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authorSteven Rostedt <rostedt@goodmis.org>2025-05-05 17:21:14 -0400
committerSteven Rostedt (Google) <rostedt@goodmis.org>2025-05-09 15:19:10 -0400
commitcf64792f0adb9488b66da1d8e1805d51bdcebeab (patch)
tree0b8ff5a11228a58befce559491512037236bda86
parent092a38565ed87cbda6fe7dd16c742df6f907483e (diff)
tracing: branch: Use trace_tracing_is_on_cpu() instead of "disabled" field
The branch tracer currently checks the per CPU "disabled" field to know if tracing is enabled or not for the CPU. As the "disabled" value is not used anymore to turn of tracing generically, use tracing_tracer_is_on_cpu() instead. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/20250505212236.224658526@goodmis.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-rw-r--r--kernel/trace/trace_branch.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 6d08a5523ce0..6809b370e991 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -32,7 +32,6 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect)
{
struct trace_array *tr = branch_tracer;
struct trace_buffer *buffer;
- struct trace_array_cpu *data;
struct ring_buffer_event *event;
struct trace_branch *entry;
unsigned long flags;
@@ -54,8 +53,7 @@ probe_likely_condition(struct ftrace_likely_data *f, int val, int expect)
raw_local_irq_save(flags);
current->trace_recursion |= TRACE_BRANCH_BIT;
- data = this_cpu_ptr(tr->array_buffer.data);
- if (atomic_read(&data->disabled))
+ if (!tracer_tracing_is_on_cpu(tr, raw_smp_processor_id()))
goto out;
trace_ctx = tracing_gen_ctx_flags(flags);