From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Tue, 2 Dec 2014 03:06:23 +0000 (-0500)
Subject: Fix: Missing RCU read lock in kernel_destroy_session()
X-Git-Tag: v2.5.3~2
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=27c08214e6a54c1955d01f2471573c0720a2faa4;p=lttng-tools.git

Fix: Missing RCU read lock in kernel_destroy_session()

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/kernel.c b/src/bin/lttng-sessiond/kernel.c
index 9134d4683..fc95302fc 100644
--- a/src/bin/lttng-sessiond/kernel.c
+++ b/src/bin/lttng-sessiond/kernel.c
@@ -767,6 +767,7 @@ void kernel_destroy_session(struct ltt_kernel_session *ksess)
 		struct lttng_ht_iter iter;
 
 		/* For each consumer socket. */
+		rcu_read_lock();
 		cds_lfht_for_each_entry(ksess->consumer->socks->ht, &iter.iter,
 				socket, node.node) {
 			struct ltt_kernel_channel *chan;
@@ -780,6 +781,7 @@ void kernel_destroy_session(struct ltt_kernel_session *ksess)
 				}
 			}
 		}
+		rcu_read_unlock();
 	}
 
 	/* Close any relayd session */