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authorPeter Zijlstra <peterz@infradead.org>2017-11-13 14:28:33 +0100
committerIngo Molnar <mingo@kernel.org>2018-03-12 15:28:49 +0100
commit8343aae66167df6708128a778e750d48dbe31302 (patch)
tree9b843bb1def15ca6e44e7ee0a80dc89e643ab9ee /kernel
parent1cac7b1ae3579457200213303fc28ca13b75592f (diff)
downloadlinux-8343aae66167df6708128a778e750d48dbe31302.tar.bz2
perf/core: Remove perf_event::group_entry
Now that all the grouping is done with RB trees, we no longer need group_entry and can replace the whole thing with sibling_list. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Dmitri Prokhorov <Dmitry.Prohorov@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Valery Cherepennikov <valery.cherepennikov@intel.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/core.c37
1 files changed, 18 insertions, 19 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2d8c0208ca4a..9a07bbe66451 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -643,7 +643,7 @@ static void perf_event_update_sibling_time(struct perf_event *leader)
{
struct perf_event *sibling;
- list_for_each_entry(sibling, &leader->sibling_list, group_entry)
+ list_for_each_entry(sibling, &leader->sibling_list, sibling_list)
perf_event_update_time(sibling);
}
@@ -1835,12 +1835,12 @@ static void perf_group_attach(struct perf_event *event)
group_leader->group_caps &= event->event_caps;
- list_add_tail(&event->group_entry, &group_leader->sibling_list);
+ list_add_tail(&event->sibling_list, &group_leader->sibling_list);
group_leader->nr_siblings++;
perf_event__header_size(group_leader);
- list_for_each_entry(pos, &group_leader->sibling_list, group_entry)
+ list_for_each_entry(pos, &group_leader->sibling_list, sibling_list)
perf_event__header_size(pos);
}
@@ -1904,7 +1904,7 @@ static void perf_group_detach(struct perf_event *event)
* If this is a sibling, remove it from its group.
*/
if (event->group_leader != event) {
- list_del_init(&event->group_entry);
+ list_del_init(&event->sibling_list);
event->group_leader->nr_siblings--;
goto out;
}
@@ -1914,7 +1914,7 @@ static void perf_group_detach(struct perf_event *event)
* upgrade the siblings to singleton events by adding them
* to whatever list we are on.
*/
- list_for_each_entry_safe(sibling, tmp, &event->sibling_list, group_entry) {
+ list_for_each_entry_safe(sibling, tmp, &event->sibling_list, sibling_list) {
sibling->group_leader = sibling;
@@ -1922,7 +1922,7 @@ static void perf_group_detach(struct perf_event *event)
sibling->group_caps = event->group_caps;
if (!RB_EMPTY_NODE(&event->group_node)) {
- list_del_init(&sibling->group_entry);
+ list_del_init(&sibling->sibling_list);
add_event_to_groups(sibling, event->ctx);
}
@@ -1932,7 +1932,7 @@ static void perf_group_detach(struct perf_event *event)
out:
perf_event__header_size(event->group_leader);
- list_for_each_entry(tmp, &event->group_leader->sibling_list, group_entry)
+ list_for_each_entry(tmp, &event->group_leader->sibling_list, sibling_list)
perf_event__header_size(tmp);
}
@@ -1960,7 +1960,7 @@ static inline int pmu_filter_match(struct perf_event *event)
if (!__pmu_filter_match(event))
return 0;
- list_for_each_entry(child, &event->sibling_list, group_entry) {
+ list_for_each_entry(child, &event->sibling_list, sibling_list) {
if (!__pmu_filter_match(child))
return 0;
}
@@ -2028,7 +2028,7 @@ group_sched_out(struct perf_event *group_event,
/*
* Schedule out siblings (if any):
*/
- list_for_each_entry(event, &group_event->sibling_list, group_entry)
+ list_for_each_entry(event, &group_event->sibling_list, sibling_list)
event_sched_out(event, cpuctx, ctx);
perf_pmu_enable(ctx->pmu);
@@ -2307,7 +2307,7 @@ group_sched_in(struct perf_event *group_event,
/*
* Schedule in siblings as one group (if any):
*/
- list_for_each_entry(event, &group_event->sibling_list, group_entry) {
+ list_for_each_entry(event, &group_event->sibling_list, sibling_list) {
if (event_sched_in(event, cpuctx, ctx)) {
partial_group = event;
goto group_error;
@@ -2323,7 +2323,7 @@ group_error:
* partial group before returning:
* The events up to the failed event are scheduled out normally.
*/
- list_for_each_entry(event, &group_event->sibling_list, group_entry) {
+ list_for_each_entry(event, &group_event->sibling_list, sibling_list) {
if (event == partial_group)
break;
@@ -3796,7 +3796,7 @@ static void __perf_event_read(void *info)
pmu->read(event);
- list_for_each_entry(sub, &event->sibling_list, group_entry) {
+ list_for_each_entry(sub, &event->sibling_list, sibling_list) {
if (sub->state == PERF_EVENT_STATE_ACTIVE) {
/*
* Use sibling's PMU rather than @event's since
@@ -4642,7 +4642,7 @@ static int __perf_read_group_add(struct perf_event *leader,
if (read_format & PERF_FORMAT_ID)
values[n++] = primary_event_id(leader);
- list_for_each_entry(sub, &leader->sibling_list, group_entry) {
+ list_for_each_entry(sub, &leader->sibling_list, sibling_list) {
values[n++] += perf_event_count(sub);
if (read_format & PERF_FORMAT_ID)
values[n++] = primary_event_id(sub);
@@ -4836,7 +4836,7 @@ static void perf_event_for_each(struct perf_event *event,
event = event->group_leader;
perf_event_for_each_child(event, func);
- list_for_each_entry(sibling, &event->sibling_list, group_entry)
+ list_for_each_entry(sibling, &event->sibling_list, sibling_list)
perf_event_for_each_child(sibling, func);
}
@@ -5995,7 +5995,7 @@ static void perf_output_read_group(struct perf_output_handle *handle,
__output_copy(handle, values, n * sizeof(u64));
- list_for_each_entry(sub, &leader->sibling_list, group_entry) {
+ list_for_each_entry(sub, &leader->sibling_list, sibling_list) {
n = 0;
if ((sub != event) &&
@@ -9813,7 +9813,6 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
mutex_init(&event->child_mutex);
INIT_LIST_HEAD(&event->child_list);
- INIT_LIST_HEAD(&event->group_entry);
INIT_LIST_HEAD(&event->event_entry);
INIT_LIST_HEAD(&event->sibling_list);
init_event_group(event);
@@ -10581,7 +10580,7 @@ SYSCALL_DEFINE5(perf_event_open,
put_ctx(gctx);
list_for_each_entry(sibling, &group_leader->sibling_list,
- group_entry) {
+ sibling_list) {
perf_remove_from_context(sibling, 0);
put_ctx(gctx);
}
@@ -10603,7 +10602,7 @@ SYSCALL_DEFINE5(perf_event_open,
* reachable through the group lists.
*/
list_for_each_entry(sibling, &group_leader->sibling_list,
- group_entry) {
+ sibling_list) {
perf_event__state_init(sibling);
perf_install_in_context(ctx, sibling, sibling->cpu);
get_ctx(ctx);
@@ -11242,7 +11241,7 @@ static int inherit_group(struct perf_event *parent_event,
* case inherit_event() will create individual events, similar to what
* perf_group_detach() would do anyway.
*/
- list_for_each_entry(sub, &parent_event->sibling_list, group_entry) {
+ list_for_each_entry(sub, &parent_event->sibling_list, sibling_list) {
child_ctr = inherit_event(sub, parent, parent_ctx,
child, leader, child_ctx);
if (IS_ERR(child_ctr))