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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-05-10 17:12:17 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-05-11 16:10:47 -0700 |
| commit | 72d5a9f7a9542f88397558c65bcfc3b115a65e34 (patch) | |
| tree | e46d3ad1948de45b9641d1a8b88f88bfb3809007 /kernel/rcutree.c | |
| parent | 4376030a54860dedab9d848dfa7cc700a6025c0b (diff) | |
| download | lwn-72d5a9f7a9542f88397558c65bcfc3b115a65e34.tar.gz lwn-72d5a9f7a9542f88397558c65bcfc3b115a65e34.zip | |
rcu: remove all rcu head initializations, except on_stack initializations
Remove all rcu head inits. We don't care about the RCU head state before passing
it to call_rcu() anyway. Only leave the "on_stack" variants so debugobjects can
keep track of objects on stack.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree.c')
| -rw-r--r-- | kernel/rcutree.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index ba6996943e28..d4437345706f 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1484,11 +1484,13 @@ void synchronize_sched(void) if (rcu_blocking_is_gp()) return; + init_rcu_head_on_stack(&rcu.head); init_completion(&rcu.completion); /* Will wake me after RCU finished. */ call_rcu_sched(&rcu.head, wakeme_after_rcu); /* Wait for it. */ wait_for_completion(&rcu.completion); + destroy_rcu_head_on_stack(&rcu.head); } EXPORT_SYMBOL_GPL(synchronize_sched); @@ -1508,11 +1510,13 @@ void synchronize_rcu_bh(void) if (rcu_blocking_is_gp()) return; + init_rcu_head_on_stack(&rcu.head); init_completion(&rcu.completion); /* Will wake me after RCU finished. */ call_rcu_bh(&rcu.head, wakeme_after_rcu); /* Wait for it. */ wait_for_completion(&rcu.completion); + destroy_rcu_head_on_stack(&rcu.head); } EXPORT_SYMBOL_GPL(synchronize_rcu_bh); |