore(irq_flags);
ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
trace_wake_up();
}