Commit-ID: c7ef3a9004201bca90626db246a19dadd2c29c9b
Gitweb: http://git.kernel.org/tip/c7ef3a9004201bca90626db246a19dadd2c29c9b
Author: Steven Rostedt <srostedt@xxxxxxxxxx>
AuthorDate: Mon, 28 Dec 2009 21:13:59 -0500
Committer: Steven Rostedt <rostedt@xxxxxxxxxxx>
CommitDate: Wed, 6 Jan 2010 12:02:32 -0500
tracing: Have syscall tracing call its own init function
In the clean up of having all events call one specific function,
the syscall event init was changed to call this helper function.
With the new print_fmt updates, the syscalls need to do special
initializations. This patch converts the syscall events to call
its own init function again.
Cc: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Cc: Li Zefan <lizf@xxxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
include/linux/syscalls.h | 4 ++--
kernel/trace/trace_syscalls.c | 12 ++++++------
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 207466a..ed353d2 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -143,7 +143,7 @@ struct perf_event_attr;
.name = "sys_enter"#sname, \
.system = "syscalls", \
.event = &enter_syscall_print_##sname, \
- .raw_init = trace_event_raw_init, \
+ .raw_init = init_syscall_trace, \
.show_format = syscall_enter_format, \
.define_fields = syscall_enter_define_fields, \
.regfunc = reg_event_syscall_enter, \
@@ -165,7 +165,7 @@ struct perf_event_attr;
.name = "sys_exit"#sname, \
.system = "syscalls", \
.event = &exit_syscall_print_##sname, \
- .raw_init = trace_event_raw_init, \
+ .raw_init = init_syscall_trace, \
.show_format = syscall_exit_format, \
.define_fields = syscall_exit_define_fields, \
.regfunc = reg_event_syscall_exit, \
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 1352b0a..a78e863 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -450,14 +450,14 @@ int init_syscall_trace(struct ftrace_event_call *call)
if (set_syscall_print_fmt(call) < 0)
return -ENOMEM;
- id = register_ftrace_event(call->event);
- if (!id) {
+ id = trace_event_raw_init(call);
+
+ if (id < 0) {
free_syscall_print_fmt(call);
- return -ENODEV;
+ return id;
}
- call->id = id;
- INIT_LIST_HEAD(&call->fields);
- return 0;
+
+ return id;
}
int __init init_ftrace_syscalls(void)
--
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