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-rw-r--r--kernel/trace/trace.c4
-rw-r--r--kernel/trace/trace_hw_branches.c51
2 files changed, 28 insertions, 27 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8439cdcada94..85a5ed70b5b2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -203,7 +203,7 @@ cycle_t ftrace_now(int cpu)
203 */ 203 */
204static struct trace_array max_tr; 204static struct trace_array max_tr;
205 205
206static DEFINE_PER_CPU(struct trace_array_cpu, max_data); 206static DEFINE_PER_CPU(struct trace_array_cpu, max_tr_data);
207 207
208/* tracer_enabled is used to toggle activation of a tracer */ 208/* tracer_enabled is used to toggle activation of a tracer */
209static int tracer_enabled = 1; 209static int tracer_enabled = 1;
@@ -4426,7 +4426,7 @@ __init static int tracer_alloc_buffers(void)
4426 /* Allocate the first page for all buffers */ 4426 /* Allocate the first page for all buffers */
4427 for_each_tracing_cpu(i) { 4427 for_each_tracing_cpu(i) {
4428 global_trace.data[i] = &per_cpu(global_trace_cpu, i); 4428 global_trace.data[i] = &per_cpu(global_trace_cpu, i);
4429 max_tr.data[i] = &per_cpu(max_data, i); 4429 max_tr.data[i] = &per_cpu(max_tr_data, i);
4430 } 4430 }
4431 4431
4432 trace_init_cmdlines(); 4432 trace_init_cmdlines();
diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c
index 23b63859130e..adaf7a39d0dc 100644
--- a/kernel/trace/trace_hw_branches.c
+++ b/kernel/trace/trace_hw_branches.c
@@ -20,10 +20,10 @@
20 20
21#define BTS_BUFFER_SIZE (1 << 13) 21#define BTS_BUFFER_SIZE (1 << 13)
22 22
23static DEFINE_PER_CPU(struct bts_tracer *, tracer); 23static DEFINE_PER_CPU(struct bts_tracer *, hwb_tracer);
24static DEFINE_PER_CPU(unsigned char[BTS_BUFFER_SIZE], buffer); 24static DEFINE_PER_CPU(unsigned char[BTS_BUFFER_SIZE], hwb_buffer);
25 25
26#define this_tracer per_cpu(tracer, smp_processor_id()) 26#define this_tracer per_cpu(hwb_tracer, smp_processor_id())
27 27
28static int trace_hw_branches_enabled __read_mostly; 28static int trace_hw_branches_enabled __read_mostly;
29static int trace_hw_branches_suspended __read_mostly; 29static int trace_hw_branches_suspended __read_mostly;
@@ -32,12 +32,13 @@ static struct trace_array *hw_branch_trace __read_mostly;
32 32
33static void bts_trace_init_cpu(int cpu) 33static void bts_trace_init_cpu(int cpu)
34{ 34{
35 per_cpu(tracer, cpu) = 35 per_cpu(hwb_tracer, cpu) =
36 ds_request_bts_cpu(cpu, per_cpu(buffer, cpu), BTS_BUFFER_SIZE, 36 ds_request_bts_cpu(cpu, per_cpu(hwb_buffer, cpu),
37 NULL, (size_t)-1, BTS_KERNEL); 37 BTS_BUFFER_SIZE, NULL, (size_t)-1,
38 BTS_KERNEL);
38 39
39 if (IS_ERR(per_cpu(tracer, cpu))) 40 if (IS_ERR(per_cpu(hwb_tracer, cpu)))
40 per_cpu(tracer, cpu) = NULL; 41 per_cpu(hwb_tracer, cpu) = NULL;
41} 42}
42 43
43static int bts_trace_init(struct trace_array *tr) 44static int bts_trace_init(struct trace_array *tr)
@@ -51,7 +52,7 @@ static int bts_trace_init(struct trace_array *tr)
51 for_each_online_cpu(cpu) { 52 for_each_online_cpu(cpu) {
52 bts_trace_init_cpu(cpu); 53 bts_trace_init_cpu(cpu);
53 54
54 if (likely(per_cpu(tracer, cpu))) 55 if (likely(per_cpu(hwb_tracer, cpu)))
55 trace_hw_branches_enabled = 1; 56 trace_hw_branches_enabled = 1;
56 } 57 }
57 trace_hw_branches_suspended = 0; 58 trace_hw_branches_suspended = 0;
@@ -67,9 +68,9 @@ static void bts_trace_reset(struct trace_array *tr)
67 68
68 get_online_cpus(); 69 get_online_cpus();
69 for_each_online_cpu(cpu) { 70 for_each_online_cpu(cpu) {
70 if (likely(per_cpu(tracer, cpu))) { 71 if (likely(per_cpu(hwb_tracer, cpu))) {
71 ds_release_bts(per_cpu(tracer, cpu)); 72 ds_release_bts(per_cpu(hwb_tracer, cpu));
72 per_cpu(tracer, cpu) = NULL; 73 per_cpu(hwb_tracer, cpu) = NULL;
73 } 74 }
74 } 75 }
75 trace_hw_branches_enabled = 0; 76 trace_hw_branches_enabled = 0;
@@ -83,8 +84,8 @@ static void bts_trace_start(struct trace_array *tr)
83 84
84 get_online_cpus(); 85 get_online_cpus();
85 for_each_online_cpu(cpu) 86 for_each_online_cpu(cpu)
86 if (likely(per_cpu(tracer, cpu))) 87 if (likely(per_cpu(hwb_tracer, cpu)))
87 ds_resume_bts(per_cpu(tracer, cpu)); 88 ds_resume_bts(per_cpu(hwb_tracer, cpu));
88 trace_hw_branches_suspended = 0; 89 trace_hw_branches_suspended = 0;
89 put_online_cpus(); 90 put_online_cpus();
90} 91}
@@ -95,8 +96,8 @@ static void bts_trace_stop(struct trace_array *tr)
95 96
96 get_online_cpus(); 97 get_online_cpus();
97 for_each_online_cpu(cpu) 98 for_each_online_cpu(cpu)
98 if (likely(per_cpu(tracer, cpu))) 99 if (likely(per_cpu(hwb_tracer, cpu)))
99 ds_suspend_bts(per_cpu(tracer, cpu)); 100 ds_suspend_bts(per_cpu(hwb_tracer, cpu));
100 trace_hw_branches_suspended = 1; 101 trace_hw_branches_suspended = 1;
101 put_online_cpus(); 102 put_online_cpus();
102} 103}
@@ -114,16 +115,16 @@ static int __cpuinit bts_hotcpu_handler(struct notifier_block *nfb,
114 bts_trace_init_cpu(cpu); 115 bts_trace_init_cpu(cpu);
115 116
116 if (trace_hw_branches_suspended && 117 if (trace_hw_branches_suspended &&
117 likely(per_cpu(tracer, cpu))) 118 likely(per_cpu(hwb_tracer, cpu)))
118 ds_suspend_bts(per_cpu(tracer, cpu)); 119 ds_suspend_bts(per_cpu(hwb_tracer, cpu));
119 } 120 }
120 break; 121 break;
121 122
122 case CPU_DOWN_PREPARE: 123 case CPU_DOWN_PREPARE:
123 /* The notification is sent with interrupts enabled. */ 124 /* The notification is sent with interrupts enabled. */
124 if (likely(per_cpu(tracer, cpu))) { 125 if (likely(per_cpu(hwb_tracer, cpu))) {
125 ds_release_bts(per_cpu(tracer, cpu)); 126 ds_release_bts(per_cpu(hwb_tracer, cpu));
126 per_cpu(tracer, cpu) = NULL; 127 per_cpu(hwb_tracer, cpu) = NULL;
127 } 128 }
128 } 129 }
129 130
@@ -256,8 +257,8 @@ static void trace_bts_prepare(struct trace_iterator *iter)
256 257
257 get_online_cpus(); 258 get_online_cpus();
258 for_each_online_cpu(cpu) 259 for_each_online_cpu(cpu)
259 if (likely(per_cpu(tracer, cpu))) 260 if (likely(per_cpu(hwb_tracer, cpu)))
260 ds_suspend_bts(per_cpu(tracer, cpu)); 261 ds_suspend_bts(per_cpu(hwb_tracer, cpu));
261 /* 262 /*
262 * We need to collect the trace on the respective cpu since ftrace 263 * We need to collect the trace on the respective cpu since ftrace
263 * implicitly adds the record for the current cpu. 264 * implicitly adds the record for the current cpu.
@@ -266,8 +267,8 @@ static void trace_bts_prepare(struct trace_iterator *iter)
266 on_each_cpu(trace_bts_cpu, iter->tr, 1); 267 on_each_cpu(trace_bts_cpu, iter->tr, 1);
267 268
268 for_each_online_cpu(cpu) 269 for_each_online_cpu(cpu)
269 if (likely(per_cpu(tracer, cpu))) 270 if (likely(per_cpu(hwb_tracer, cpu)))
270 ds_resume_bts(per_cpu(tracer, cpu)); 271 ds_resume_bts(per_cpu(hwb_tracer, cpu));
271 put_online_cpus(); 272 put_online_cpus();
272} 273}
273 274