X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Foprofile%2Fcpu_buffer.c;h=c93d3d2640ab884b2a4d43a4339afd2613cd149d;hb=f84e3f521e1449300e0fdc314b7b43b418a66dc3;hp=78193e4bbdb564981a98b00437bdad6a8b851500;hpb=0a0fc0ddbe732779366ab6b1b879f62195e65967;p=powerpc.git

diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 78193e4bbd..c93d3d2640 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -29,7 +29,7 @@
 
 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;
@@ -38,9 +38,8 @@ void free_cpu_buffers(void)
 {
 	int i;
  
-	for_each_online_cpu(i) {
+	for_each_online_cpu(i)
 		vfree(cpu_buffer[i].buffer);
-	}
 }
 
 int alloc_cpu_buffers(void)
@@ -65,8 +64,10 @@ 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;
 
@@ -176,6 +177,11 @@ static int log_sample(struct oprofile_cpu_buffer * cpu_buf, unsigned long pc,
 
 	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;
@@ -218,11 +224,10 @@ static void oprofile_end_trace(struct oprofile_cpu_buffer * cpu_buf)
 	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);
@@ -239,6 +244,14 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long 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()];
@@ -276,9 +289,10 @@ void oprofile_add_trace(unsigned long pc)
  * 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);