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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-04-03 05:25:32 -0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-04-03 05:28:48 -0400
commitecb135a1a1953d2895d149e78926be479fdc6f2c (patch)
treee40aa30eefa5cc42ed1169b9798810a710a1bd9a /kernel/trace/trace_irqsoff.c
parentbd6946e87a98fea11907b2a47368e13044458a35 (diff)
parent07961ac7c0ee8b546658717034fe692fd12eefa9 (diff)
Merge tag 'v3.9-rc5' into drm-intel-next-queued
Backmerge Linux 3.9-rc5 since I want to merge a few dp clock cleanups for -next, but they will conflict all over the place with commit 9d1a455b0ca1c2c956b4d9ab212864a8695270f1 Author: Takashi Iwai <tiwai@suse.de> Date: Mon Mar 18 11:25:36 2013 +0100 drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n() from -fixes. Conflicts: drivers/gpu/drm/i915/intel_dp.c: Simply adjacent lines changed. drivers/gpu/drm/i915/intel_panel.c: A field rename in -next conflicts with a bugfix in -fixes. Take the version from -fixes and apply the rename. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'kernel/trace/trace_irqsoff.c')
-rw-r--r--kernel/trace/trace_irqsoff.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 713a2cac4881..443b25b43b4f 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -32,7 +32,7 @@ enum {
32 32
33static int trace_type __read_mostly; 33static int trace_type __read_mostly;
34 34
35static int save_lat_flag; 35static int save_flags;
36 36
37static void stop_irqsoff_tracer(struct trace_array *tr, int graph); 37static void stop_irqsoff_tracer(struct trace_array *tr, int graph);
38static int start_irqsoff_tracer(struct trace_array *tr, int graph); 38static int start_irqsoff_tracer(struct trace_array *tr, int graph);
@@ -558,8 +558,11 @@ static void stop_irqsoff_tracer(struct trace_array *tr, int graph)
558 558
559static void __irqsoff_tracer_init(struct trace_array *tr) 559static void __irqsoff_tracer_init(struct trace_array *tr)
560{ 560{
561 save_lat_flag = trace_flags & TRACE_ITER_LATENCY_FMT; 561 save_flags = trace_flags;
562 trace_flags |= TRACE_ITER_LATENCY_FMT; 562
563 /* non overwrite screws up the latency tracers */
564 set_tracer_flag(TRACE_ITER_OVERWRITE, 1);
565 set_tracer_flag(TRACE_ITER_LATENCY_FMT, 1);
563 566
564 tracing_max_latency = 0; 567 tracing_max_latency = 0;
565 irqsoff_trace = tr; 568 irqsoff_trace = tr;
@@ -573,10 +576,13 @@ static void __irqsoff_tracer_init(struct trace_array *tr)
573 576
574static void irqsoff_tracer_reset(struct trace_array *tr) 577static void irqsoff_tracer_reset(struct trace_array *tr)
575{ 578{
579 int lat_flag = save_flags & TRACE_ITER_LATENCY_FMT;
580 int overwrite_flag = save_flags & TRACE_ITER_OVERWRITE;
581
576 stop_irqsoff_tracer(tr, is_graph()); 582 stop_irqsoff_tracer(tr, is_graph());
577 583
578 if (!save_lat_flag) 584 set_tracer_flag(TRACE_ITER_LATENCY_FMT, lat_flag);
579 trace_flags &= ~TRACE_ITER_LATENCY_FMT; 585 set_tracer_flag(TRACE_ITER_OVERWRITE, overwrite_flag);
580} 586}
581 587
582static void irqsoff_tracer_start(struct trace_array *tr) 588static void irqsoff_tracer_start(struct trace_array *tr)
@@ -609,6 +615,7 @@ static struct tracer irqsoff_tracer __read_mostly =
609 .print_line = irqsoff_print_line, 615 .print_line = irqsoff_print_line,
610 .flags = &tracer_flags, 616 .flags = &tracer_flags,
611 .set_flag = irqsoff_set_flag, 617 .set_flag = irqsoff_set_flag,
618 .flag_changed = trace_keep_overwrite,
612#ifdef CONFIG_FTRACE_SELFTEST 619#ifdef CONFIG_FTRACE_SELFTEST
613 .selftest = trace_selftest_startup_irqsoff, 620 .selftest = trace_selftest_startup_irqsoff,
614#endif 621#endif
@@ -642,6 +649,7 @@ static struct tracer preemptoff_tracer __read_mostly =
642 .print_line = irqsoff_print_line, 649 .print_line = irqsoff_print_line,
643 .flags = &tracer_flags, 650 .flags = &tracer_flags,
644 .set_flag = irqsoff_set_flag, 651 .set_flag = irqsoff_set_flag,
652 .flag_changed = trace_keep_overwrite,
645#ifdef CONFIG_FTRACE_SELFTEST 653#ifdef CONFIG_FTRACE_SELFTEST
646 .selftest = trace_selftest_startup_preemptoff, 654 .selftest = trace_selftest_startup_preemptoff,
647#endif 655#endif
@@ -677,6 +685,7 @@ static struct tracer preemptirqsoff_tracer __read_mostly =
677 .print_line = irqsoff_print_line, 685 .print_line = irqsoff_print_line,
678 .flags = &tracer_flags, 686 .flags = &tracer_flags,
679 .set_flag = irqsoff_set_flag, 687 .set_flag = irqsoff_set_flag,
688 .flag_changed = trace_keep_overwrite,
680#ifdef CONFIG_FTRACE_SELFTEST 689#ifdef CONFIG_FTRACE_SELFTEST
681 .selftest = trace_selftest_startup_preemptirqsoff, 690 .selftest = trace_selftest_startup_preemptirqsoff,
682#endif 691#endif