From: Steven Rostedt <srostedt@redhat.com>
The raw_init function pointer in the event is used to initialize
various kinds of events. The type of initialization needed is usually
classed to the kind of event it is.
Two events with the same class will always have the same initialization
function, so it makes sense to move this to the class structure.
Perhaps even making a special system structure would work since
the initialization is the same for all events within a system.
But since there's no system structure (yet), this will just move it
to the class.
text data bss dec hex filename
5788186 1337252 9351592 16477030 fb6b66 vmlinux.orig
5774567 1297492 9351592 16423651 fa9ae3 vmlinux.fields
5774510 1293204 9351592 16419306 fa89ea vmlinux.init
The text grew very slightly, but this is a constant growth that happened
with the changing of the C files that call the init code.
The bigger savings is the data which will be saved the more events share
a class.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/ftrace_event.h | 2 +-
include/linux/syscalls.h | 2 --
include/trace/ftrace.h | 8 ++++----
kernel/trace/trace_events.c | 12 ++++++------
kernel/trace/trace_export.c | 2 +-
kernel/trace/trace_kprobe.c | 6 +++---
kernel/trace/trace_syscalls.c | 2 ++
7 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 1e2c8f5..655de69 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -131,6 +131,7 @@ struct ftrace_event_class {
int (*define_fields)(struct ftrace_event_call *);
struct list_head *(*get_fields)(struct ftrace_event_call *);
struct list_head fields;
+ int (*raw_init)(struct ftrace_event_call *);
};
struct ftrace_event_call {
@@ -142,7 +143,6 @@ struct ftrace_event_call {
int enabled;
int id;
const char *print_fmt;
- int (*raw_init)(struct ...
