X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-context-hostname.c;h=6dc14f9c1cfef5930059172d21ed0ed0fa6f61e0;hb=f1c5a0bbe03c0043e44d64027215ed5c237e98ed;hp=e38340b72ec7bf53f8272ddacac5cf7434212498;hpb=975da2c003441a8a16a36947e9500237c197e91b;p=lttng-modules.git

diff --git a/lttng-context-hostname.c b/lttng-context-hostname.c
index e38340b7..6dc14f9c 100644
--- a/lttng-context-hostname.c
+++ b/lttng-context-hostname.c
@@ -49,8 +49,11 @@ void hostname_record(struct lttng_ctx_field *field,
 	struct uts_namespace *ns;
 	char *hostname;
 
-	rcu_read_lock();
-	nsproxy = task_nsproxy(current);
+	/*
+	 * No need to take the RCU read-side lock to read current
+	 * nsproxy. (documented in nsproxy.h)
+	 */
+	nsproxy = current->nsproxy;
 	if (nsproxy) {
 		ns = nsproxy->uts_ns;
 		hostname = ns->name.nodename;
@@ -60,7 +63,6 @@ void hostname_record(struct lttng_ctx_field *field,
 		chan->ops->event_memset(ctx, 0,
 				LTTNG_HOSTNAME_CTX_LEN);
 	}
-	rcu_read_unlock();
 }
 
 int lttng_add_hostname_to_ctx(struct lttng_ctx **ctx)