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Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Browse Source 
Fixes for perf/core:

 - Rename some perf_target methods to avoid double negation, from Namhyung Kim.
 - Revert change to use per task events with inheritance, from Namhyung Kim.
 - Events should start disabled till children starts running, from David Ahern.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
2012-05-21 09:17:31 +02:00
parent b732d439cb 5e1c81d98a
commit bb27f55eb9
361 changed files with 3653 additions and 2162 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/trace/trace.c
View File

@@ -4744,7 +4744,8 @@ 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;
@@ -4762,7 +4763,8 @@ 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;
@@ -4849,7 +4851,7 @@ 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,

4
kernel/trace/trace.h
View File

@@ -838,11 +838,11 @@ void trace_printk_init_buffers(void);
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 */

5
kernel/trace/trace_events.c
View File

@@ -294,6 +294,9 @@ static int __ftrace_set_clr_event(const char *match, const char *sub,
if (!call->name || !call->class || !call->class->reg)
continue;
if (call->flags & TRACE_EVENT_FL_IGNORE_ENABLE)
continue;
if (match &&
strcmp(match, call->name) != 0 &&
strcmp(match, call->class->system) != 0)
@@ -1164,7 +1167,7 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
return -1;
}
if (call->class->reg)
if (call->class->reg && !(call->flags & TRACE_EVENT_FL_IGNORE_ENABLE))
trace_create_file("enable", 0644, call->dir, call,
enable);

1
kernel/trace/trace_export.c
View File

@@ -180,6 +180,7 @@ struct ftrace_event_call __used event_##call = { \
.event.type = etype, \
.class = &event_class_ftrace_##call, \
.print_fmt = print, \
.flags = TRACE_EVENT_FL_IGNORE_ENABLE, \
}; \
struct ftrace_event_call __used \
__attribute__((section("_ftrace_events"))) *__event_##call = &event_##call;

5
kernel/trace/trace_output.c
View File

@@ -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);