Filter: use only single lower bit of filter return value

[lttng-ust.git] / include / lttng / ust-tracepoint-event.h

diff --git a/include/lttng/ust-tracepoint-event.h b/include/lttng/ust-tracepoint-event.h
index 0be3395be7d72996dc7a33645ceabd6048396f9c..8f804d62432eace7d5be6fe8811e017e9b524b3c 100644 (file)
--- a/include/lttng/ust-tracepoint-event.h
+++ b/include/lttng/ust-tracepoint-event.h
@@ -459,6 +459,7 @@ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args))      \
  * each field (worse case). For integers, max size required is 64-bit.
  * Same for double-precision floats. Those fit within
  * 2*sizeof(unsigned long) for all supported architectures.
+ * Perform UNION (||) of filter runtime list.
  */
 #undef TRACEPOINT_EVENT_CLASS
 #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)             \
@@ -486,16 +487,19 @@ void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args))         \
                return;                                                       \
        if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled)))                 \
                return;                                                       \
-       if (caa_unlikely(!cds_list_empty(&__event->bytecode_runtime))) {      \
+       if (caa_unlikely(!cds_list_empty(&__event->bytecode_runtime_head))) { \
                struct lttng_bytecode_runtime *bc_runtime;                    \
+               int __filter_record = 0;                                      \
                                                                              \
                __event_prepare_filter_stack__##_provider##___##_name(__stackvar.__filter_stack_data, \
                        _TP_ARGS_DATA_VAR(_args));                            \
-               cds_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime, node) { \
-                       if (caa_likely(!bc_runtime->filter(bc_runtime,        \
-                                       __stackvar.__filter_stack_data)))     \
-                               return;                                       \
+               cds_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \
+                       if (caa_unlikely(bc_runtime->filter(bc_runtime,       \
+                                       __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \
+                               __filter_record = 1;                          \
                }                                                             \
+               if (caa_likely(!__filter_record))                             \
+                       return;                                               \
        }                                                                     \
        __event_len = __event_get_size__##_provider##___##_name(__stackvar.__dynamic_len, \
                 _TP_ARGS_DATA_VAR(_args));                                   \