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perf/core: Remove perf_event::group_entry

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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>
This commit is contained in:
Peter Zijlstra
2017-11-13 14:28:33 +01:00
committed by Ingo Molnar
parent 1cac7b1ae3
commit 8343aae661
19 changed files with 36 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
kernel/events/core.c
View File

@@ -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))