tracing: Make graph related irqs/preemptsoff functions global

Move trace_graph_function() and print_graph_headers_flags() functions
to the trace_function_graph.c to be globaly available.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <1285243253-7372-3-git-send-email-jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d39b3c5454a5e684b8c720e0791894b36529f1cf..9021f8c0c0c3e379edbd8f39770bd9345794e266 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -343,6 +343,10 @@ void trace_function(struct trace_array *tr,
                    unsigned long ip,
                    unsigned long parent_ip,
                    unsigned long flags, int pc);
+void trace_graph_function(struct trace_array *tr,
+                   unsigned long ip,
+                   unsigned long parent_ip,
+                   unsigned long flags, int pc);
 void trace_default_header(struct seq_file *m);
 void print_trace_header(struct seq_file *m, struct trace_iterator *iter);
 int trace_empty(struct trace_iterator *iter);

diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 4c58ccc6427cf25409b7e7d76432824f3bea07cc..6f8fe28acba11eaf1a585253fb57490537dca610 100644 (file)
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -262,6 +262,35 @@ int trace_graph_thresh_entry(struct ftrace_graph_ent *trace)
                return trace_graph_entry(trace);
 }
 
+static void
+__trace_graph_function(struct trace_array *tr,
+               unsigned long ip, unsigned long flags, int pc)
+{
+       u64 time = trace_clock_local();
+       struct ftrace_graph_ent ent = {
+               .func  = ip,
+               .depth = 0,
+       };
+       struct ftrace_graph_ret ret = {
+               .func     = ip,
+               .depth    = 0,
+               .calltime = time,
+               .rettime  = time,
+       };
+
+       __trace_graph_entry(tr, &ent, flags, pc);
+       __trace_graph_return(tr, &ret, flags, pc);
+}
+
+void
+trace_graph_function(struct trace_array *tr,
+               unsigned long ip, unsigned long parent_ip,
+               unsigned long flags, int pc)
+{
+       __trace_graph_function(tr, parent_ip, flags, pc);
+       __trace_graph_function(tr, ip, flags, pc);
+}
+
 void __trace_graph_return(struct trace_array *tr,
                                struct ftrace_graph_ret *trace,
                                unsigned long flags,
@@ -1179,7 +1208,7 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent,
 
 
 enum print_line_t
-print_graph_function_flags(struct trace_iterator *iter, u32 flags)
+__print_graph_function_flags(struct trace_iterator *iter, u32 flags)
 {
        struct ftrace_graph_ent_entry *field;
        struct fgraph_data *data = iter->private;
@@ -1242,7 +1271,18 @@ print_graph_function_flags(struct trace_iterator *iter, u32 flags)
 static enum print_line_t
 print_graph_function(struct trace_iterator *iter)
 {
-       return print_graph_function_flags(iter, tracer_flags.val);
+       return __print_graph_function_flags(iter, tracer_flags.val);
+}
+
+enum print_line_t print_graph_function_flags(struct trace_iterator *iter,
+                                            u32 flags)
+{
+       if (trace_flags & TRACE_ITER_LATENCY_FMT)
+               flags |= TRACE_GRAPH_PRINT_DURATION;
+       else
+               flags |= TRACE_GRAPH_PRINT_ABS_TIME;
+
+       return __print_graph_function_flags(iter, flags);
 }
 
 static enum print_line_t
@@ -1274,7 +1314,7 @@ static void print_lat_header(struct seq_file *s, u32 flags)
        seq_printf(s, "#%.*s|||| /                     \n", size, spaces);
 }
 
-void print_graph_headers_flags(struct seq_file *s, u32 flags)
+static void __print_graph_headers_flags(struct seq_file *s, u32 flags)
 {
        int lat = trace_flags & TRACE_ITER_LATENCY_FMT;
 
@@ -1315,6 +1355,23 @@ void print_graph_headers(struct seq_file *s)
        print_graph_headers_flags(s, tracer_flags.val);
 }
 
+void print_graph_headers_flags(struct seq_file *s, u32 flags)
+{
+       struct trace_iterator *iter = s->private;
+
+       if (trace_flags & TRACE_ITER_LATENCY_FMT) {
+               /* print nothing if the buffers are empty */
+               if (trace_empty(iter))
+                       return;
+
+               print_trace_header(s, iter);
+               flags |= TRACE_GRAPH_PRINT_DURATION;
+       } else
+               flags |= TRACE_GRAPH_PRINT_ABS_TIME;
+
+       __print_graph_headers_flags(s, flags);
+}
+
 void graph_trace_open(struct trace_iterator *iter)
 {
        /* pid and depth on the last trace processed */

diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 73a6b0601f2e301c0cd5575cc96f7f0b788853d9..4047e98afcbaeac84c744be078d451c75f47b9d3 100644 (file)
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -229,75 +229,33 @@ static void irqsoff_trace_close(struct trace_iterator *iter)
 
 static enum print_line_t irqsoff_print_line(struct trace_iterator *iter)
 {
-       u32 flags = GRAPH_TRACER_FLAGS;
-
-       if (trace_flags & TRACE_ITER_LATENCY_FMT)
-               flags |= TRACE_GRAPH_PRINT_DURATION;
-       else
-               flags |= TRACE_GRAPH_PRINT_ABS_TIME;
-
        /*
         * In graph mode call the graph tracer output function,
         * otherwise go with the TRACE_FN event handler
         */
        if (is_graph())
-               return print_graph_function_flags(iter, flags);
+               return print_graph_function_flags(iter, GRAPH_TRACER_FLAGS);
 
        return TRACE_TYPE_UNHANDLED;
 }
 
 static void irqsoff_print_header(struct seq_file *s)
 {
-       if (is_graph()) {
-               struct trace_iterator *iter = s->private;
-               u32 flags = GRAPH_TRACER_FLAGS;
-
-               if (trace_flags & TRACE_ITER_LATENCY_FMT) {
-                       /* print nothing if the buffers are empty */
-                       if (trace_empty(iter))
-                               return;
-
-                       print_trace_header(s, iter);
-                       flags |= TRACE_GRAPH_PRINT_DURATION;
-               } else
-                       flags |= TRACE_GRAPH_PRINT_ABS_TIME;
-
-               print_graph_headers_flags(s, flags);
-       } else
+       if (is_graph())
+               print_graph_headers_flags(s, GRAPH_TRACER_FLAGS);
+       else
                trace_default_header(s);
 }
 
-static void
-trace_graph_function(struct trace_array *tr,
-                unsigned long ip, unsigned long flags, int pc)
-{
-       u64 time = trace_clock_local();
-       struct ftrace_graph_ent ent = {
-               .func  = ip,
-               .depth = 0,
-       };
-       struct ftrace_graph_ret ret = {
-               .func     = ip,
-               .depth    = 0,
-               .calltime = time,
-               .rettime  = time,
-       };
-
-       __trace_graph_entry(tr, &ent, flags, pc);
-       __trace_graph_return(tr, &ret, flags, pc);
-}
-
 static void
 __trace_function(struct trace_array *tr,
                 unsigned long ip, unsigned long parent_ip,
                 unsigned long flags, int pc)
 {
-       if (!is_graph())
+       if (is_graph())
+               trace_graph_function(tr, ip, parent_ip, flags, pc);
+       else
                trace_function(tr, ip, parent_ip, flags, pc);
-       else {
-               trace_graph_function(tr, parent_ip, flags, pc);
-               trace_graph_function(tr, ip, flags, pc);
-       }
 }
 
 #else