diff options
Diffstat (limited to 'kernel/trace/trace_unlikely.c')
-rw-r--r-- | kernel/trace/trace_unlikely.c | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/kernel/trace/trace_unlikely.c b/kernel/trace/trace_unlikely.c index 856eb3b7f69..e5d5969853a 100644 --- a/kernel/trace/trace_unlikely.c +++ b/kernel/trace/trace_unlikely.c @@ -17,16 +17,16 @@ #ifdef CONFIG_BRANCH_TRACER -static int unlikely_tracing_enabled __read_mostly; -static DEFINE_MUTEX(unlikely_tracing_mutex); -static struct trace_array *unlikely_tracer; +static int branch_tracing_enabled __read_mostly; +static DEFINE_MUTEX(branch_tracing_mutex); +static struct trace_array *branch_tracer; static void -probe_likely_condition(struct ftrace_likely_data *f, int val, int expect) +probe_likely_condition(struct ftrace_branch_data *f, int val, int expect) { - struct trace_array *tr = unlikely_tracer; + struct trace_array *tr = branch_tracer; struct ring_buffer_event *event; - struct trace_unlikely *entry; + struct trace_branch *entry; unsigned long flags, irq_flags; int cpu, pc; const char *p; @@ -54,7 +54,7 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect) pc = preempt_count(); entry = ring_buffer_event_data(event); tracing_generic_entry_update(&entry->ent, flags, pc); - entry->ent.type = TRACE_UNLIKELY; + entry->ent.type = TRACE_BRANCH; /* Strip off the path, only save the file */ p = f->file + strlen(f->file); @@ -77,51 +77,51 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect) } static inline -void trace_likely_condition(struct ftrace_likely_data *f, int val, int expect) +void trace_likely_condition(struct ftrace_branch_data *f, int val, int expect) { - if (!unlikely_tracing_enabled) + if (!branch_tracing_enabled) return; probe_likely_condition(f, val, expect); } -int enable_unlikely_tracing(struct trace_array *tr) +int enable_branch_tracing(struct trace_array *tr) { int ret = 0; - mutex_lock(&unlikely_tracing_mutex); - unlikely_tracer = tr; + mutex_lock(&branch_tracing_mutex); + branch_tracer = tr; /* * Must be seen before enabling. The reader is a condition * where we do not need a matching rmb() */ smp_wmb(); - unlikely_tracing_enabled++; - mutex_unlock(&unlikely_tracing_mutex); + branch_tracing_enabled++; + mutex_unlock(&branch_tracing_mutex); return ret; } -void disable_unlikely_tracing(void) +void disable_branch_tracing(void) { - mutex_lock(&unlikely_tracing_mutex); + mutex_lock(&branch_tracing_mutex); - if (!unlikely_tracing_enabled) + if (!branch_tracing_enabled) goto out_unlock; - unlikely_tracing_enabled--; + branch_tracing_enabled--; out_unlock: - mutex_unlock(&unlikely_tracing_mutex); + mutex_unlock(&branch_tracing_mutex); } #else static inline -void trace_likely_condition(struct ftrace_likely_data *f, int val, int expect) +void trace_likely_condition(struct ftrace_branch_data *f, int val, int expect) { } #endif /* CONFIG_BRANCH_TRACER */ -void ftrace_likely_update(struct ftrace_likely_data *f, int val, int expect) +void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect) { /* * I would love to have a trace point here instead, but the @@ -148,7 +148,7 @@ static void * t_next(struct seq_file *m, void *v, loff_t *pos) { struct ftrace_pointer *f = m->private; - struct ftrace_likely_data *p = v; + struct ftrace_branch_data *p = v; (*pos)++; @@ -180,7 +180,7 @@ static void t_stop(struct seq_file *m, void *p) static int t_show(struct seq_file *m, void *v) { - struct ftrace_likely_data *p = v; + struct ftrace_branch_data *p = v; const char *f; unsigned long percent; @@ -252,7 +252,7 @@ static struct ftrace_pointer ftrace_unlikely_pos = { .stop = __stop_unlikely_profile, }; -static __init int ftrace_unlikely_init(void) +static __init int ftrace_branch_init(void) { struct dentry *d_tracer; struct dentry *entry; @@ -275,4 +275,4 @@ static __init int ftrace_unlikely_init(void) return 0; } -device_initcall(ftrace_unlikely_init); +device_initcall(ftrace_branch_init); |