lkml.org 
[lkml]   [2019]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 2/4] perf: Add filter_match() as a parameter for pinned/flexible_sched_in()
Date
From: Kan Liang <kan.liang@linux.intel.com>

A fast path will be introduced in the following patches to speed up the
cgroup events sched in, which only needs a simpler filter_match().

Add filter_match() as a parameter for pinned/flexible_sched_in().

No functional change.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
kernel/events/core.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index e7ca0474..a3885e68 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3316,7 +3316,8 @@ static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
}

static int visit_groups_merge(struct perf_event_groups *groups, int cpu,
- int (*func)(struct perf_event *, void *), void *data)
+ int (*func)(struct perf_event *, void *, int (*)(struct perf_event *)),
+ void *data)
{
struct perf_event **evt, *evt1, *evt2;
int ret;
@@ -3336,7 +3337,7 @@ static int visit_groups_merge(struct perf_event_groups *groups, int cpu,
evt = &evt2;
}

- ret = func(*evt, data);
+ ret = func(*evt, data, event_filter_match);
if (ret)
return ret;

@@ -3353,7 +3354,8 @@ struct sched_in_data {
enum event_type_t event_type;
};

-static int pinned_sched_in(struct perf_event *event, void *data)
+static int pinned_sched_in(struct perf_event *event, void *data,
+ int (*filter_match)(struct perf_event *))
{
struct sched_in_data *sid = data;

@@ -3363,7 +3365,7 @@ static int pinned_sched_in(struct perf_event *event, void *data)
if (perf_cgroup_skip_switch(sid->event_type, event, true))
return 0;

- if (!event_filter_match(event))
+ if (!filter_match(event))
return 0;

if (group_can_go_on(event, sid->cpuctx, sid->can_add_hw)) {
@@ -3381,7 +3383,8 @@ static int pinned_sched_in(struct perf_event *event, void *data)
return 0;
}

-static int flexible_sched_in(struct perf_event *event, void *data)
+static int flexible_sched_in(struct perf_event *event, void *data,
+ int (*filter_match)(struct perf_event *))
{
struct sched_in_data *sid = data;

@@ -3391,7 +3394,7 @@ static int flexible_sched_in(struct perf_event *event, void *data)
if (perf_cgroup_skip_switch(sid->event_type, event, false))
return 0;

- if (!event_filter_match(event))
+ if (!filter_match(event))
return 0;

if (group_can_go_on(event, sid->cpuctx, sid->can_add_hw)) {
--
2.7.4
\
 
 \ /
  Last update: 2019-05-15 23:03    [W:0.028 / U:14.392 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site