6 files changed, 15 insertions, 5 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 96efa6794ea5..c3da42dd22ba 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -172,6 +172,7 @@ enum {
         TRACE_EVENT_FL_FILTERED_BIT,
         TRACE_EVENT_FL_RECORDED_CMD_BIT,
         TRACE_EVENT_FL_CAP_ANY_BIT,
+        TRACE_EVENT_FL_NO_SET_FILTER_BIT,
 };
 
 enum {
@@ -179,6 +180,7 @@ enum {
         TRACE_EVENT_FL_FILTERED         = (1 << TRACE_EVENT_FL_FILTERED_BIT),
         TRACE_EVENT_FL_RECORDED_CMD     = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
         TRACE_EVENT_FL_CAP_ANY          = (1 << TRACE_EVENT_FL_CAP_ANY_BIT),
+        TRACE_EVENT_FL_NO_SET_FILTER    = (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
 };
 
 struct ftrace_event_call {
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index bbdfe2a462a0..66ff7109f697 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -66,8 +66,9 @@ void jump_label_inc(struct jump_label_key *key)
                 return;
 
         jump_label_lock();
-        if (atomic_add_return(1, &key->enabled) == 1)
+        if (atomic_read(&key->enabled) == 0)
                 jump_label_update(key, JUMP_LABEL_ENABLE);
+        atomic_inc(&key->enabled);
         jump_label_unlock();
 }
 
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 900b409543db..b1e8943fed1d 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -152,7 +152,6 @@ void clear_ftrace_function(void)
         ftrace_pid_function = ftrace_stub;
 }
 
-#undef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
 #ifndef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
 /*
  * For those archs that do not test ftrace_trace_stop in their
@@ -1212,7 +1211,9 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable,
         if (!src->count) {
                 free_ftrace_hash_rcu(*dst);
                 rcu_assign_pointer(*dst, EMPTY_HASH);
-                return 0;
+                /* still need to update the function records */
+                ret = 0;
+                goto out;
         }
 
         /*
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 581876f9f387..c212a7f934ec 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1078,7 +1078,6 @@ event_subsystem_dir(const char *name, struct dentry *d_events)
         /* First see if we did not already create this dir */
         list_for_each_entry(system, &event_subsystems, list) {
                 if (strcmp(system->name, name) == 0) {
-                        __get_system(system);
                         system->nr_events++;
                         return system->entry;
                 }
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index d6e7926dcd26..95dc31efd6dd 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1649,7 +1649,9 @@ static int replace_system_preds(struct event_subsystem *system,
                  */
                 err = replace_preds(call, NULL, ps, filter_string, true);
                 if (err)
-                        goto fail;
+                        call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
+                else
+                        call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
         }
 
         list_for_each_entry(call, &ftrace_events, list) {
@@ -1658,6 +1660,9 @@ static int replace_system_preds(struct event_subsystem *system,
                 if (strcmp(call->class->system, system->name) != 0)
                         continue;
 
+                if (call->flags & TRACE_EVENT_FL_NO_SET_FILTER)
+                        continue;
+
                 filter_item = kzalloc(sizeof(*filter_item), GFP_KERNEL);
                 if (!filter_item)
                         goto fail_mem;
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 0a7ed5b5e281..6c164dc9ee95 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1537,6 +1537,8 @@ process_flags(struct event *event, struct print_arg *arg, char **tok)
         field = malloc_or_die(sizeof(*field));
 
         type = process_arg(event, field, &token);
+        while (type == EVENT_OP)
+                type = process_op(event, field, &token);
         if (test_type_token(type, token, EVENT_DELIM, ","))
                 goto out_free;