struct oprofile_cpu_buffer cpu_buffer[NR_CPUS] __cacheline_aligned;
-static void wq_sync_buffer(void *);
+static void wq_sync_buffer(struct work_struct *work);
#define DEFAULT_TIMER_EXPIRE (HZ / 10)
static int work_enabled;
{
int i;
- for_each_online_cpu(i) {
+ for_each_online_cpu(i)
vfree(cpu_buffer[i].buffer);
- }
}
int alloc_cpu_buffers(void)
b->head_pos = 0;
b->sample_received = 0;
b->sample_lost_overflow = 0;
+ b->backtrace_aborted = 0;
+ b->sample_invalid_eip = 0;
b->cpu = i;
- INIT_WORK(&b->work, wq_sync_buffer, b);
+ INIT_DELAYED_WORK(&b->work, wq_sync_buffer);
}
return 0;
cpu_buf->sample_received++;
+ if (pc == ESCAPE_CODE) {
+ cpu_buf->sample_invalid_eip++;
+ return 0;
+ }
+
if (nr_available_slots(cpu_buf) < 3) {
cpu_buf->sample_lost_overflow++;
return 0;
cpu_buf->tracing = 0;
}
-void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel)
{
struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
- unsigned long pc = profile_pc(regs);
- int is_kernel = !user_mode(regs);
if (!backtrace_depth) {
log_sample(cpu_buf, pc, is_kernel, event);
oprofile_end_trace(cpu_buf);
}
+void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
+{
+ int is_kernel = !user_mode(regs);
+ unsigned long pc = profile_pc(regs);
+
+ oprofile_add_ext_sample(pc, regs, event, is_kernel);
+}
+
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
struct oprofile_cpu_buffer * cpu_buf = &cpu_buffer[smp_processor_id()];
* By using schedule_delayed_work_on and then schedule_delayed_work
* we guarantee this will stay on the correct cpu
*/
-static void wq_sync_buffer(void * data)
+static void wq_sync_buffer(struct work_struct *work)
{
- struct oprofile_cpu_buffer * b = data;
+ struct oprofile_cpu_buffer * b =
+ container_of(work, struct oprofile_cpu_buffer, work.work);
if (b->cpu != smp_processor_id()) {
printk("WQ on CPU%d, prefer CPU%d\n",
smp_processor_id(), b->cpu);