1 files changed, 0 insertions, 61 deletions
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
deleted file mode 100644
index 4e584a8d6edd..000000000000
--- a/arch/x86/kernel/tracepoint.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Code for supporting irq vector tracepoints.
- *
- * Copyright (C) 2013 Seiji Aguchi <seiji.aguchi@hds.com>
- *
- */
-#include <asm/hw_irq.h>
-#include <asm/desc.h>
-#include <linux/atomic.h>
-
-atomic_t trace_idt_ctr = ATOMIC_INIT(0);
-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
-				(unsigned long) trace_idt_table };
-
-#ifndef CONFIG_X86_64
-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_data
-					= { { { { 0, 0 } } }, };
-#endif
-
-static int trace_irq_vector_refcount;
-static DEFINE_MUTEX(irq_vector_mutex);
-
-static void set_trace_idt_ctr(int val)
-{
-	atomic_set(&trace_idt_ctr, val);
-	/* Ensure the trace_idt_ctr is set before sending IPI */
-	wmb();
-}
-
-static void switch_idt(void *arg)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	load_current_idt();
-	local_irq_restore(flags);
-}
-
-void trace_irq_vector_regfunc(void)
-{
-	mutex_lock(&irq_vector_mutex);
-	if (!trace_irq_vector_refcount) {
-		set_trace_idt_ctr(1);
-		smp_call_function(switch_idt, NULL, 0);
-		switch_idt(NULL);
-	}
-	trace_irq_vector_refcount++;
-	mutex_unlock(&irq_vector_mutex);
-}
-
-void trace_irq_vector_unregfunc(void)
-{
-	mutex_lock(&irq_vector_mutex);
-	trace_irq_vector_refcount--;
-	if (!trace_irq_vector_refcount) {
-		set_trace_idt_ctr(0);
-		smp_call_function(switch_idt, NULL, 0);
-		switch_idt(NULL);
-	}
-	mutex_unlock(&irq_vector_mutex);
-}