diff options
Diffstat (limited to 'kernel/trace/trace_functions.c')
| -rw-r--r-- | kernel/trace/trace_functions.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index f67aec5bb771..f93723ca66bc 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -131,10 +131,9 @@ function_trace_call(unsigned long ip, unsigned long parent_ip, { struct trace_array *tr = op->private; struct trace_array_cpu *data; - unsigned long flags; + unsigned int trace_ctx; int bit; int cpu; - int pc; if (unlikely(!tr->function_enabled)) return; @@ -143,15 +142,14 @@ function_trace_call(unsigned long ip, unsigned long parent_ip, if (bit < 0) return; - pc = preempt_count(); + trace_ctx = tracing_gen_ctx(); preempt_disable_notrace(); cpu = smp_processor_id(); data = per_cpu_ptr(tr->array_buffer.data, cpu); - if (!atomic_read(&data->disabled)) { - local_save_flags(flags); - trace_function(tr, ip, parent_ip, flags, pc); - } + if (!atomic_read(&data->disabled)) + trace_function(tr, ip, parent_ip, trace_ctx); + ftrace_test_recursion_unlock(bit); preempt_enable_notrace(); } @@ -183,7 +181,7 @@ function_stack_trace_call(unsigned long ip, unsigned long parent_ip, unsigned long flags; long disabled; int cpu; - int pc; + unsigned int trace_ctx; if (unlikely(!tr->function_enabled)) return; @@ -198,9 +196,9 @@ function_stack_trace_call(unsigned long ip, unsigned long parent_ip, disabled = atomic_inc_return(&data->disabled); if (likely(disabled == 1)) { - pc = preempt_count(); - trace_function(tr, ip, parent_ip, flags, pc); - __trace_stack(tr, flags, STACK_SKIP, pc); + trace_ctx = tracing_gen_ctx_flags(flags); + trace_function(tr, ip, parent_ip, trace_ctx); + __trace_stack(tr, trace_ctx, STACK_SKIP); } atomic_dec(&data->disabled); @@ -403,13 +401,11 @@ ftrace_traceoff(unsigned long ip, unsigned long parent_ip, static __always_inline void trace_stack(struct trace_array *tr) { - unsigned long flags; - int pc; + unsigned int trace_ctx; - local_save_flags(flags); - pc = preempt_count(); + trace_ctx = tracing_gen_ctx(); - __trace_stack(tr, flags, FTRACE_STACK_SKIP, pc); + __trace_stack(tr, trace_ctx, FTRACE_STACK_SKIP); } static void |