ftrace: Pass probe ops to probe function

In preparation to cleaning up the probe function registration code, the
"data" parameter will eventually be removed from the probe->func() call.
Instead it will receive its own "ops" function, in which it can set up its
own data that it needs to map.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

1 files changed, 16 insertions, 8 deletions

diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 4199ca61b0e5..b99f6231281e 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -326,19 +326,22 @@ static void update_traceon_count(void **data, bool on)
 }
 
 static void
-ftrace_traceon_count(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_traceon_count(unsigned long ip, unsigned long parent_ip,
+                     struct ftrace_probe_ops *ops, void **data)
 {
         update_traceon_count(data, 1);
 }
 
 static void
-ftrace_traceoff_count(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_traceoff_count(unsigned long ip, unsigned long parent_ip,
+                      struct ftrace_probe_ops *ops, void **data)
 {
         update_traceon_count(data, 0);
 }
 
 static void
-ftrace_traceon(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_traceon(unsigned long ip, unsigned long parent_ip,
+               struct ftrace_probe_ops *ops, void **data)
 {
         if (tracing_is_on())
                 return;
@@ -347,7 +350,8 @@ ftrace_traceon(unsigned long ip, unsigned long parent_ip, void **data)
 }
 
 static void
-ftrace_traceoff(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_traceoff(unsigned long ip, unsigned long parent_ip,
+                struct ftrace_probe_ops *ops, void **data)
 {
         if (!tracing_is_on())
                 return;
@@ -365,13 +369,15 @@ ftrace_traceoff(unsigned long ip, unsigned long parent_ip, void **data)
 #define STACK_SKIP 4
 
 static void
-ftrace_stacktrace(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_stacktrace(unsigned long ip, unsigned long parent_ip,
+                  struct ftrace_probe_ops *ops, void **data)
 {
         trace_dump_stack(STACK_SKIP);
 }
 
 static void
-ftrace_stacktrace_count(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_stacktrace_count(unsigned long ip, unsigned long parent_ip,
+                        struct ftrace_probe_ops *ops, void **data)
 {
         long *count = (long *)data;
         long old_count;
@@ -419,7 +425,8 @@ static int update_count(void **data)
 }
 
 static void
-ftrace_dump_probe(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_dump_probe(unsigned long ip, unsigned long parent_ip,
+        struct ftrace_probe_ops *ops, void **data)
 {
         if (update_count(data))
                 ftrace_dump(DUMP_ALL);
@@ -427,7 +434,8 @@ ftrace_dump_probe(unsigned long ip, unsigned long parent_ip, void **data)
 
 /* Only dump the current CPU buffer. */
 static void
-ftrace_cpudump_probe(unsigned long ip, unsigned long parent_ip, void **data)
+ftrace_cpudump_probe(unsigned long ip, unsigned long parent_ip,
+        struct ftrace_probe_ops *ops, void **data)
 {
         if (update_count(data))
                 ftrace_dump(DUMP_ORIG);