Commit 226f62fd authored Jun 03, 2009 by Peter Zijlstra Committed by Ingo Molnar Jun 03, 2009

perf_counter: Add a comm hook for pure fork()s



I noticed missing COMM events and found that we missed
reporting them for pure forks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent dcd945e0

kernel/fork.c

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1412,6 +1412,12 @@ long do_fork(unsigned long clone_flags,
	if (clone_flags & CLONE_VFORK) {		if (clone_flags & CLONE_VFORK) {
	p->vfork_done = &vfork;		p->vfork_done = &vfork;
	init_completion(&vfork);		init_completion(&vfork);
			} else {
			/*
			* vfork will do an exec which will call
			* set_task_comm()
			*/
			perf_counter_comm(p);
	}		}

	audit_finish_fork(p);		audit_finish_fork(p);