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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2013-03-08 10:40:07 -0500
committerSteven Rostedt <rostedt@goodmis.org>2013-03-15 00:35:54 -0400
commit153e8ed913b022d2003866a848af9fadc041403f (patch)
treef4e1281c8fa0e41fef569c903ed692b829647f96 /kernel/trace/trace_branch.c
parent55034cd6e648155393b0d665eef76b38d49ad6bf (diff)
downloadop-kernel-dev-153e8ed913b022d2003866a848af9fadc041403f.zip
op-kernel-dev-153e8ed913b022d2003866a848af9fadc041403f.tar.gz
tracing: Fix the branch tracer that broke with buffer change
The changce to add the trace_buffer struct to have the trace array have both the main buffer and max buffer broke the branch tracer because the change did not update that code. As the branch tracer adds a significant amount of overhead, and must be selected via a selection (not a allyesconfig) it was missed in testing. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_branch.c')
-rw-r--r--kernel/trace/trace_branch.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 6dadbef..d594da0 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -52,12 +52,12 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
local_irq_save(flags);
cpu = raw_smp_processor_id();
- data = per_cpu_ptr(tr->data, cpu);
+ data = per_cpu_ptr(tr->trace_buffer.data, cpu);
if (atomic_inc_return(&data->disabled) != 1)
goto out;
pc = preempt_count();
- buffer = tr->buffer;
+ buffer = tr->trace_buffer.buffer;
event = trace_buffer_lock_reserve(buffer, TRACE_BRANCH,
sizeof(*entry), flags, pc);
if (!event)
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