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tracing: Consolidate updating of count for traceon/off 

Remove some duplicate code and replace it with a helper function.
This makes the code a it cleaner.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2013-03-09 08:36:53 -05:00 committed by Steven Rostedt
parent 1b22e382ab
commit 1c31714328
1 changed files with 16 additions and 17 deletions
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33
kernel/trace/trace_functions.c
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@ -214,38 +214,37 @@ static struct tracer function_trace __read_mostly =
};
#ifdef CONFIG_DYNAMIC_FTRACE
static void
ftrace_traceon(unsigned long ip, unsigned long parent_ip, void **data)
static int update_count(void **data)
{
long *count = (long *)data;
if (tracing_is_on())
return;
unsigned long *count = (long *)data;
if (!*count)
return;
return 0;
if (*count != -1)
(*count)--;
tracing_on();
return 1;
}
static void
ftrace_traceon(unsigned long ip, unsigned long parent_ip, void **data)
{
if (tracing_is_on())
return;
if (update_count(data))
tracing_on();
}
static void
ftrace_traceoff(unsigned long ip, unsigned long parent_ip, void **data)
{
long *count = (long *)data;
if (!tracing_is_on())
return;
if (!*count)
return;
if (*count != -1)
(*count)--;
tracing_off();
if (update_count(data))
tracing_off();
}
static int