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authorStephane Eranian <eranian@google.com>2011-01-03 18:20:01 +0200
committerIngo Molnar <mingo@elte.hu>2011-01-07 15:08:50 +0100
commit0b3fcf178deefd7b64154c2c0760a2c63df0b74f (patch)
treeb84509c9ac5935ac41f6fc9c444bc406cd2c54d8 /kernel/exit.c
parent23a2f3ab46596d9fd0b0e592d2101bea90970594 (diff)
downloadlinux-0b3fcf178deefd7b64154c2c0760a2c63df0b74f.tar.gz
perf_events: Move code around to prepare for cgroup
In particular this patch move perf_event_exit_task() before
cgroup_exit() to allow for cgroup support. The cgroup_exit()
function detaches the cgroups attached to a task.

Other movements include hoisting some definitions and inlines
at the top of perf_event.c

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4d22058b.cdace30a.4657.ffff95b1@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 676149a4ac5f..8cb89045ecf3 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -994,6 +994,15 @@ NORET_TYPE void do_exit(long code)
 	exit_fs(tsk);
 	check_stack_usage();
 	exit_thread();
+
+	/*
+	 * Flush inherited counters to the parent - before the parent
+	 * gets woken up by child-exit notifications.
+	 *
+	 * because of cgroup mode, must be called before cgroup_exit()
+	 */
+	perf_event_exit_task(tsk);
+
 	cgroup_exit(tsk, 1);
 
 	if (group_dead)
@@ -1007,11 +1016,6 @@ NORET_TYPE void do_exit(long code)
 	 * FIXME: do that only when needed, using sched_exit tracepoint
 	 */
 	flush_ptrace_hw_breakpoint(tsk);
-	/*
-	 * Flush inherited counters to the parent - before the parent
-	 * gets woken up by child-exit notifications.
-	 */
-	perf_event_exit_task(tsk);
 
 	exit_notify(tsk, group_dead);
 #ifdef CONFIG_NUMA