X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-ust-comm.c;fp=liblttng-ust%2Flttng-ust-comm.c;h=378ca21cfc71f354a282fe4a9a521cf77319ef02;hb=f4695bf8ff671d17d5175d03ce26706a3e43752a;hp=3df2adc6f96e0b0b16189efe6497509ea845e3da;hpb=93dccd5a8a7657cf4d51bdd042055db17fd678ae;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 3df2adc6..378ca21c 100644
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -335,6 +335,16 @@ void lttng_fixup_ust_mutex_nest_tls(void)
 	asm volatile ("" : : "m" (URCU_TLS(ust_mutex_nest)));
 }
 
+/*
+ * Fixup urcu bp TLS.
+ */
+static
+void lttng_fixup_urcu_bp_tls(void)
+{
+	rcu_read_lock();
+	rcu_read_unlock();
+}
+
 int lttng_get_notify_socket(void *owner)
 {
 	struct sock_info *info = owner;
@@ -1419,6 +1429,7 @@ void __attribute__((constructor)) lttng_ust_init(void)
 	 * to be the dynamic linker mutex) and ust_lock, taken within
 	 * the ust lock.
 	 */
+	lttng_fixup_urcu_bp_tls();
 	lttng_fixup_ringbuffer_tls();
 	lttng_fixup_vtid_tls();
 	lttng_fixup_nest_count_tls();