diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 1ea51ab53edf..9001460291bb 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -753,6 +753,21 @@ enum print_line_t print_trace_line(struct trace_iterator *iter); extern char trace_find_mark(unsigned long long duration); +struct ftrace_hash { + unsigned long size_bits; + struct hlist_head *buckets; + unsigned long count; + struct rcu_head rcu; +}; + +struct ftrace_func_entry * +ftrace_lookup_ip(struct ftrace_hash *hash, unsigned long ip); + +static bool __always_inline ftrace_hash_empty(struct ftrace_hash *hash) +{ + return !hash || !hash->count; +} + /* Standard output formatting function used for function return traces */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER @@ -787,7 +802,6 @@ extern void __trace_graph_return(struct trace_array *tr, struct ftrace_graph_ret *trace, unsigned long flags, int pc); - #ifdef CONFIG_DYNAMIC_FTRACE /* TODO: make this variable */ #define FTRACE_GRAPH_MAX_FUNCS 32 |