Commit 60d970c2 authored Aug 13, 2009 by Ingo Molnar

tracing: Fix syscall tracing on !HAVE_FTRACE_SYSCALLS architectures

The new syscall_regfunc()/unregfunc() functions rely on
the existence of TIF_SYSCALL_FTRACE - but that TIF flag
is only offered by HAVE_FTRACE_SYSCALLS.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 19007a67

kernel/tracepoint.c

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -579,6 +579,8 @@ __initcall(init_tracepoints);

	#endif /* CONFIG_MODULES */		#endif /* CONFIG_MODULES */

			#ifdef CONFIG_FTRACE_SYSCALLS

	static DEFINE_MUTEX(regfunc_mutex);		static DEFINE_MUTEX(regfunc_mutex);
	static int sys_tracepoint_refcount;		static int sys_tracepoint_refcount;

	@@ -615,3 +617,4 @@ void syscall_unregfunc(void)
	}		}
	mutex_unlock(&regfunc_mutex);		mutex_unlock(&regfunc_mutex);
	}		}
			#endif