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Commit 33726bf2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'perf-urgent-for-linus' of... 

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

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix comments in include/linux/perf_event.h
  perf: Comment /proc/sys/kernel/perf_event_paranoid to be part of user ABI
  perf python: Fix argument name list of read_on_cpu()
  perf evlist: Don't die if sample_{id_all|type} is invalid
  perf python: Use exception to propagate errors
  perf evlist: Remove dependency on debug routines
  perf, cgroups: Fix up for new API
parents 5b28f6a2 d7ebe75b

include/linux/perf_event.h

+4 −4
Original line number Diff line number Diff line
@@ -137,14 +137,14 @@ enum perf_event_sample_format { 
 *

 * struct read_format {

 *	{ u64		value;

 *	  { u64		time_enabled; } && PERF_FORMAT_ENABLED

 *	  { u64		time_running; } && PERF_FORMAT_RUNNING

 *	  { u64		time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED

 *	  { u64		time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING

 *	  { u64		id;           } && PERF_FORMAT_ID

 *	} && !PERF_FORMAT_GROUP

 *

 *	{ u64		nr;

 *	  { u64		time_enabled; } && PERF_FORMAT_ENABLED

 *	  { u64		time_running; } && PERF_FORMAT_RUNNING

 *	  { u64		time_enabled; } && PERF_FORMAT_TOTAL_TIME_ENABLED

 *	  { u64		time_running; } && PERF_FORMAT_TOTAL_TIME_RUNNING

 *	  { u64		value;

 *	    { u64	id;           } && PERF_FORMAT_ID

 *	  }		cntr[nr];

kernel/events/core.c

+4 −18
Original line number Diff line number Diff line
@@ -7402,26 +7402,12 @@ static int __perf_cgroup_move(void *info) 
	return 0;

}



static void perf_cgroup_move(struct task_struct *task)

static void

perf_cgroup_attach_task(struct cgroup *cgrp, struct task_struct *task)

{

	task_function_call(task, __perf_cgroup_move, task);

}



static void perf_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,

		struct cgroup *old_cgrp, struct task_struct *task,

		bool threadgroup)

{

	perf_cgroup_move(task);

	if (threadgroup) {

		struct task_struct *c;

		rcu_read_lock();

		list_for_each_entry_rcu(c, &task->thread_group, thread_group) {

			perf_cgroup_move(c);

		}

		rcu_read_unlock();

	}

}



static void perf_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp,

		struct cgroup *old_cgrp, struct task_struct *task)

{
@@ -7433,7 +7419,7 @@ static void perf_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp, 
	if (!(task->flags & PF_EXITING))

		return;



	perf_cgroup_move(task);

	perf_cgroup_attach_task(cgrp, task);

}



struct cgroup_subsys perf_subsys = {
@@ -7442,6 +7428,6 @@ struct cgroup_subsys perf_subsys = { 
	.create		= perf_cgroup_create,

	.destroy	= perf_cgroup_destroy,

	.exit		= perf_cgroup_exit,

	.attach		= perf_cgroup_attach,

	.attach_task	= perf_cgroup_attach_task,

};

#endif /* CONFIG_CGROUP_PERF */

kernel/sysctl.c

+6 −0
Original line number Diff line number Diff line
@@ -938,6 +938,12 @@ static struct ctl_table kern_table[] = { 
	},

#endif

#ifdef CONFIG_PERF_EVENTS

	/*

	 * User-space scripts rely on the existence of this file

	 * as a feature check for perf_events being enabled.

	 *

	 * So it's an ABI, do not remove!

	 */

	{

		.procname	= "perf_event_paranoid",

		.data		= &sysctl_perf_event_paranoid,

tools/perf/builtin-test.c

+1 −1
Original line number Diff line number Diff line
@@ -474,7 +474,7 @@ static int test__basic_mmap(void) 
	unsigned int nr_events[nsyscalls],

		     expected_nr_events[nsyscalls], i, j;

	struct perf_evsel *evsels[nsyscalls], *evsel;

	int sample_size = perf_sample_size(attr.sample_type);

	int sample_size = __perf_evsel__sample_size(attr.sample_type);



	for (i = 0; i < nsyscalls; ++i) {

		char name[64];

tools/perf/util/event.c

+0 −16
Original line number Diff line number Diff line
@@ -35,22 +35,6 @@ const char *perf_event__name(unsigned int id) 
	return perf_event__names[id];

}



int perf_sample_size(u64 sample_type)

{

	u64 mask = sample_type & PERF_SAMPLE_MASK;

	int size = 0;

	int i;



	for (i = 0; i < 64; i++) {

		if (mask & (1ULL << i))

			size++;

	}



	size *= sizeof(u64);



	return size;

}



static struct perf_sample synth_sample = {

	.pid	   = -1,

	.tid	   = -1,