linux-kernel - [PATCH 3/4] perf: Don't schedule out/in pinned events on task tick

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Date:	Sun, 17 Jan 2010 13:22:14 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 3/4] perf: Don't schedule out/in pinned events on task tick

We don't need to schedule in/out pinned events on task tick,
now that pinned and flexible groups can be scheduled separately.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Arnaldo Carvalho de Melo <acme@...radead.org>
---
 kernel/perf_event.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index bfc4ee0..a90ae69 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1525,17 +1525,17 @@ void perf_event_task_tick(struct task_struct *curr)
 	if (ctx)
 		perf_ctx_adjust_freq(ctx);
 
-	cpu_ctx_sched_out(cpuctx, EVENT_ALL);
+	cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
 	if (ctx)
-		task_ctx_sched_out(ctx, EVENT_ALL);
+		task_ctx_sched_out(ctx, EVENT_FLEXIBLE);
 
 	rotate_ctx(&cpuctx->ctx);
 	if (ctx)
 		rotate_ctx(ctx);
 
-	cpu_ctx_sched_in(cpuctx, EVENT_ALL);
+	cpu_ctx_sched_in(cpuctx, EVENT_FLEXIBLE);
 	if (ctx)
-		task_ctx_sched_in(curr, EVENT_ALL);
+		task_ctx_sched_in(curr, EVENT_FLEXIBLE);
 }
 
 static int event_enable_on_exec(struct perf_event *event,
-- 
1.6.2.3

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