Cleanup: no need to hold RCU read-side lock when reading current nsproxy

[lttng-modules.git] / lttng-events.c

diff --git a/lttng-events.c b/lttng-events.c
index 7a1be7295a7ef33d1e61f692d9a2926c0ed03d77..220178f71c96e565d64122e12fa856344e542b17 100644 (file)
--- a/lttng-events.c
+++ b/lttng-events.c
@@ -903,7 +903,6 @@ int _lttng_session_metadata_statedump(struct lttng_session *session)
        unsigned char uuid_s[37], clock_uuid_s[BOOT_ID_LEN];
        struct lttng_channel *chan;
        struct lttng_event *event;
-       char hostname[__NEW_UTS_LEN + 1];
        int ret = 0;
 
        if (!ACCESS_ONCE(session->active))
@@ -960,11 +959,6 @@ int _lttng_session_metadata_statedump(struct lttng_session *session)
        if (ret)
                goto end;
 
-       rcu_read_lock();
-       memcpy(hostname, task_nsproxy(current)->uts_ns->name.nodename,
-               sizeof(hostname));
-       rcu_read_unlock();
-
        ret = lttng_metadata_printf(session,
                "env {\n"
                "       hostname = \"%s\";\n"
@@ -977,7 +971,7 @@ int _lttng_session_metadata_statedump(struct lttng_session *session)
                "       tracer_minor = %d;\n"
                "       tracer_patchlevel = %d;\n"
                "};\n\n",
-               hostname,
+               current->nsproxy->uts_ns->name.nodename,
                utsname()->sysname,
                utsname()->release,
                utsname()->version,