diff options
Diffstat (limited to 'kernel/trace/trace_irqsoff.c')
| -rw-r--r-- | kernel/trace/trace_irqsoff.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c index 03cdff84d026..7758bc0617cb 100644 --- a/kernel/trace/trace_irqsoff.c +++ b/kernel/trace/trace_irqsoff.c @@ -175,6 +175,18 @@ static int irqsoff_graph_entry(struct ftrace_graph_ent *trace) int ret; int pc; + if (ftrace_graph_ignore_func(trace)) + return 0; + /* + * Do not trace a function if it's filtered by set_graph_notrace. + * Make the index of ret stack negative to indicate that it should + * ignore further functions. But it needs its own ret stack entry + * to recover the original index in order to continue tracing after + * returning from the function. + */ + if (ftrace_graph_notrace_addr(trace->func)) + return 1; + if (!func_prolog_dec(tr, &data, &flags)) return 0; @@ -286,7 +298,7 @@ static void irqsoff_print_header(struct seq_file *s) /* * Should this new latency be reported/recorded? */ -static bool report_latency(struct trace_array *tr, cycle_t delta) +static bool report_latency(struct trace_array *tr, u64 delta) { if (tracing_thresh) { if (delta < tracing_thresh) @@ -304,7 +316,7 @@ check_critical_timing(struct trace_array *tr, unsigned long parent_ip, int cpu) { - cycle_t T0, T1, delta; + u64 T0, T1, delta; unsigned long flags; int pc; |