diff options
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 6e79408674aa..50820887dce9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -468,6 +468,18 @@ static inline void trace_access_lock_init(void) #endif +#ifdef CONFIG_STACKTRACE +static void __ftrace_trace_stack(struct ring_buffer *buffer, + unsigned long flags, + int skip, int pc, struct pt_regs *regs); +#else +static inline void __ftrace_trace_stack(struct ring_buffer *buffer, + unsigned long flags, + int skip, int pc, struct pt_regs *regs) +{ +} +#endif + /* trace_flags holds trace_options default values */ unsigned long trace_flags = TRACE_ITER_PRINT_PARENT | TRACE_ITER_PRINTK | TRACE_ITER_ANNOTATE | TRACE_ITER_CONTEXT_INFO | TRACE_ITER_SLEEP_TIME | @@ -1744,7 +1756,8 @@ void trace_buffer_unlock_commit_regs(struct ring_buffer *buffer, { __buffer_unlock_commit(buffer, event); - ftrace_trace_stack_regs(buffer, flags, 0, pc, regs); + if (trace_flags & TRACE_ITER_STACKTRACE) + __ftrace_trace_stack(buffer, flags, 0, pc, regs); ftrace_trace_userstack(buffer, flags, pc); } EXPORT_SYMBOL_GPL(trace_buffer_unlock_commit_regs); @@ -1873,15 +1886,6 @@ static void __ftrace_trace_stack(struct ring_buffer *buffer, } -void ftrace_trace_stack_regs(struct ring_buffer *buffer, unsigned long flags, - int skip, int pc, struct pt_regs *regs) -{ - if (!(trace_flags & TRACE_ITER_STACKTRACE)) - return; - - __ftrace_trace_stack(buffer, flags, skip, pc, regs); -} - void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags, int skip, int pc) { |