diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 37602e722336..c2234494f40c 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -846,6 +846,17 @@ static inline int ftrace_graph_notrace_addr(unsigned long addr) return 0; } #endif /* CONFIG_DYNAMIC_FTRACE */ + +extern unsigned int fgraph_max_depth; + +static inline bool ftrace_graph_ignore_func(struct ftrace_graph_ent *trace) +{ + /* trace it when it is-nested-in or is a function enabled. */ + return !(trace->depth || ftrace_graph_addr(trace->func)) || + (trace->depth < 0) || + (fgraph_max_depth && trace->depth >= fgraph_max_depth); +} + #else /* CONFIG_FUNCTION_GRAPH_TRACER */ static inline enum print_line_t print_graph_function_flags(struct trace_iterator *iter, u32 flags) |