summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-25 12:08:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-25 12:08:24 -0700
commite18588005d79853c2d4101f9416e7c1e8c9584d2 (patch)
tree218e2fbd820689cf1a79709f14c67ba6264728e7
parent9b3e59e3deccef70afece5e6484a324cbc126bcd (diff)
parentf3bed55e850926614b9898fe982f66d2541a36a5 (diff)
Merge tag 'perf-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Two changes: - fix exit event records - extend x86 PMU driver enumeration to add Intel Jasper Lake CPU support" * tag 'perf-urgent-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/core: fix parent pid/tid in task exit events perf/x86/cstate: Add Jasper Lake CPU support
-rw-r--r--arch/x86/events/intel/cstate.c1
-rw-r--r--kernel/events/core.c13
2 files changed, 11 insertions, 3 deletions
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index e4aa20c0426f..442e1ed4acd4 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -643,6 +643,7 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &glm_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &glm_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, &glm_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_cstates),
diff --git a/kernel/events/core.c b/kernel/events/core.c
index bc9b98a9af9a..633b4ae72ed5 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7491,10 +7491,17 @@ static void perf_event_task_output(struct perf_event *event,
goto out;
task_event->event_id.pid = perf_event_pid(event, task);
- task_event->event_id.ppid = perf_event_pid(event, current);
-
task_event->event_id.tid = perf_event_tid(event, task);
- task_event->event_id.ptid = perf_event_tid(event, current);
+
+ if (task_event->event_id.header.type == PERF_RECORD_EXIT) {
+ task_event->event_id.ppid = perf_event_pid(event,
+ task->real_parent);
+ task_event->event_id.ptid = perf_event_pid(event,
+ task->real_parent);
+ } else { /* PERF_RECORD_FORK */
+ task_event->event_id.ppid = perf_event_pid(event, current);
+ task_event->event_id.ptid = perf_event_tid(event, current);
+ }
task_event->event_id.time = perf_event_clock(event);