2 files changed, 9 insertions, 3 deletions

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 5a7035c5c523..115db9e06ecd 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -117,6 +117,9 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 --sched::
         Accrue thread runtime and provide a summary at the end of the session.
 
+--failure::
+        Show only syscalls that failed, i.e. that returned < 0.
+
 -i::
 --input::
         Process events from a given perf data file.
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 87b95c9410b4..4e03f0f68241 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -112,6 +112,7 @@ struct trace {
         bool                    multiple_threads;
         bool                    summary;
         bool                    summary_only;
+        bool                    failure_only;
         bool                    show_comm;
         bool                    print_sample;
         bool                    show_tool_stats;
@@ -1565,7 +1566,7 @@ static int trace__printf_interrupted_entry(struct trace *trace)
         struct thread_trace *ttrace;
         size_t printed;
 
-        if (trace->current == NULL)
+        if (trace->failure_only || trace->current == NULL)
                 return 0;
 
         ttrace = thread__priv(trace->current);
@@ -1638,7 +1639,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
                                            args, trace, thread);
 
         if (sc->is_exit) {
-                if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) {
+                if (!(trace->duration_filter || trace->summary_only || trace->failure_only || trace->min_stack)) {
                         trace__fprintf_entry_head(trace, thread, 0, false, ttrace->entry_time, trace->output);
                         fprintf(trace->output, "%-70s)\n", ttrace->entry_str);
                 }
@@ -1742,7 +1743,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
                 }
         }
 
-        if (trace->summary_only)
+        if (trace->summary_only || (ret >= 0 && trace->failure_only))
                 goto out;
 
         trace__fprintf_entry_head(trace, thread, duration, duration_calculated, ttrace->entry_time, trace->output);
@@ -3087,6 +3088,8 @@ int cmd_trace(int argc, const char **argv)
         OPT_INCR('v', "verbose", &verbose, "be more verbose"),
         OPT_BOOLEAN('T', "time", &trace.full_time,
                     "Show full timestamp, not time relative to first start"),
+        OPT_BOOLEAN(0, "failure", &trace.failure_only,
+                    "Show only syscalls that failed"),
         OPT_BOOLEAN('s', "summary", &trace.summary_only,
                     "Show only syscall summary with statistics"),
         OPT_BOOLEAN('S', "with-summary", &trace.summary,