Commit 06fc5d3d authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull perf fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix perf_event_for_each() to use sibling
  perf symbols: Read plt symbols from proper symtab_type binary
  tracing: Fix stacktrace of latency tracers (irqsoff and friends)
  perf tools: Add 'G' and 'H' modifiers to event parsing
  tracing: Fix regression with tracing_on
  perf tools: Drop CROSS_COMPILE from flex and bison calls
  perf report: Fix crash showing warning related to kernel maps
  tracing: Fix build breakage without CONFIG_PERF_EVENTS (again)
parents f6072452 724b6daa

kernel/events/core.c

+1 −1
Original line number Diff line number Diff line
@@ -3183,7 +3183,7 @@ static void perf_event_for_each(struct perf_event *event, 
	perf_event_for_each_child(event, func);

	func(event);

	list_for_each_entry(sibling, &event->sibling_list, group_entry)

		perf_event_for_each_child(event, func);

		perf_event_for_each_child(sibling, func);

	mutex_unlock(&ctx->mutex);

}

kernel/trace/trace.c

+5 −3
Original line number Diff line number Diff line
@@ -4629,7 +4629,8 @@ static ssize_t 
rb_simple_read(struct file *filp, char __user *ubuf,

	       size_t cnt, loff_t *ppos)

{

	struct ring_buffer *buffer = filp->private_data;

	struct trace_array *tr = filp->private_data;

	struct ring_buffer *buffer = tr->buffer;

	char buf[64];

	int r;
@@ -4647,7 +4648,8 @@ static ssize_t 
rb_simple_write(struct file *filp, const char __user *ubuf,

		size_t cnt, loff_t *ppos)

{

	struct ring_buffer *buffer = filp->private_data;

	struct trace_array *tr = filp->private_data;

	struct ring_buffer *buffer = tr->buffer;

	unsigned long val;

	int ret;
@@ -4734,7 +4736,7 @@ static __init int tracer_init_debugfs(void) 
			  &trace_clock_fops);



	trace_create_file("tracing_on", 0644, d_tracer,

			    global_trace.buffer, &rb_simple_fops);

			    &global_trace, &rb_simple_fops);



#ifdef CONFIG_DYNAMIC_FTRACE

	trace_create_file("dyn_ftrace_total_info", 0444, d_tracer,

kernel/trace/trace.h

+2 −2
Original line number Diff line number Diff line
@@ -836,11 +836,11 @@ extern const char *__stop___trace_bprintk_fmt[]; 
		     filter)

#include "trace_entries.h"



#ifdef CONFIG_FUNCTION_TRACER

#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_FUNCTION_TRACER)

int perf_ftrace_event_register(struct ftrace_event_call *call,

			       enum trace_reg type, void *data);

#else

#define perf_ftrace_event_register NULL

#endif /* CONFIG_FUNCTION_TRACER */

#endif



#endif /* _LINUX_KERNEL_TRACE_H */

kernel/trace/trace_output.c

+5 −0
Original line number Diff line number Diff line
@@ -652,6 +652,8 @@ int trace_print_lat_context(struct trace_iterator *iter) 
{

	u64 next_ts;

	int ret;

	/* trace_find_next_entry will reset ent_size */

	int ent_size = iter->ent_size;

	struct trace_seq *s = &iter->seq;

	struct trace_entry *entry = iter->ent,

			   *next_entry = trace_find_next_entry(iter, NULL,
@@ -660,6 +662,9 @@ int trace_print_lat_context(struct trace_iterator *iter) 
	unsigned long abs_usecs = ns2usecs(iter->ts - iter->tr->time_start);

	unsigned long rel_usecs;



	/* Restore the original ent_size */

	iter->ent_size = ent_size;



	if (!next_entry)

		next_ts = iter->ts;

	rel_usecs = ns2usecs(next_ts - iter->ts);

tools/perf/Makefile

+2 −2
Original line number Diff line number Diff line
@@ -234,8 +234,8 @@ endif 


export PERL_PATH



FLEX = $(CROSS_COMPILE)flex

BISON= $(CROSS_COMPILE)bison

FLEX = flex

BISON= bison



$(OUTPUT)util/parse-events-flex.c: util/parse-events.l

	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c

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