1 files changed, 0 insertions, 122 deletions

diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c
deleted file mode 100644
index 9e25573242cf..000000000000
--- a/kernel/trace/trace_event_profile.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * trace event based perf counter profiling
- *
- * Copyright (C) 2009 Red Hat Inc, Peter Zijlstra <pzijlstr@redhat.com>
- *
- */
-
-#include <linux/module.h>
-#include "trace.h"
-
-
-char *perf_trace_buf;
-EXPORT_SYMBOL_GPL(perf_trace_buf);
-
-char *perf_trace_buf_nmi;
-EXPORT_SYMBOL_GPL(perf_trace_buf_nmi);
-
-typedef typeof(char [FTRACE_MAX_PROFILE_SIZE]) perf_trace_t ;
-
-/* Count the events in use (per event id, not per instance) */
-static int      total_profile_count;
-
-static int ftrace_profile_enable_event(struct ftrace_event_call *event)
-{
-        char *buf;
-        int ret = -ENOMEM;
-
-        if (event->profile_count++ > 0)
-                return 0;
-
-        if (!total_profile_count) {
-                buf = (char *)alloc_percpu(perf_trace_t);
-                if (!buf)
-                        goto fail_buf;
-
-                rcu_assign_pointer(perf_trace_buf, buf);
-
-                buf = (char *)alloc_percpu(perf_trace_t);
-                if (!buf)
-                        goto fail_buf_nmi;
-
-                rcu_assign_pointer(perf_trace_buf_nmi, buf);
-        }
-
-        ret = event->profile_enable(event);
-        if (!ret) {
-                total_profile_count++;
-                return 0;
-        }
-
-fail_buf_nmi:
-        if (!total_profile_count) {
-                free_percpu(perf_trace_buf_nmi);
-                free_percpu(perf_trace_buf);
-                perf_trace_buf_nmi = NULL;
-                perf_trace_buf = NULL;
-        }
-fail_buf:
-        event->profile_count--;
-
-        return ret;
-}
-
-int ftrace_profile_enable(int event_id)
-{
-        struct ftrace_event_call *event;
-        int ret = -EINVAL;
-
-        mutex_lock(&event_mutex);
-        list_for_each_entry(event, &ftrace_events, list) {
-                if (event->id == event_id && event->profile_enable &&
-                    try_module_get(event->mod)) {
-                        ret = ftrace_profile_enable_event(event);
-                        break;
-                }
-        }
-        mutex_unlock(&event_mutex);
-
-        return ret;
-}
-
-static void ftrace_profile_disable_event(struct ftrace_event_call *event)
-{
-        char *buf, *nmi_buf;
-
-        if (--event->profile_count > 0)
-                return;
-
-        event->profile_disable(event);
-
-        if (!--total_profile_count) {
-                buf = perf_trace_buf;
-                rcu_assign_pointer(perf_trace_buf, NULL);
-
-                nmi_buf = perf_trace_buf_nmi;
-                rcu_assign_pointer(perf_trace_buf_nmi, NULL);
-
-                /*
-                 * Ensure every events in profiling have finished before
-                 * releasing the buffers
-                 */
-                synchronize_sched();
-
-                free_percpu(buf);
-                free_percpu(nmi_buf);
-        }
-}
-
-void ftrace_profile_disable(int event_id)
-{
-        struct ftrace_event_call *event;
-
-        mutex_lock(&event_mutex);
-        list_for_each_entry(event, &ftrace_events, list) {
-                if (event->id == event_id) {
-                        ftrace_profile_disable_event(event);
-                        module_put(event->mod);
-                        break;
-                }
-        }
-        mutex_unlock(&event_mutex);
-}