From: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
Date: Wed, 14 Jan 2015 17:24:37 +0000 (-0500)
Subject: tracing: Remove extra call to init_ftrace_syscalls()
X-Git-Tag: v3.19-rc5~14^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=83829b74f54186a154ae6b586c05cdb838c2ebc6;p=platform%2Fkernel%2Flinux-stable.git

tracing: Remove extra call to init_ftrace_syscalls()

trace_init() calls init_ftrace_syscalls() and then calls trace_event_init()
which also calls init_ftrace_syscalls(). It makes more sense to only
call it from trace_event_init().

Calling it twice wastes memory, as it allocates the syscall events twice,
and loses the first copy of it.

Link: http://lkml.kernel.org/r/54AF53BD.5070303@huawei.com
Link: http://lkml.kernel.org/r/20150115040505.930398632@goodmis.org

Reported-by: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 2e76797..4a9079b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6918,7 +6918,6 @@ void __init trace_init(void)
 			tracepoint_printk = 0;
 	}
 	tracer_alloc_buffers();
-	init_ftrace_syscalls();
 	trace_event_init();	
 }