[ltt-dev] [PATCH 6/7] urcu, call_rcu: Cleanup call_rcu_data pointers before used in child

Lai Jiangshan laijs at cn.fujitsu.com
Wed Sep 28 04:34:32 EDT 2011


Signed-off-by: Lai Jiangshan <laijs at cn.fujitsu.com>
---
 urcu-call-rcu-impl.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/urcu-call-rcu-impl.h b/urcu-call-rcu-impl.h
index 65c1c7a..3c68ae7 100644
--- a/urcu-call-rcu-impl.h
+++ b/urcu-call-rcu-impl.h
@@ -686,6 +686,12 @@ void call_rcu_after_fork_child(void)
 	default_call_rcu_data = NULL;
 	(void)get_default_call_rcu_data();
 
+	/* Cleanup call_rcu_data pointers before used */
+	maxcpus = 0;
+	free(per_cpu_call_rcu_data);
+	per_cpu_call_rcu_data = NULL;
+	thread_call_rcu_data = NULL;
+
 	/* Dispose of all of the rest of the call_rcu_data structures. */
 	cds_list_for_each_entry_safe(crdp, next, &call_rcu_data_list, list) {
 		if (crdp == default_call_rcu_data)
-- 
1.7.4.4





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