2 files changed, 9 insertions, 3 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 39e71b0a3bfd..496eea898ee4 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -113,10 +113,14 @@ void tracing_record_cmdline(struct task_struct *tsk);
 
 struct event_filter;
 
+struct ftrace_event_class {
+        char                    *system;
+};
+
 struct ftrace_event_call {
         struct list_head        list;
+        struct ftrace_event_class *class;
         char                    *name;
-        char                    *system;
         struct dentry           *dir;
         struct trace_event      *event;
         int                     enabled;
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 057929b0a651..ac5791df2506 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -134,6 +134,8 @@ struct perf_event_attr;
 #define __SC_STR_TDECL5(t, a, ...)      #t, __SC_STR_TDECL4(__VA_ARGS__)
 #define __SC_STR_TDECL6(t, a, ...)      #t, __SC_STR_TDECL5(__VA_ARGS__)
 
+extern struct ftrace_event_class event_class_syscalls;
+
 #define SYSCALL_TRACE_ENTER_EVENT(sname)                                \
         static const struct syscall_metadata __syscall_meta_##sname;    \
         static struct ftrace_event_call                                 \
@@ -146,7 +148,7 @@ struct perf_event_attr;
           __attribute__((section("_ftrace_events")))                    \
           event_enter_##sname = {                                       \
                 .name                   = "sys_enter"#sname,            \
-                .system                 = "syscalls",                   \
+                .class                  = &event_class_syscalls,        \
                 .event                  = &enter_syscall_print_##sname, \
                 .raw_init               = init_syscall_trace,           \
                 .define_fields          = syscall_enter_define_fields,  \
@@ -168,7 +170,7 @@ struct perf_event_attr;
           __attribute__((section("_ftrace_events")))                    \
           event_exit_##sname = {                                        \
                 .name                   = "sys_exit"#sname,             \
-                .system                 = "syscalls",                   \
+                .class                  = &event_class_syscalls,        \
                 .event                  = &exit_syscall_print_##sname,  \
                 .raw_init               = init_syscall_trace,           \
                 .define_fields          = syscall_exit_define_fields,   \