Fix: filter link fail handling

[lttng-ust.git] / liblttng-ust / lttng-filter.c

diff --git a/liblttng-ust/lttng-filter.c b/liblttng-ust/lttng-filter.c
index 4714dad2ad50c1d7d09e0cc3450ee7366c06bbc7..62a745f197c4ddc377a57bcd4eb7404bab21a614 100644 (file)
--- a/liblttng-ust/lttng-filter.c
+++ b/liblttng-ust/lttng-filter.c
@@ -289,12 +289,14 @@ int _lttng_filter_event_link_bytecode(struct lttng_event *event,
                goto link_error;
        }
        runtime->p.filter = lttng_filter_interpret_bytecode;
+       runtime->p.link_failed = 0;
        cds_list_add_rcu(&runtime->p.node, insert_loc);
        dbg_printf("Linking successful.\n");
        return 0;
 
 link_error:
        runtime->p.filter = lttng_filter_false;
+       runtime->p.link_failed = 1;
        cds_list_add_rcu(&runtime->p.node, insert_loc);
        dbg_printf("Linking failed.\n");
        return ret;
@@ -304,10 +306,10 @@ void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime)
 {
        struct lttng_ust_filter_bytecode_node *bc = runtime->bc;
 
-       if (bc->enabler->enabled)
-               runtime->filter = lttng_filter_interpret_bytecode;
-       else
+       if (!bc->enabler->enabled || runtime->link_failed)
                runtime->filter = lttng_filter_false;
+       else
+               runtime->filter = lttng_filter_interpret_bytecode;
 }
 
 /*