perf_counter: Move child perfcounter init to after scheduler init
Initialize a task's perfcounters (inherit from parent, etc.) after
the child task's scheduler fields have been initialized already.
[ Impact: cleanup ]
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/fork.c b/kernel/fork.c
index e72a09f..675e01e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -984,7 +984,6 @@
goto fork_out;
rt_mutex_init_task(p);
- perf_counter_init_task(p);
#ifdef CONFIG_PROVE_LOCKING
DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled);
@@ -1096,6 +1095,7 @@
/* Perform scheduler related setup. Assign this task to a CPU. */
sched_fork(p, clone_flags);
+ perf_counter_init_task(p);
if ((retval = audit_alloc(p)))
goto bad_fork_cleanup_policy;