tracing: Move trace sysctls into trace.c

Move trace ctl tables into their own const array in
kernel/trace/trace.c. The sysctl table register is called with
subsys_initcall placing if after its original place in proc_root_init.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kernel/sysctl.c.

Signed-off-by: Joel Granados <joel.granados@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>

kernel/sysctl.c

@@ -44,7 +44,6 @@
 #include <linux/nfs_fs.h>
 #include <linux/acpi.h>
 #include <linux/reboot.h>
-#include <linux/ftrace.h>
 #include <linux/kmod.h>
 #include <linux/capability.h>
 #include <linux/binfmts.h>
@@ -1662,29 +1661,6 @@ static const struct ctl_table kern_table[] = {
 		.proc_handler	= stack_trace_sysctl,
 	},
 #endif
-#ifdef CONFIG_TRACING
-	{
-		.procname	= "ftrace_dump_on_oops",
-		.data		= &ftrace_dump_on_oops,
-		.maxlen		= MAX_TRACER_SIZE,
-		.mode		= 0644,
-		.proc_handler	= proc_dostring,
-	},
-	{
-		.procname	= "traceoff_on_warning",
-		.data		= &__disable_trace_on_warning,
-		.maxlen		= sizeof(__disable_trace_on_warning),
-		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
-	},
-	{
-		.procname	= "tracepoint_printk",
-		.data		= &tracepoint_printk,
-		.maxlen		= sizeof(tracepoint_printk),
-		.mode		= 0644,
-		.proc_handler	= tracepoint_printk_sysctl,
-	},
-#endif
 #ifdef CONFIG_MODULES
 	{
 		.procname	= "modprobe",