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authorSteven Rostedt <srostedt@redhat.com>2011-08-08 16:57:47 -0400
committerSteven Rostedt <rostedt@goodmis.org>2012-07-19 13:17:35 -0400
commit2f5f6ad9390c1ebbf738d130dbfe80b60eaa167e (patch)
tree1a88c37725d3efbcde8fa0a3cf19490d793877f0 /kernel/trace/trace_selftest.c
parent6e0f17be0361444862637e8986c8c1a3b3f8dcf8 (diff)
downloadlwn-2f5f6ad9390c1ebbf738d130dbfe80b60eaa167e.tar.gz
lwn-2f5f6ad9390c1ebbf738d130dbfe80b60eaa167e.zip
ftrace: Pass ftrace_ops as third parameter to function trace callback
Currently the function trace callback receives only the ip and parent_ip of the function that it traced. It would be more powerful to also return the ops that registered the function as well. This allows the same function to act differently depending on what ftrace_ops registered it. Link: http://lkml.kernel.org/r/20120612225424.267254552@goodmis.org Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_selftest.c')
-rw-r--r--kernel/trace/trace_selftest.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 288541f977fb..9ae40c823af8 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -103,35 +103,40 @@ static inline void warn_failed_init_tracer(struct tracer *trace, int init_ret)
static int trace_selftest_test_probe1_cnt;
static void trace_selftest_test_probe1_func(unsigned long ip,
- unsigned long pip)
+ unsigned long pip,
+ struct ftrace_ops *op)
{
trace_selftest_test_probe1_cnt++;
}
static int trace_selftest_test_probe2_cnt;
static void trace_selftest_test_probe2_func(unsigned long ip,
- unsigned long pip)
+ unsigned long pip,
+ struct ftrace_ops *op)
{
trace_selftest_test_probe2_cnt++;
}
static int trace_selftest_test_probe3_cnt;
static void trace_selftest_test_probe3_func(unsigned long ip,
- unsigned long pip)
+ unsigned long pip,
+ struct ftrace_ops *op)
{
trace_selftest_test_probe3_cnt++;
}
static int trace_selftest_test_global_cnt;
static void trace_selftest_test_global_func(unsigned long ip,
- unsigned long pip)
+ unsigned long pip,
+ struct ftrace_ops *op)
{
trace_selftest_test_global_cnt++;
}
static int trace_selftest_test_dyn_cnt;
static void trace_selftest_test_dyn_func(unsigned long ip,
- unsigned long pip)
+ unsigned long pip,
+ struct ftrace_ops *op)
{
trace_selftest_test_dyn_cnt++;
}