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Date: Tue, 01 Dec 2009 16:23:36 +0800
From: Lai Jiangshan <laijs@...fujitsu.com>
To: Steven Rostedt <rostedt@...dmis.org>, Ingo Molnar <mingo@...e.hu>,
Jason Baron <jbaron@...hat.com>,
Frederic Weisbecker <fweisbec@...il.com>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/7] trace_syscalls: remove enter_id exit_id
use ->enter_event->id instead of ->enter_id
use ->exit_event->id instead of ->exit_id
Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d3c9fd0..b9af875 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -168,7 +168,6 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *unused) \
if (!id) \
return -ENODEV; \
event_enter_##sname.id = id; \
- set_syscall_enter_id(num, id); \
INIT_LIST_HEAD(&event_enter_##sname.fields); \
return 0; \
} \
@@ -205,7 +204,6 @@ static void prof_sysexit_disable_##sname(struct ftrace_event_call *unused) \
if (!id) \
return -ENODEV; \
event_exit_##sname.id = id; \
- set_syscall_exit_id(num, id); \
INIT_LIST_HEAD(&event_exit_##sname.fields); \
return 0; \
} \
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index c5265c8..ca09561 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -15,8 +15,6 @@
* @nb_args: number of parameters it takes
* @types: list of types as strings
* @args: list of args as strings (args[i] matches types[i])
- * @enter_id: associated ftrace enter event id
- * @exit_id: associated ftrace exit event id
* @enter_event: associated syscall_enter trace event
* @exit_event: associated syscall_exit trace event
*/
@@ -25,8 +23,6 @@ struct syscall_metadata {
int nb_args;
const char **types;
const char **args;
- int enter_id;
- int exit_id;
struct ftrace_event_call *enter_event;
struct ftrace_event_call *exit_event;
@@ -35,8 +31,6 @@ struct syscall_metadata {
#ifdef CONFIG_FTRACE_SYSCALLS
extern unsigned long arch_syscall_addr(int nr);
extern int syscall_name_to_nr(const char *name);
-void set_syscall_enter_id(int num, int id);
-void set_syscall_exit_id(int num, int id);
extern int syscall_enter_format(struct ftrace_event_call *call,
struct trace_seq *s);
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 39649b1..27eb18d 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -67,16 +67,6 @@ int syscall_name_to_nr(const char *name)
return -1;
}
-void set_syscall_enter_id(int num, int id)
-{
- syscalls_metadata[num]->enter_id = id;
-}
-
-void set_syscall_exit_id(int num, int id)
-{
- syscalls_metadata[num]->exit_id = id;
-}
-
enum print_line_t
print_syscall_enter(struct trace_iterator *iter, int flags)
{
@@ -93,7 +83,7 @@ print_syscall_enter(struct trace_iterator *iter, int flags)
if (!entry)
goto end;
- if (entry->enter_id != ent->type) {
+ if (entry->enter_event->id != ent->type) {
WARN_ON_ONCE(1);
goto end;
}
@@ -148,7 +138,7 @@ print_syscall_exit(struct trace_iterator *iter, int flags)
return TRACE_TYPE_HANDLED;
}
- if (entry->exit_id != ent->type) {
+ if (entry->exit_event->id != ent->type) {
WARN_ON_ONCE(1);
return TRACE_TYPE_UNHANDLED;
}
@@ -302,8 +292,8 @@ void ftrace_syscall_enter(struct pt_regs *regs, long id)
size = sizeof(*entry) + sizeof(unsigned long) * sys_data->nb_args;
- event = trace_current_buffer_lock_reserve(&buffer, sys_data->enter_id,
- size, 0, 0);
+ event = trace_current_buffer_lock_reserve(&buffer,
+ sys_data->enter_event->id, size, 0, 0);
if (!event)
return;
@@ -334,8 +324,8 @@ void ftrace_syscall_exit(struct pt_regs *regs, long ret)
if (!sys_data)
return;
- event = trace_current_buffer_lock_reserve(&buffer, sys_data->exit_id,
- sizeof(*entry), 0, 0);
+ event = trace_current_buffer_lock_reserve(&buffer,
+ sys_data->exit_event->id, sizeof(*entry), 0, 0);
if (!event)
return;
@@ -510,11 +500,11 @@ static void prof_syscall_enter(struct pt_regs *regs, long id)
rec = (struct syscall_trace_enter *) raw_data;
tracing_generic_entry_update(&rec->ent, 0, 0);
- rec->ent.type = sys_data->enter_id;
+ rec->ent.type = sys_data->enter_event->id;
rec->nr = syscall_nr;
syscall_get_arguments(current, regs, 0, sys_data->nb_args,
(unsigned long *)&rec->args);
- perf_tp_event(sys_data->enter_id, 0, 1, rec, size);
+ perf_tp_event(sys_data->enter_event->id, 0, 1, rec, size);
end:
perf_swevent_put_recursion_context(rctx);
@@ -615,11 +605,11 @@ static void prof_syscall_exit(struct pt_regs *regs, long ret)
rec = (struct syscall_trace_exit *)raw_data;
tracing_generic_entry_update(&rec->ent, 0, 0);
- rec->ent.type = sys_data->exit_id;
+ rec->ent.type = sys_data->exit_event->id;
rec->nr = syscall_nr;
rec->ret = syscall_get_return_value(current, regs);
- perf_tp_event(sys_data->exit_id, 0, 1, rec, size);
+ perf_tp_event(sys_data->exit_event->id, 0, 1, rec, size);
end:
perf_swevent_put_recursion_context(rctx);
--
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