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authorFrederic Weisbecker <fweisbec@gmail.com>2008-11-25 21:07:04 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-26 01:59:45 +0100
commitfb52607afcd0629776f1dc9e657647ceae81dd50 (patch)
tree7bf43b41ff8510d3098c089913cce56a9049f0fd /kernel/trace/ftrace.c
parent509dceef6470442d8c7b8a43ec34125205840b3c (diff)
tracing/function-return-tracer: change the name into function-graph-tracer
Impact: cleanup This patch changes the name of the "return function tracer" into function-graph-tracer which is a more suitable name for a tracing which makes one able to retrieve the ordered call stack during the code flow. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/ftrace.c')
-rw-r--r--kernel/trace/ftrace.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 53042f118f2..9e19976af72 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -395,11 +395,11 @@ __ftrace_replace_code(struct dyn_ftrace *rec, int enable)
unsigned long ip, fl;
unsigned long ftrace_addr;
-#ifdef CONFIG_FUNCTION_RET_TRACER
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
if (ftrace_tracing_type == FTRACE_TYPE_ENTER)
ftrace_addr = (unsigned long)ftrace_caller;
else
- ftrace_addr = (unsigned long)ftrace_return_caller;
+ ftrace_addr = (unsigned long)ftrace_graph_caller;
#else
ftrace_addr = (unsigned long)ftrace_caller;
#endif
@@ -1496,13 +1496,13 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
return ret;
}
-#ifdef CONFIG_FUNCTION_RET_TRACER
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static atomic_t ftrace_retfunc_active;
/* The callback that hooks the return of a function */
-trace_function_return_t ftrace_function_return =
- (trace_function_return_t)ftrace_stub;
+trace_function_graph_t ftrace_graph_function =
+ (trace_function_graph_t)ftrace_stub;
/* Try to assign a return stack array on FTRACE_RETSTACK_ALLOC_SIZE tasks. */
@@ -1549,7 +1549,7 @@ free:
}
/* Allocate a return stack for each task */
-static int start_return_tracing(void)
+static int start_graph_tracing(void)
{
struct ftrace_ret_stack **ret_stack_list;
int ret;
@@ -1569,7 +1569,7 @@ static int start_return_tracing(void)
return ret;
}
-int register_ftrace_return(trace_function_return_t func)
+int register_ftrace_graph(trace_function_graph_t func)
{
int ret = 0;
@@ -1584,13 +1584,13 @@ int register_ftrace_return(trace_function_return_t func)
goto out;
}
atomic_inc(&ftrace_retfunc_active);
- ret = start_return_tracing();
+ ret = start_graph_tracing();
if (ret) {
atomic_dec(&ftrace_retfunc_active);
goto out;
}
ftrace_tracing_type = FTRACE_TYPE_RETURN;
- ftrace_function_return = func;
+ ftrace_graph_function = func;
ftrace_startup();
out:
@@ -1598,12 +1598,12 @@ out:
return ret;
}
-void unregister_ftrace_return(void)
+void unregister_ftrace_graph(void)
{
mutex_lock(&ftrace_sysctl_lock);
atomic_dec(&ftrace_retfunc_active);
- ftrace_function_return = (trace_function_return_t)ftrace_stub;
+ ftrace_graph_function = (trace_function_graph_t)ftrace_stub;
ftrace_shutdown();
/* Restore normal tracing type */
ftrace_tracing_type = FTRACE_TYPE_ENTER;
@@ -1612,7 +1612,7 @@ void unregister_ftrace_return(void)
}
/* Allocate a return stack for newly created task */
-void ftrace_retfunc_init_task(struct task_struct *t)
+void ftrace_graph_init_task(struct task_struct *t)
{
if (atomic_read(&ftrace_retfunc_active)) {
t->ret_stack = kmalloc(FTRACE_RETFUNC_DEPTH
@@ -1626,7 +1626,7 @@ void ftrace_retfunc_init_task(struct task_struct *t)
t->ret_stack = NULL;
}
-void ftrace_retfunc_exit_task(struct task_struct *t)
+void ftrace_graph_exit_task(struct task_struct *t)
{
struct ftrace_ret_stack *ret_stack = t->ret_stack;