| commit | 9261dd0da6c6432f08670719069449c6efe4f7a9 | [log] [tgz] |
|---|---|---|
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | Wed Aug 14 16:24:26 2013 -0700 |
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | Mon Sep 23 09:18:13 2013 -0700 |
| tree | b8c95dd0e4751e3069e9263d6f46b86251d5dc35 | |
| parent | bb311eccbdab974639263060b8452bf304af0b0c [diff] |
rcu: Add tracing for rcuo no-CBs CPU wakeup handshake Lost wakeups from call_rcu() to the rcuo kthreads can result in hangs that are difficult to diagnose. This commit therefore adds tracing to help pin down the cause of these hangs. Reported-by: Clark Williams <williams@redhat.com> Reported-by: Carsten Emde <C.Emde@osadl.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> [ paulmck: Add const per kbuild test robot's advice. ]