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| author |   Steven Rostedt <srostedt@redhat.com> | 2008-11-12 15:24:24 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-11-12 22:28:25 +0100 |
| commit | 80e5ea4506791af206266c5921c97f11d3b17866 (patch) | |
| tree | 847eb231f1c98377bdd600a801657a338cd1baa1 /kernel/trace/trace.h | |
| parent | ftrace: rename unlikely iter_ctrl to branch (diff) | |
| download | linux-dev-80e5ea4506791af206266c5921c97f11d3b17866.tar.xz linux-dev-80e5ea4506791af206266c5921c97f11d3b17866.zip | |
ftrace: add tracer called branch
Impact: added new branch tracer
Currently the tracing of branch profiling (unlikelys and likelys hit)
is only activated by the iter_ctrl. This patch adds a tracer called
"branch" that will just trace the branch profiling. The advantage
of adding this tracer is that it can be added to the ftrace selftests
on startup.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 7fbf37b27453..9e015f5bea1d 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -420,6 +420,8 @@ extern int trace_selftest_startup_sched_switch(struct tracer *trace, struct trace_array *tr); extern int trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr); +extern int trace_selftest_startup_branch(struct tracer *trace, + struct trace_array *tr); #endif /* CONFIG_FTRACE_STARTUP_TEST */ extern void *head_page(struct trace_array_cpu *data); |