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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-03 11:23:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-03 14:14:30 +0200 |
| commit | 226f62fdd53d5b2c74e242aa11f6ad43d0285d3f (patch) | |
| tree | bfe54a45e7fe85520c0675c2f8e90b7704aad4ff /kernel | |
| parent | perf_counter: powerpc: Fix race causing "oops trying to read PMC0" errors (diff) | |
| download | linux-226f62fdd53d5b2c74e242aa11f6ad43d0285d3f.tar.xz linux-226f62fdd53d5b2c74e242aa11f6ad43d0285d3f.zip | |
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>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 23bf757ed321..b7d7a9f0bd7a 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1412,6 +1412,12 @@ long do_fork(unsigned long clone_flags, if (clone_flags & CLONE_VFORK) { p->vfork_done = &vfork; init_completion(&vfork); + } else { + /* + * vfork will do an exec which will call + * set_task_comm() + */ + perf_counter_comm(p); } audit_finish_fork(p); |