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authorNamhyung Kim <namhyung@gmail.com>2010-08-11 12:47:59 +0900
committerFrederic Weisbecker <fweisbec@gmail.com>2010-08-19 01:33:05 +0200
commit6016ee13db518ab1cd0cbf43fc2ad5712021e338 (patch)
tree317d1ed2b103db13fef6bb692a73235de41d764b
parent7ae07ea3a48d30689ee037cb136bc21f0b37d8ae (diff)
perf, tracing: add missing __percpu markups
ftrace_event_call->perf_events, perf_trace_buf, fgraph_data->cpu_data and some local variables are percpu pointers missing __percpu markups. Add them. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephane Eranian <eranian@google.com> LKML-Reference: <1281498479-28551-1-git-send-email-namhyung@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
-rw-r--r--include/linux/ftrace_event.h4
-rw-r--r--kernel/trace/trace_event_perf.c15
-rw-r--r--kernel/trace/trace_functions_graph.c2
3 files changed, 11 insertions, 10 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 02b8b24f8f5..5f8ad7bec63 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -191,8 +191,8 @@ struct ftrace_event_call {
unsigned int flags;
#ifdef CONFIG_PERF_EVENTS
- int perf_refcount;
- struct hlist_head *perf_events;
+ int perf_refcount;
+ struct hlist_head __percpu *perf_events;
#endif
};
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index db2eae2efcf..92f5477a006 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -9,7 +9,7 @@
#include <linux/kprobes.h>
#include "trace.h"
-static char *perf_trace_buf[PERF_NR_CONTEXTS];
+static char __percpu *perf_trace_buf[PERF_NR_CONTEXTS];
/*
* Force it to be aligned to unsigned long to avoid misaligned accesses
@@ -24,7 +24,7 @@ static int total_ref_count;
static int perf_trace_event_init(struct ftrace_event_call *tp_event,
struct perf_event *p_event)
{
- struct hlist_head *list;
+ struct hlist_head __percpu *list;
int ret = -ENOMEM;
int cpu;
@@ -42,11 +42,11 @@ static int perf_trace_event_init(struct ftrace_event_call *tp_event,
tp_event->perf_events = list;
if (!total_ref_count) {
- char *buf;
+ char __percpu *buf;
int i;
for (i = 0; i < PERF_NR_CONTEXTS; i++) {
- buf = (char *)alloc_percpu(perf_trace_t);
+ buf = (char __percpu *)alloc_percpu(perf_trace_t);
if (!buf)
goto fail;
@@ -102,13 +102,14 @@ int perf_trace_init(struct perf_event *p_event)
int perf_trace_enable(struct perf_event *p_event)
{
struct ftrace_event_call *tp_event = p_event->tp_event;
+ struct hlist_head __percpu *pcpu_list;
struct hlist_head *list;
- list = tp_event->perf_events;
- if (WARN_ON_ONCE(!list))
+ pcpu_list = tp_event->perf_events;
+ if (WARN_ON_ONCE(!pcpu_list))
return -EINVAL;
- list = this_cpu_ptr(list);
+ list = this_cpu_ptr(pcpu_list);
hlist_add_head_rcu(&p_event->hlist_entry, list);
return 0;
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 6bff2362578..fcb5a542cd2 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -23,7 +23,7 @@ struct fgraph_cpu_data {
};
struct fgraph_data {
- struct fgraph_cpu_data *cpu_data;
+ struct fgraph_cpu_data __percpu *cpu_data;
/* Place to preserve last processed entry. */
struct ftrace_graph_ent_entry ent;