X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-ust-comm.c;h=4d8519789469b988de3f745018ca8fa39bc28963;hb=48a80fd7ff69348ab7f9b97ed2db9befe745f247;hp=bd9d0e9c004863e93509d36953733c63975e5162;hpb=cbd04414ccdd5340b6d323fb57ed50bfa44f62c2;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index bd9d0e9c..4d851978 100644
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -86,6 +86,8 @@ static int initialized;
  *
  * ust_lock nests within the dynamic loader lock (within glibc) because
  * it is taken within the library constructor.
+ *
+ * The ust fd tracker lock nests within the ust_mutex.
  */
 static pthread_mutex_t ust_mutex = PTHREAD_MUTEX_INITIALIZER;
 
@@ -2065,6 +2067,7 @@ void ust_before_fork(sigset_t *save_sigset)
 
 	ust_lock_nocheck();
 	rcu_bp_before_fork();
+	lttng_ust_lock_fd_tracker();
 }
 
 static void ust_after_fork_common(sigset_t *restore_sigset)
@@ -2072,6 +2075,7 @@ static void ust_after_fork_common(sigset_t *restore_sigset)
 	int ret;
 
 	DBG("process %d", getpid());
+	lttng_ust_unlock_fd_tracker();
 	ust_unlock();
 
 	pthread_mutex_unlock(&ust_fork_mutex);