ftrace: rename unlikely iter_ctrl to branch
Impact: rename of iter_ctrl unlikely to branch
The unlikely name is ugly. This patch converts the iter_ctrl command
"unlikely" and "nounlikely" to "branch" and "nobranch" respectively.
It also renames a lot of internal functions to use "branch" instead
of "unlikely".
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/trace_unlikely.c b/kernel/trace/trace_unlikely.c
index 856eb3b..e5d5969 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 @@
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 @@
}
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 @@
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 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 @@
.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 @@
return 0;
}
-device_initcall(ftrace_unlikely_init);
+device_initcall(ftrace_branch_init);