---

yaml
---
r: 147439
b: refs/heads/master
c: f370e1e
h: refs/heads/master
i:
  147437: a086133
  147435: 9090e15
  147431: 1af177e
  147423: 26ac0b5
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a85f61abe11a46553c4562e74edb27ebc782aeb7
+refs/heads/master: f370e1e2f195ec1e6420e26fc83e0319595db578

trunk/include/linux/perf_counter.h

@@ -105,6 +105,7 @@ enum perf_counter_record_format {
 	PERF_RECORD_GROUP	= 1U << 4,
 	PERF_RECORD_CALLCHAIN	= 1U << 5,
 	PERF_RECORD_CONFIG	= 1U << 6,
+	PERF_RECORD_CPU		= 1U << 7,
 };
 
 /*
@@ -260,6 +261,7 @@ enum perf_event_type {
 	 * 	{ u64			time;     } && PERF_RECORD_TIME
 	 * 	{ u64			addr;     } && PERF_RECORD_ADDR
 	 * 	{ u64			config;   } && PERF_RECORD_CONFIG
+	 * 	{ u32			cpu, res; } && PERF_RECORD_CPU
 	 *
 	 * 	{ u64			nr;
 	 * 	  { u64 event, val; } 	cnt[nr];  } && PERF_RECORD_GROUP

trunk/kernel/perf_counter.c

@@ -1956,6 +1956,9 @@ static void perf_counter_output(struct perf_counter *counter,
 	struct perf_callchain_entry *callchain = NULL;
 	int callchain_size = 0;
 	u64 time;
+	struct {
+		u32 cpu, reserved;
+	} cpu_entry;
 
 	header.type = 0;
 	header.size = sizeof(header);
@@ -1999,6 +2002,13 @@ static void perf_counter_output(struct perf_counter *counter,
 		header.size += sizeof(u64);
 	}
 
+	if (record_type & PERF_RECORD_CPU) {
+		header.type |= PERF_RECORD_CPU;
+		header.size += sizeof(cpu_entry);
+
+		cpu_entry.cpu = raw_smp_processor_id();
+	}
+
 	if (record_type & PERF_RECORD_GROUP) {
 		header.type |= PERF_RECORD_GROUP;
 		header.size += sizeof(u64) +
@@ -2037,6 +2047,9 @@ static void perf_counter_output(struct perf_counter *counter,
 	if (record_type & PERF_RECORD_CONFIG)
 		perf_output_put(&handle, counter->hw_event.config);
 
+	if (record_type & PERF_RECORD_CPU)
+		perf_output_put(&handle, cpu_entry);
+
 	/*
 	 * XXX PERF_RECORD_GROUP vs inherited counters seems difficult.
 	 */