Merge branch 'perfcounters-fixes-for-linus' of...

Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change
  perf_counter: x86: Fix PMU resource leak
  perf util: SVG performance improvements
  perf util: Make the timechart SVG width dynamic
  perf timechart: Show the duration of scheduler delays in the SVG
  perf timechart: Show the name of the waker/wakee in timechart

arch/powerpc/kernel/perf_counter.c

@@ -1162,7 +1162,6 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
 	 */
 	if (record) {
 		struct perf_sample_data data = {
-			.regs	= regs,
 			.addr	= 0,
 			.period	= counter->hw.last_period,
 		};
@@ -1170,7 +1169,7 @@ static void record_and_restart(struct perf_counter *counter, unsigned long val,
 		if (counter->attr.sample_type & PERF_SAMPLE_ADDR)
 			perf_get_data_addr(regs, &data.addr);
 
-		if (perf_counter_overflow(counter, nmi, &data)) {
+		if (perf_counter_overflow(counter, nmi, &data, regs)) {
 			/*
 			 * Interrupts are coming too fast - throttle them
 			 * by setting the counter to 0, so it will be

arch/sparc/kernel/perf_counter.c

@@ -493,7 +493,6 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
 
 	regs = args->regs;
 
-	data.regs = regs;
 	data.addr = 0;
 
 	cpuc = &__get_cpu_var(cpu_hw_counters);
@@ -513,7 +512,7 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
 		if (!sparc_perf_counter_set_period(counter, hwc, idx))
 			continue;
 
-		if (perf_counter_overflow(counter, 1, &data))
+		if (perf_counter_overflow(counter, 1, &data, regs))
 			sparc_pmu_disable_counter(hwc, idx);
 	}
 

arch/x86/kernel/cpu/perf_counter.c

@@ -924,6 +924,8 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
 	if (err)
 		return err;
 
+	counter->destroy = hw_perf_counter_destroy;
+
 	/*
 	 * Generate PMC IRQs:
 	 * (keep 'enabled' bit clear for now)
@@ -953,8 +955,6 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
 			return -EOPNOTSUPP;
 	}
 
-	counter->destroy = hw_perf_counter_destroy;
-
 	/*
 	 * Raw event type provide the config in the event structure
 	 */
@@ -2107,8 +2107,11 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
 	int err;
 
 	err = __hw_perf_counter_init(counter);
-	if (err)
+	if (err) {
+		if (counter->destroy)
+			counter->destroy(counter);
 		return ERR_PTR(err);
+	}
 
 	return &pmu;
 }

include/linux/perf_counter.h

@@ -849,23 +849,6 @@ static inline void perf_counter_comm(struct task_struct *tsk)		{ }
 static inline void perf_counter_fork(struct task_struct *tsk)		{ }
 static inline void perf_counter_init(void)				{ }
 
-static inline int
-perf_output_begin(struct perf_output_handle *handle, struct perf_counter *c,
-		  unsigned int size, int nmi, int sample)		{ }
-static inline void perf_output_end(struct perf_output_handle *handle)	{ }
-static inline void
-perf_output_copy(struct perf_output_handle *handle,
-		 const void *buf, unsigned int len)			{ }
-static inline void
-perf_output_sample(struct perf_output_handle *handle,
-		   struct perf_event_header *header,
-		   struct perf_sample_data *data,
-		   struct perf_counter *counter)			{ }
-static inline void
-perf_prepare_sample(struct perf_event_header *header,
-		    struct perf_sample_data *data,
-		    struct perf_counter *counter,
-		    struct pt_regs *regs)				{ }
 #endif
 
 #define perf_output_put(handle, x) \

tools/perf/Documentation/perf-timechart.txt

@@ -28,6 +28,9 @@ OPTIONS
 -i::
 --input=::
         Select the input file (default: perf.data)
+-w::
+--width=::
+        Select the width of the SVG file (default: 1000)
 
 
 SEE ALSO

tools/perf/builtin-timechart.c

@@ -752,6 +752,7 @@ static void draw_wakeups(void)
 	we = wake_events;
 	while (we) {
 		int from = 0, to = 0;
+		char *task_from = NULL, *task_to = NULL;
 
 		/* locate the column of the waker and wakee */
 		p = all_data;
@@ -760,10 +761,14 @@ static void draw_wakeups(void)
 				c = p->all;
 				while (c) {
 					if (c->Y && c->start_time <= we->time && c->end_time >= we->time) {
-						if (p->pid == we->waker)
+						if (p->pid == we->waker) {
 							from = c->Y;
-						if (p->pid == we->wakee)
+							task_from = c->comm;
+						}
+						if (p->pid == we->wakee) {
 							to = c->Y;
+							task_to = c->comm;
+						}
 					}
 					c = c->next;
 				}
@@ -776,7 +781,7 @@ static void draw_wakeups(void)
 		else if (from && to && abs(from - to) == 1)
 			svg_wakeline(we->time, from, to);
 		else
-			svg_partial_wakeline(we->time, from, to);
+			svg_partial_wakeline(we->time, from, task_from, to, task_to);
 		we = we->next;
 	}
 }
@@ -822,15 +827,15 @@ static void draw_process_bars(void)
 				continue;
 			}
 
-			svg_box(Y, p->start_time, p->end_time, "process");
+			svg_box(Y, c->start_time, c->end_time, "process");
 			sample = c->samples;
 			while (sample) {
 				if (sample->type == TYPE_RUNNING)
-					svg_sample(Y, sample->cpu, sample->start_time, sample->end_time, "sample");
+					svg_sample(Y, sample->cpu, sample->start_time, sample->end_time);
 				if (sample->type == TYPE_BLOCKED)
 					svg_box(Y, sample->start_time, sample->end_time, "blocked");
 				if (sample->type == TYPE_WAITING)
-					svg_box(Y, sample->start_time, sample->end_time, "waiting");
+					svg_waiting(Y, sample->start_time, sample->end_time);
 				sample = sample->next;
 			}
 
@@ -910,9 +915,9 @@ static void write_svg_file(const char *filename)
 	if (count < 15)
 		count = determine_display_tasks(TIME_THRESH / 10);
 
-	open_svg(filename, numcpus, count);
+	open_svg(filename, numcpus, count, first_time, last_time);
 
-	svg_time_grid(first_time, last_time);
+	svg_time_grid();
 	svg_legenda();
 
 	for (i = 0; i < numcpus; i++)
@@ -1127,6 +1132,8 @@ static const struct option options[] = {
 		    "input file name"),
 	OPT_STRING('o', "output", &output_name, "file",
 		    "output file name"),
+	OPT_INTEGER('w', "width", &svg_page_width,
+		    "page width"),
 	OPT_END()
 };
 

tools/perf/util/svghelper.h

@@ -3,9 +3,10 @@
 
 #include "types.h"
 
-extern void open_svg(const char *filename, int cpus, int rows);
+extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
 extern void svg_box(int Yslot, u64 start, u64 end, const char *type);
-extern void svg_sample(int Yslot, int cpu, u64 start, u64 end, const char *type);
+extern void svg_sample(int Yslot, int cpu, u64 start, u64 end);
+extern void svg_waiting(int Yslot, u64 start, u64 end);
 extern void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency);
 
 
@@ -14,12 +15,14 @@ extern void svg_cstate(int cpu, u64 start, u64 end, int type);
 extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq);
 
 
-extern void svg_time_grid(u64 start, u64 end);
+extern void svg_time_grid(void);
 extern void svg_legenda(void);
 extern void svg_wakeline(u64 start, int row1, int row2);
-extern void svg_partial_wakeline(u64 start, int row1, int row2);
+extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2);
 extern void svg_interrupt(u64 start, int row);
 extern void svg_text(int Yslot, u64 start, const char *text);
 extern void svg_close(void);
 
+extern int svg_page_width;
+
 #endif