From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Wed, 18 May 2016 18:50:01 +0000 (-0400)
Subject: Fix: urcu-bp: re-initialize list head on library exit
X-Git-Tag: v0.8.10~13
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=f4d5fce7d699049e8f1c2cf8c4a56af02b78460a;p=userspace-rcu.git

Fix: urcu-bp: re-initialize list head on library exit

In case an application would try to create threads after the urcu-bp
library destructor has run, make sure the arena chunk list is
re-initialized after the memory mappings are unmapped.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/urcu-bp.c b/urcu-bp.c
index 9d6713e..f78935e 100644
--- a/urcu-bp.c
+++ b/urcu-bp.c
@@ -590,6 +590,7 @@ void _rcu_bp_exit(void)
 			munmap(chunk, chunk->data_len
 					+ sizeof(struct registry_chunk));
 		}
+		CDS_INIT_LIST_HEAD(&registry_arena.chunk_list);
 		ret = pthread_key_delete(urcu_bp_key);
 		if (ret)
 			abort();