X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fchannel.c;h=7ea43b8f39c5b6f0ba5253f018d40dc6fa72f821;hb=00a620843422e5c972aee0ada2181b811fc81b92;hp=817100ff449128e2f71705623d6ac4a39d95e0f4;hpb=ecc48a904cc7c419fd1400afaa9ccb93be490cdd;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/channel.c b/src/bin/lttng-sessiond/channel.c
index 817100ff4..7ea43b8f3 100644
--- a/src/bin/lttng-sessiond/channel.c
+++ b/src/bin/lttng-sessiond/channel.c
@@ -16,6 +16,7 @@
  */
 
 #define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <inttypes.h>
 #include <string.h>
 #include <unistd.h>
@@ -366,7 +367,18 @@ int channel_ust_create(struct ltt_ust_session *usess,
 
 	/* Adding the channel to the channel hash table. */
 	rcu_read_lock();
-	lttng_ht_add_unique_str(usess->domain_global.channels, &uchan->node);
+	if (strncmp(uchan->name, DEFAULT_METADATA_NAME,
+				sizeof(uchan->name))) {
+		lttng_ht_add_unique_str(usess->domain_global.channels, &uchan->node);
+	} else {
+		/*
+		 * Copy channel attribute to session if this is metadata so if NO
+		 * application exists we can access that data in the shadow copy during
+		 * the global update of newly registered application.
+		 */
+		memcpy(&usess->metadata_attr, &uchan->attr,
+				sizeof(usess->metadata_attr));
+	}
 	rcu_read_unlock();
 
 	DBG2("Channel %s created successfully", uchan->name);