15 files changed, 264 insertions, 102 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 5eaa746735ff..9abbe630c456 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -202,6 +202,7 @@ enum {
         TRACE_EVENT_FL_NO_SET_FILTER_BIT,
         TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
         TRACE_EVENT_FL_WAS_ENABLED_BIT,
+        TRACE_EVENT_FL_USE_CALL_FILTER_BIT,
 };
 
 /*
@@ -213,6 +214,7 @@ enum {
  *  WAS_ENABLED   - Set and stays set when an event was ever enabled
  *                    (used for module unloading, if a module event is enabled,
  *                     it is best to clear the buffers that used it).
+ *  USE_CALL_FILTER - For ftrace internal events, don't use file filter
  */
 enum {
         TRACE_EVENT_FL_FILTERED         = (1 << TRACE_EVENT_FL_FILTERED_BIT),
@@ -220,6 +222,7 @@ enum {
         TRACE_EVENT_FL_NO_SET_FILTER    = (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
         TRACE_EVENT_FL_IGNORE_ENABLE    = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
         TRACE_EVENT_FL_WAS_ENABLED      = (1 << TRACE_EVENT_FL_WAS_ENABLED_BIT),
+        TRACE_EVENT_FL_USE_CALL_FILTER  = (1 << TRACE_EVENT_FL_USE_CALL_FILTER_BIT),
 };
 
 struct ftrace_event_call {
@@ -238,6 +241,7 @@ struct ftrace_event_call {
          *   bit 2:             failed to apply filter
          *   bit 3:             ftrace internal event (do not enable)
          *   bit 4:             Event was enabled by module
+         *   bit 5:             use call filter rather than file filter
          */
         int                     flags; /* static flags of different events */
 
@@ -253,6 +257,8 @@ struct ftrace_subsystem_dir;
 enum {
         FTRACE_EVENT_FL_ENABLED_BIT,
         FTRACE_EVENT_FL_RECORDED_CMD_BIT,
+        FTRACE_EVENT_FL_FILTERED_BIT,
+        FTRACE_EVENT_FL_NO_SET_FILTER_BIT,
         FTRACE_EVENT_FL_SOFT_MODE_BIT,
         FTRACE_EVENT_FL_SOFT_DISABLED_BIT,
 };
@@ -261,6 +267,8 @@ enum {
  * Ftrace event file flags:
  *  ENABLED       - The event is enabled
  *  RECORDED_CMD  - The comms should be recorded at sched_switch
+ *  FILTERED      - The event has a filter attached
+ *  NO_SET_FILTER - Set when filter has error and is to be ignored
  *  SOFT_MODE     - The event is enabled/disabled by SOFT_DISABLED
  *  SOFT_DISABLED - When set, do not trace the event (even though its
  *                   tracepoint may be enabled)
@@ -268,6 +276,8 @@ enum {
 enum {
         FTRACE_EVENT_FL_ENABLED         = (1 << FTRACE_EVENT_FL_ENABLED_BIT),
         FTRACE_EVENT_FL_RECORDED_CMD    = (1 << FTRACE_EVENT_FL_RECORDED_CMD_BIT),
+        FTRACE_EVENT_FL_FILTERED        = (1 << FTRACE_EVENT_FL_FILTERED_BIT),
+        FTRACE_EVENT_FL_NO_SET_FILTER   = (1 << FTRACE_EVENT_FL_NO_SET_FILTER_BIT),
         FTRACE_EVENT_FL_SOFT_MODE       = (1 << FTRACE_EVENT_FL_SOFT_MODE_BIT),
         FTRACE_EVENT_FL_SOFT_DISABLED   = (1 << FTRACE_EVENT_FL_SOFT_DISABLED_BIT),
 };
@@ -275,6 +285,7 @@ enum {
 struct ftrace_event_file {
         struct list_head                list;
         struct ftrace_event_call        *event_call;
+        struct event_filter             *filter;
         struct dentry                   *dir;
         struct trace_array              *tr;
         struct ftrace_subsystem_dir     *system;
@@ -310,12 +321,16 @@ struct ftrace_event_file {
 
 #define MAX_FILTER_STR_VAL      256     /* Should handle KSYM_SYMBOL_LEN */
 
-extern void destroy_preds(struct ftrace_event_call *call);
+extern void destroy_preds(struct ftrace_event_file *file);
+extern void destroy_call_preds(struct ftrace_event_call *call);
 extern int filter_match_preds(struct event_filter *filter, void *rec);
-extern int filter_current_check_discard(struct ring_buffer *buffer,
-                                        struct ftrace_event_call *call,
-                                        void *rec,
-                                        struct ring_buffer_event *event);
+
+extern int filter_check_discard(struct ftrace_event_file *file, void *rec,
+                                struct ring_buffer *buffer,
+                                struct ring_buffer_event *event);
+extern int call_filter_check_discard(struct ftrace_event_call *call, void *rec,
+                                     struct ring_buffer *buffer,
+                                     struct ring_buffer_event *event);
 
 enum {
         FILTER_OTHER = 0,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 7fac04e7ff6e..10bafa97049d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -120,7 +120,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .class                  = &event_class_syscall_enter,   \
                 .event.funcs            = &enter_syscall_print_funcs,   \
                 .data                   = (void *)&__syscall_meta_##sname,\
-                .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
+                .flags                  = TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
         };                                                              \
         static struct ftrace_event_call __used                          \
           __attribute__((section("_ftrace_events")))                    \
@@ -134,7 +134,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
                 .class                  = &event_class_syscall_exit,    \
                 .event.funcs            = &exit_syscall_print_funcs,    \
                 .data                   = (void *)&__syscall_meta_##sname,\
-                .flags                  = TRACE_EVENT_FL_CAP_ANY,       \
+                .flags                  = TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
         };                                                              \
         static struct ftrace_event_call __used                          \
           __attribute__((section("_ftrace_events")))                    \
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 5c7ab17cbb02..52594b20179e 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -437,9 +437,8 @@ static inline notrace int ftrace_get_offsets_##call(			\
  *      { <assign>; }  <-- Here we assign the entries by the __field and
  *                         __array macros.
  *
- *      if (!filter_current_check_discard(buffer, event_call, entry, event))
- *              trace_nowake_buffer_unlock_commit(buffer,
- *                                                 event, irq_flags, pc);
+ *      if (!filter_check_discard(ftrace_file, entry, buffer, event))
+ *              trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
  * }
  *
  * static struct trace_event ftrace_event_type_<call> = {
@@ -553,7 +552,7 @@ ftrace_raw_event_##call(void *__data, proto)				\
                                                                         \
         { assign; }                                                     \
                                                                         \
-        if (!filter_current_check_discard(buffer, event_call, entry, event)) \
+        if (!filter_check_discard(ftrace_file, entry, buffer, event))   \
                 trace_buffer_unlock_commit(buffer, event, irq_flags, pc); \
 }
 /*
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 063a92bad578..489da8b19f30 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -235,13 +235,33 @@ void trace_array_put(struct trace_array *this_tr)
         mutex_unlock(&trace_types_lock);
 }
 
-int filter_current_check_discard(struct ring_buffer *buffer,
-                                 struct ftrace_event_call *call, void *rec,
-                                 struct ring_buffer_event *event)
+int filter_check_discard(struct ftrace_event_file *file, void *rec,
+                         struct ring_buffer *buffer,
+                         struct ring_buffer_event *event)
 {
-        return filter_check_discard(call, rec, buffer, event);
+        if (unlikely(file->flags & FTRACE_EVENT_FL_FILTERED) &&
+            !filter_match_preds(file->filter, rec)) {
+                ring_buffer_discard_commit(buffer, event);
+                return 1;
+        }
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(filter_check_discard);
+
+int call_filter_check_discard(struct ftrace_event_call *call, void *rec,
+                              struct ring_buffer *buffer,
+                              struct ring_buffer_event *event)
+{
+        if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) &&
+            !filter_match_preds(call->filter, rec)) {
+                ring_buffer_discard_commit(buffer, event);
+                return 1;
+        }
+
+        return 0;
 }
-EXPORT_SYMBOL_GPL(filter_current_check_discard);
+EXPORT_SYMBOL_GPL(call_filter_check_discard);
 
 cycle_t buffer_ftrace_now(struct trace_buffer *buf, int cpu)
 {
@@ -1633,7 +1653,7 @@ trace_function(struct trace_array *tr,
         entry->ip                       = ip;
         entry->parent_ip                = parent_ip;
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 }
 
@@ -1717,7 +1737,7 @@ static void __ftrace_trace_stack(struct ring_buffer *buffer,
 
         entry->size = trace.nr_entries;
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 
  out:
@@ -1819,7 +1839,7 @@ ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc)
         trace.entries           = entry->caller;
 
         save_stack_trace_user(&trace);
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 
  out_drop_count:
@@ -2011,7 +2031,7 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args)
         entry->fmt                      = fmt;
 
         memcpy(entry->buf, tbuffer, sizeof(u32) * len);
-        if (!filter_check_discard(call, entry, buffer, event)) {
+        if (!call_filter_check_discard(call, entry, buffer, event)) {
                 __buffer_unlock_commit(buffer, event);
                 ftrace_trace_stack(buffer, flags, 6, pc);
         }
@@ -2066,7 +2086,7 @@ __trace_array_vprintk(struct ring_buffer *buffer,
 
         memcpy(&entry->buf, tbuffer, len);
         entry->buf[len] = '\0';
-        if (!filter_check_discard(call, entry, buffer, event)) {
+        if (!call_filter_check_discard(call, entry, buffer, event)) {
                 __buffer_unlock_commit(buffer, event);
                 ftrace_trace_stack(buffer, flags, 6, pc);
         }
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d1cf5159bec0..12d1a612a73e 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1007,9 +1007,9 @@ struct filter_pred {
 
 extern enum regex_type
 filter_parse_regex(char *buff, int len, char **search, int *not);
-extern void print_event_filter(struct ftrace_event_call *call,
+extern void print_event_filter(struct ftrace_event_file *file,
                                struct trace_seq *s);
-extern int apply_event_filter(struct ftrace_event_call *call,
+extern int apply_event_filter(struct ftrace_event_file *file,
                               char *filter_string);
 extern int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
                                         char *filter_string);
@@ -1020,20 +1020,6 @@ extern int filter_assign_type(const char *type);
 struct ftrace_event_field *
 trace_find_event_field(struct ftrace_event_call *call, char *name);
 
-static inline int
-filter_check_discard(struct ftrace_event_call *call, void *rec,
-                     struct ring_buffer *buffer,
-                     struct ring_buffer_event *event)
-{
-        if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) &&
-            !filter_match_preds(call->filter, rec)) {
-                ring_buffer_discard_commit(buffer, event);
-                return 1;
-        }
-
-        return 0;
-}
-
 extern void trace_event_enable_cmd_record(bool enable);
 extern int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr);
 extern int event_trace_del_tracer(struct trace_array *tr);
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index d594da0dc03c..697fb9bac8f0 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -78,7 +78,7 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
         entry->line = f->line;
         entry->correct = val == expect;
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 
  out:
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 368a4d50cc30..043f833246a0 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -989,7 +989,7 @@ static ssize_t
 event_filter_read(struct file *filp, char __user *ubuf, size_t cnt,
                   loff_t *ppos)
 {
-        struct ftrace_event_call *call;
+        struct ftrace_event_file *file;
         struct trace_seq *s;
         int r = -ENODEV;
 
@@ -1004,12 +1004,12 @@ event_filter_read(struct file *filp, char __user *ubuf, size_t cnt,
         trace_seq_init(s);
 
         mutex_lock(&event_mutex);
-        call = event_file_data(filp);
-        if (call)
-                print_event_filter(call, s);
+        file = event_file_data(filp);
+        if (file)
+                print_event_filter(file, s);
         mutex_unlock(&event_mutex);
 
-        if (call)
+        if (file)
                 r = simple_read_from_buffer(ubuf, cnt, ppos, s->buffer, s->len);
 
         kfree(s);
@@ -1021,7 +1021,7 @@ static ssize_t
 event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
                    loff_t *ppos)
 {
-        struct ftrace_event_call *call;
+        struct ftrace_event_file *file;
         char *buf;
         int err = -ENODEV;
 
@@ -1039,9 +1039,9 @@ event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
         buf[cnt] = '\0';
 
         mutex_lock(&event_mutex);
-        call = event_file_data(filp);
-        if (call)
-                err = apply_event_filter(call, buf);
+        file = event_file_data(filp);
+        if (file)
+                err = apply_event_filter(file, buf);
         mutex_unlock(&event_mutex);
 
         free_page((unsigned long) buf);
@@ -1539,7 +1539,7 @@ event_create_dir(struct dentry *parent, struct ftrace_event_file *file)
                         return -1;
                 }
         }
-        trace_create_file("filter", 0644, file->dir, call,
+        trace_create_file("filter", 0644, file->dir, file,
                           &ftrace_event_filter_fops);
 
         trace_create_file("format", 0444, file->dir, call,
@@ -1577,6 +1577,7 @@ static void event_remove(struct ftrace_event_call *call)
                 if (file->event_call != call)
                         continue;
                 ftrace_event_enable_disable(file, 0);
+                destroy_preds(file);
                 /*
                  * The do_for_each_event_file() is
                  * a double loop. After finding the call for this
@@ -1700,7 +1701,7 @@ static void __trace_remove_event_call(struct ftrace_event_call *call)
 {
         event_remove(call);
         trace_destroy_fields(call);
-        destroy_preds(call);
+        destroy_call_preds(call);
 }
 
 static int probe_remove_event_call(struct ftrace_event_call *call)
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 97daa8cf958d..2468f56dc5db 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -637,10 +637,18 @@ static void append_filter_err(struct filter_parse_state *ps,
         free_page((unsigned long) buf);
 }
 
+static inline struct event_filter *event_filter(struct ftrace_event_file *file)
+{
+        if (file->event_call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                return file->event_call->filter;
+        else
+                return file->filter;
+}
+
 /* caller must hold event_mutex */
-void print_event_filter(struct ftrace_event_call *call, struct trace_seq *s)
+void print_event_filter(struct ftrace_event_file *file, struct trace_seq *s)
 {
-        struct event_filter *filter = call->filter;
+        struct event_filter *filter = event_filter(file);
 
         if (filter && filter->filter_string)
                 trace_seq_printf(s, "%s\n", filter->filter_string);
@@ -766,11 +774,21 @@ static void __free_preds(struct event_filter *filter)
         filter->n_preds = 0;
 }
 
-static void filter_disable(struct ftrace_event_call *call)
+static void call_filter_disable(struct ftrace_event_call *call)
 {
         call->flags &= ~TRACE_EVENT_FL_FILTERED;
 }
 
+static void filter_disable(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                call_filter_disable(call);
+        else
+                file->flags &= ~FTRACE_EVENT_FL_FILTERED;
+}
+
 static void __free_filter(struct event_filter *filter)
 {
         if (!filter)
@@ -781,16 +799,30 @@ static void __free_filter(struct event_filter *filter)
         kfree(filter);
 }
 
+void destroy_call_preds(struct ftrace_event_call *call)
+{
+        __free_filter(call->filter);
+        call->filter = NULL;
+}
+
+static void destroy_file_preds(struct ftrace_event_file *file)
+{
+        __free_filter(file->filter);
+        file->filter = NULL;
+}
+
 /*
- * Called when destroying the ftrace_event_call.
- * The call is being freed, so we do not need to worry about
- * the call being currently used. This is for module code removing
+ * Called when destroying the ftrace_event_file.
+ * The file is being freed, so we do not need to worry about
+ * the file being currently used. This is for module code removing
  * the tracepoints from within it.
  */
-void destroy_preds(struct ftrace_event_call *call)
+void destroy_preds(struct ftrace_event_file *file)
 {
-        __free_filter(call->filter);
-        call->filter = NULL;
+        if (file->event_call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                destroy_call_preds(file->event_call);
+        else
+                destroy_file_preds(file);
 }
 
 static struct event_filter *__alloc_filter(void)
@@ -825,28 +857,56 @@ static int __alloc_preds(struct event_filter *filter, int n_preds)
         return 0;
 }
 
-static void filter_free_subsystem_preds(struct event_subsystem *system)
+static inline void __remove_filter(struct ftrace_event_file *file)
 {
+        struct ftrace_event_call *call = file->event_call;
+
+        filter_disable(file);
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                remove_filter_string(call->filter);
+        else
+                remove_filter_string(file->filter);
+}
+
+static void filter_free_subsystem_preds(struct event_subsystem *system,
+                                        struct trace_array *tr)
+{
+        struct ftrace_event_file *file;
         struct ftrace_event_call *call;
 
-        list_for_each_entry(call, &ftrace_events, list) {
+        list_for_each_entry(file, &tr->events, list) {
+                call = file->event_call;
                 if (strcmp(call->class->system, system->name) != 0)
                         continue;
 
-                filter_disable(call);
-                remove_filter_string(call->filter);
+                __remove_filter(file);
         }
 }
 
-static void filter_free_subsystem_filters(struct event_subsystem *system)
+static inline void __free_subsystem_filter(struct ftrace_event_file *file)
 {
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) {
+                __free_filter(call->filter);
+                call->filter = NULL;
+        } else {
+                __free_filter(file->filter);
+                file->filter = NULL;
+        }
+}
+
+static void filter_free_subsystem_filters(struct event_subsystem *system,
+                                          struct trace_array *tr)
+{
+        struct ftrace_event_file *file;
         struct ftrace_event_call *call;
 
-        list_for_each_entry(call, &ftrace_events, list) {
+        list_for_each_entry(file, &tr->events, list) {
+                call = file->event_call;
                 if (strcmp(call->class->system, system->name) != 0)
                         continue;
-                __free_filter(call->filter);
-                call->filter = NULL;
+                __free_subsystem_filter(file);
         }
 }
 
@@ -1617,15 +1677,85 @@ fail:
         return err;
 }
 
+static inline void event_set_filtered_flag(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                call->flags |= TRACE_EVENT_FL_FILTERED;
+        else
+                file->flags |= FTRACE_EVENT_FL_FILTERED;
+}
+
+static inline void event_set_filter(struct ftrace_event_file *file,
+                                    struct event_filter *filter)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                rcu_assign_pointer(call->filter, filter);
+        else
+                rcu_assign_pointer(file->filter, filter);
+}
+
+static inline void event_clear_filter(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                RCU_INIT_POINTER(call->filter, NULL);
+        else
+                RCU_INIT_POINTER(file->filter, NULL);
+}
+
+static inline void
+event_set_no_set_filter_flag(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
+        else
+                file->flags |= FTRACE_EVENT_FL_NO_SET_FILTER;
+}
+
+static inline void
+event_clear_no_set_filter_flag(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+                call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
+        else
+                file->flags &= ~FTRACE_EVENT_FL_NO_SET_FILTER;
+}
+
+static inline bool
+event_no_set_filter_flag(struct ftrace_event_file *file)
+{
+        struct ftrace_event_call *call = file->event_call;
+
+        if (file->flags & FTRACE_EVENT_FL_NO_SET_FILTER)
+                return true;
+
+        if ((call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) &&
+            (call->flags & TRACE_EVENT_FL_NO_SET_FILTER))
+                return true;
+
+        return false;
+}
+
 struct filter_list {
         struct list_head        list;
         struct event_filter     *filter;
 };
 
 static int replace_system_preds(struct event_subsystem *system,
+                                struct trace_array *tr,
                                 struct filter_parse_state *ps,
                                 char *filter_string)
 {
+        struct ftrace_event_file *file;
         struct ftrace_event_call *call;
         struct filter_list *filter_item;
         struct filter_list *tmp;
@@ -1633,8 +1763,8 @@ static int replace_system_preds(struct event_subsystem *system,
         bool fail = true;
         int err;
 
-        list_for_each_entry(call, &ftrace_events, list) {
-
+        list_for_each_entry(file, &tr->events, list) {
+                call = file->event_call;
                 if (strcmp(call->class->system, system->name) != 0)
                         continue;
 
@@ -1644,18 +1774,20 @@ static int replace_system_preds(struct event_subsystem *system,
                  */
                 err = replace_preds(call, NULL, ps, filter_string, true);
                 if (err)
-                        call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
+                        event_set_no_set_filter_flag(file);
                 else
-                        call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
+                        event_clear_no_set_filter_flag(file);
         }
 
-        list_for_each_entry(call, &ftrace_events, list) {
+        list_for_each_entry(file, &tr->events, list) {
                 struct event_filter *filter;
 
+                call = file->event_call;
+
                 if (strcmp(call->class->system, system->name) != 0)
                         continue;
 
-                if (call->flags & TRACE_EVENT_FL_NO_SET_FILTER)
+                if (event_no_set_filter_flag(file))
                         continue;
 
                 filter_item = kzalloc(sizeof(*filter_item), GFP_KERNEL);
@@ -1676,17 +1808,17 @@ static int replace_system_preds(struct event_subsystem *system,
 
                 err = replace_preds(call, filter, ps, filter_string, false);
                 if (err) {
-                        filter_disable(call);
+                        filter_disable(file);
                         parse_error(ps, FILT_ERR_BAD_SUBSYS_FILTER, 0);
                         append_filter_err(ps, filter);
                 } else
-                        call->flags |= TRACE_EVENT_FL_FILTERED;
+                        event_set_filtered_flag(file);
                 /*
                  * Regardless of if this returned an error, we still
                  * replace the filter for the call.
                  */
-                filter = call->filter;
-                rcu_assign_pointer(call->filter, filter_item->filter);
+                filter = event_filter(file);
+                event_set_filter(file, filter_item->filter);
                 filter_item->filter = filter;
 
                 fail = false;
@@ -1816,6 +1948,7 @@ static int create_filter(struct ftrace_event_call *call,
  * and always remembers @filter_str.
  */
 static int create_system_filter(struct event_subsystem *system,
+                                struct trace_array *tr,
                                 char *filter_str, struct event_filter **filterp)
 {
         struct event_filter *filter = NULL;
@@ -1824,7 +1957,7 @@ static int create_system_filter(struct event_subsystem *system,
 
         err = create_filter_start(filter_str, true, &ps, &filter);
         if (!err) {
-                err = replace_system_preds(system, ps, filter_str);
+                err = replace_system_preds(system, tr, ps, filter_str);
                 if (!err) {
                         /* System filters just show a default message */
                         kfree(filter->filter_string);
@@ -1840,20 +1973,25 @@ static int create_system_filter(struct event_subsystem *system,
 }
 
 /* caller must hold event_mutex */
-int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
+int apply_event_filter(struct ftrace_event_file *file, char *filter_string)
 {
+        struct ftrace_event_call *call = file->event_call;
         struct event_filter *filter;
         int err;
 
         if (!strcmp(strstrip(filter_string), "0")) {
-                filter_disable(call);
-                filter = call->filter;
+                filter_disable(file);
+                filter = event_filter(file);
+
                 if (!filter)
                         return 0;
-                RCU_INIT_POINTER(call->filter, NULL);
+
+                event_clear_filter(file);
+
                 /* Make sure the filter is not being used */
                 synchronize_sched();
                 __free_filter(filter);
+
                 return 0;
         }
 
@@ -1866,14 +2004,15 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
          * string
          */
         if (filter) {
-                struct event_filter *tmp = call->filter;
+                struct event_filter *tmp;
 
+                tmp = event_filter(file);
                 if (!err)
-                        call->flags |= TRACE_EVENT_FL_FILTERED;
+                        event_set_filtered_flag(file);
                 else
-                        filter_disable(call);
+                        filter_disable(file);
 
-                rcu_assign_pointer(call->filter, filter);
+                event_set_filter(file, filter);
 
                 if (tmp) {
                         /* Make sure the call is done with the filter */
@@ -1889,6 +2028,7 @@ int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
                                  char *filter_string)
 {
         struct event_subsystem *system = dir->subsystem;
+        struct trace_array *tr = dir->tr;
         struct event_filter *filter;
         int err = 0;
 
@@ -1901,18 +2041,18 @@ int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
         }
 
         if (!strcmp(strstrip(filter_string), "0")) {
-                filter_free_subsystem_preds(system);
+                filter_free_subsystem_preds(system, tr);
                 remove_filter_string(system->filter);
                 filter = system->filter;
                 system->filter = NULL;
                 /* Ensure all filters are no longer used */
                 synchronize_sched();
-                filter_free_subsystem_filters(system);
+                filter_free_subsystem_filters(system, tr);
                 __free_filter(filter);
                 goto out_unlock;
         }
 
-        err = create_system_filter(system, filter_string, &filter);
+        err = create_system_filter(system, tr, filter_string, &filter);
         if (filter) {
                 /*
                  * No event actually uses the system filter
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index d21a74670088..7c3e3e72e2b6 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -180,7 +180,7 @@ struct ftrace_event_call __used event_##call = {			\
         .event.type             = etype,                                \
         .class                  = &event_class_ftrace_##call,           \
         .print_fmt              = print,                                \
-        .flags                  = TRACE_EVENT_FL_IGNORE_ENABLE,         \
+        .flags                  = TRACE_EVENT_FL_IGNORE_ENABLE | TRACE_EVENT_FL_USE_CALL_FILTER, \
 };                                                                      \
 struct ftrace_event_call __used                                         \
 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call;
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index e08c030b8f38..80387d1d27e1 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -270,7 +270,7 @@ int __trace_graph_entry(struct trace_array *tr,
                 return 0;
         entry   = ring_buffer_event_data(event);
         entry->graph_ent                        = *trace;
-        if (!filter_current_check_discard(buffer, call, entry, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 
         return 1;
@@ -385,7 +385,7 @@ void __trace_graph_return(struct trace_array *tr,
                 return;
         entry   = ring_buffer_event_data(event);
         entry->ret                              = *trace;
-        if (!filter_current_check_discard(buffer, call, entry, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 __buffer_unlock_commit(buffer, event);
 }
 
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 243f6834d026..dae9541ada9e 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -835,7 +835,7 @@ __kprobe_trace_func(struct trace_probe *tp, struct pt_regs *regs,
         entry->ip = (unsigned long)tp->rp.kp.addr;
         store_trace_args(sizeof(*entry), tp, regs, (u8 *)&entry[1], dsize);
 
-        if (!filter_current_check_discard(buffer, call, entry, event))
+        if (!filter_check_discard(ftrace_file, entry, buffer, event))
                 trace_buffer_unlock_commit_regs(buffer, event,
                                                 irq_flags, pc, regs);
 }
@@ -884,7 +884,7 @@ __kretprobe_trace_func(struct trace_probe *tp, struct kretprobe_instance *ri,
         entry->ret_ip = (unsigned long)ri->ret_addr;
         store_trace_args(sizeof(*entry), tp, regs, (u8 *)&entry[1], dsize);
 
-        if (!filter_current_check_discard(buffer, call, entry, event))
+        if (!filter_check_discard(ftrace_file, entry, buffer, event))
                 trace_buffer_unlock_commit_regs(buffer, event,
                                                 irq_flags, pc, regs);
 }
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index b3dcfb2f0fef..0abd9b863474 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -323,7 +323,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
         entry   = ring_buffer_event_data(event);
         entry->rw                       = *rw;
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 trace_buffer_unlock_commit(buffer, event, 0, pc);
 }
 
@@ -353,7 +353,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
         entry   = ring_buffer_event_data(event);
         entry->map                      = *map;
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 trace_buffer_unlock_commit(buffer, event, 0, pc);
 }
 
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 4e98e3b257a3..3f34dc9b40f3 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -45,7 +45,7 @@ tracing_sched_switch_trace(struct trace_array *tr,
         entry->next_state               = next->state;
         entry->next_cpu = task_cpu(next);
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 trace_buffer_unlock_commit(buffer, event, flags, pc);
 }
 
@@ -101,7 +101,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
         entry->next_state               = wakee->state;
         entry->next_cpu                 = task_cpu(wakee);
 
-        if (!filter_check_discard(call, entry, buffer, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 trace_buffer_unlock_commit(buffer, event, flags, pc);
 }
 
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 559329d9bd2f..32644eece429 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -336,8 +336,8 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
         entry->nr = syscall_nr;
         syscall_get_arguments(current, regs, 0, sys_data->nb_args, entry->args);
 
-        if (!filter_current_check_discard(buffer, sys_data->enter_event,
-                                          entry, event))
+        if (!call_filter_check_discard(sys_data->enter_event, entry,
+                                       buffer, event))
                 trace_current_buffer_unlock_commit(buffer, event,
                                                    irq_flags, pc);
 }
@@ -377,8 +377,8 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret)
         entry->nr = syscall_nr;
         entry->ret = syscall_get_return_value(current, regs);
 
-        if (!filter_current_check_discard(buffer, sys_data->exit_event,
-                                          entry, event))
+        if (!call_filter_check_discard(sys_data->exit_event, entry,
+                                       buffer, event))
                 trace_current_buffer_unlock_commit(buffer, event,
                                                    irq_flags, pc);
 }
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 272261b5f94f..b6dcc42ef7f5 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -128,6 +128,7 @@ alloc_trace_uprobe(const char *group, const char *event, int nargs, bool is_ret)
         if (is_ret)
                 tu->consumer.ret_handler = uretprobe_dispatcher;
         init_trace_uprobe_filter(&tu->filter);
+        tu->call.flags |= TRACE_EVENT_FL_USE_CALL_FILTER;
         return tu;
 
 error:
@@ -561,7 +562,7 @@ static void uprobe_trace_print(struct trace_uprobe *tu,
         for (i = 0; i < tu->nr_args; i++)
                 call_fetch(&tu->args[i].fetch, regs, data + tu->args[i].offset);
 
-        if (!filter_current_check_discard(buffer, call, entry, event))
+        if (!call_filter_check_discard(call, entry, buffer, event))
                 trace_buffer_unlock_commit(buffer, event, 0, 0);
 }