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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-31 08:31:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-31 08:31:57 +0100 |
| commit | a9de18eb761f7c1c860964b2e5addc1a35c7e861 (patch) | |
| tree | 886e75fdfd09690cd262ca69cb7f5d1d42b48602 /kernel/trace/trace_sysprof.c | |
| parent | b2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (diff) | |
| parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) | |
| download | op-kernel-dev-a9de18eb761f7c1c860964b2e5addc1a35c7e861.zip op-kernel-dev-a9de18eb761f7c1c860964b2e5addc1a35c7e861.tar.gz | |
Merge branch 'linus' into stackprotector
Conflicts:
arch/x86/include/asm/pda.h
kernel/fork.c
Diffstat (limited to 'kernel/trace/trace_sysprof.c')
| -rw-r--r-- | kernel/trace/trace_sysprof.c | 32 |
1 files changed, 5 insertions, 27 deletions
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c index db58fb6..a5779bd 100644 --- a/kernel/trace/trace_sysprof.c +++ b/kernel/trace/trace_sysprof.c @@ -202,7 +202,6 @@ static void start_stack_timer(int cpu) hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); hrtimer->function = stack_trace_timer_fn; - hrtimer->cb_mode = HRTIMER_CB_IRQSAFE_PERCPU; hrtimer_start(hrtimer, ns_to_ktime(sample_period), HRTIMER_MODE_REL); } @@ -234,20 +233,10 @@ static void stop_stack_timers(void) stop_stack_timer(cpu); } -static void stack_reset(struct trace_array *tr) -{ - int cpu; - - tr->time_start = ftrace_now(tr->cpu); - - for_each_online_cpu(cpu) - tracing_reset(tr->data[cpu]); -} - static void start_stack_trace(struct trace_array *tr) { mutex_lock(&sample_timer_lock); - stack_reset(tr); + tracing_reset_online_cpus(tr); start_stack_timers(); tracer_enabled = 1; mutex_unlock(&sample_timer_lock); @@ -261,27 +250,17 @@ static void stop_stack_trace(struct trace_array *tr) mutex_unlock(&sample_timer_lock); } -static void stack_trace_init(struct trace_array *tr) +static int stack_trace_init(struct trace_array *tr) { sysprof_trace = tr; - if (tr->ctrl) - start_stack_trace(tr); + start_stack_trace(tr); + return 0; } static void stack_trace_reset(struct trace_array *tr) { - if (tr->ctrl) - stop_stack_trace(tr); -} - -static void stack_trace_ctrl_update(struct trace_array *tr) -{ - /* When starting a new trace, reset the buffers */ - if (tr->ctrl) - start_stack_trace(tr); - else - stop_stack_trace(tr); + stop_stack_trace(tr); } static struct tracer stack_trace __read_mostly = @@ -289,7 +268,6 @@ static struct tracer stack_trace __read_mostly = .name = "sysprof", .init = stack_trace_init, .reset = stack_trace_reset, - .ctrl_update = stack_trace_ctrl_update, #ifdef CONFIG_FTRACE_SELFTEST .selftest = trace_selftest_startup_sysprof, #endif |
