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path: root/kernel/trace/trace_event_profile.c
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Diffstat (limited to 'kernel/trace/trace_event_profile.c')
-rw-r--r--kernel/trace/trace_event_profile.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c
index e0d351b01f5..d9c60f80aa0 100644
--- a/kernel/trace/trace_event_profile.c
+++ b/kernel/trace/trace_event_profile.c
@@ -9,31 +9,33 @@
#include "trace.h"
-struct perf_trace_buf *perf_trace_buf;
+char *perf_trace_buf;
EXPORT_SYMBOL_GPL(perf_trace_buf);
-struct perf_trace_buf *perf_trace_buf_nmi;
+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)
{
- struct perf_trace_buf *buf;
+ char *buf;
int ret = -ENOMEM;
if (atomic_inc_return(&event->profile_count))
return 0;
if (!total_profile_count) {
- buf = alloc_percpu(struct perf_trace_buf);
+ buf = (char *)alloc_percpu(perf_trace_t);
if (!buf)
goto fail_buf;
rcu_assign_pointer(perf_trace_buf, buf);
- buf = alloc_percpu(struct perf_trace_buf);
+ buf = (char *)alloc_percpu(perf_trace_t);
if (!buf)
goto fail_buf_nmi;
@@ -79,7 +81,7 @@ int ftrace_profile_enable(int event_id)
static void ftrace_profile_disable_event(struct ftrace_event_call *event)
{
- struct perf_trace_buf *buf, *nmi_buf;
+ char *buf, *nmi_buf;
if (!atomic_add_negative(-1, &event->profile_count))
return;