perf mmap: Simplify perf_mmap__consume()

It isn't necessary to pass the 'overwrite' argument to
perf_mmap__consume().  Discard it.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1520350567-80082-6-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
index 7f82d91..a9bc77d 100644 (file)
--- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c
+++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
@@ -134,7 +134,7 @@ int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest __maybe
                                comm2_time = sample.time;
                        }
 next_event:
-                       perf_mmap__consume(md, false);
+                       perf_mmap__consume(md);
                }
                perf_mmap__read_done(md);
        }

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index d2703d3..165c044 100644 (file)
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -760,7 +760,7 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
        while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
                err = perf_evlist__parse_sample_timestamp(evlist, event, &timestamp);
                if (err) {
-                       perf_mmap__consume(md, false);
+                       perf_mmap__consume(md);
                        pr_err("Failed to parse sample\n");
                        return -1;
                }
@@ -770,7 +770,7 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
                 * FIXME: Here we can't consume the event, as perf_session__queue_event will
                 *        point to it, and it'll get possibly overwritten by the kernel.
                 */
-               perf_mmap__consume(md, false);
+               perf_mmap__consume(md);
 
                if (err) {
                        pr_err("Failed to enqueue sample: %d\n", err);

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index bb4f9fa..11b4a41 100644 (file)
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -879,7 +879,7 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
                } else
                        ++session->evlist->stats.nr_unknown_events;
 next_event:
-               perf_mmap__consume(md, opts->overwrite);
+               perf_mmap__consume(md);
        }
 
        perf_mmap__read_done(md);

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5b81060..27eadf3 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2522,7 +2522,7 @@ again:
 
                        trace__handle_event(trace, event, &sample);
 next_event:
-                       perf_mmap__consume(md, false);
+                       perf_mmap__consume(md);
 
                        if (interrupted)
                                goto out_disable;

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 03ed8c7..f7c199a 100644 (file)
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -420,7 +420,7 @@ static int process_events(struct machine *machine, struct perf_evlist *evlist,
 
                while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
                        ret = process_event(machine, evlist, event, state);
-                       perf_mmap__consume(md, false);
+                       perf_mmap__consume(md);
                        if (ret < 0)
                                return ret;
                }

diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index 4590d8f..1f1db59 100644 (file)
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -42,7 +42,7 @@ static int find_comm(struct perf_evlist *evlist, const char *comm)
                            (pid_t)event->comm.tid == getpid() &&
                            strcmp(event->comm.comm, comm) == 0)
                                found += 1;
-                       perf_mmap__consume(md, false);
+                       perf_mmap__consume(md);
                }
                perf_mmap__read_done(md);
        }

diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index 44c58d6..f473e10 100644 (file)
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -135,7 +135,7 @@ int test__basic_mmap(struct test *test __maybe_unused, int subtest __maybe_unuse
                        goto out_delete_evlist;
                }
                nr_events[evsel->idx]++;
-               perf_mmap__consume(md, false);
+               perf_mmap__consume(md);
        }
        perf_mmap__read_done(md);
 

diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 620b210..7837ae9 100644 (file)
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -101,7 +101,7 @@ int test__syscall_openat_tp_fields(struct test *test __maybe_unused, int subtest
                                ++nr_events;
 
                                if (type != PERF_RECORD_SAMPLE) {
-                                       perf_mmap__consume(md, false);
+                                       perf_mmap__consume(md);
                                        continue;
                                }
 

diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 31f3f70..6ff5f99 100644 (file)
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -272,7 +272,7 @@ int test__PERF_RECORD(struct test *test __maybe_unused, int subtest __maybe_unus
                                        ++errs;
                                }
 
-                               perf_mmap__consume(md, false);
+                               perf_mmap__consume(md);
                        }
                        perf_mmap__read_done(md);
                }

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index e6320e2..b58297b 100644 (file)
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -114,7 +114,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
                total_periods += sample.period;
                nr_samples++;
 next_event:
-               perf_mmap__consume(md, false);
+               perf_mmap__consume(md);
        }
        perf_mmap__read_done(md);
 

diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 10c4dcd..dbf9e20 100644 (file)
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -270,7 +270,7 @@ static int process_events(struct perf_evlist *evlist,
                while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
                        cnt += 1;
                        ret = add_event(evlist, &events, event);
-                        perf_mmap__consume(md, false);
+                        perf_mmap__consume(md);
                        if (ret < 0)
                                goto out_free_nodes;
                }

diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 02b0888..5aa2e68 100644 (file)
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -120,7 +120,7 @@ retry:
                if (event->header.type == PERF_RECORD_EXIT)
                        nr_exit++;
 
-               perf_mmap__consume(md, false);
+               perf_mmap__consume(md);
        }
        perf_mmap__read_done(md);
 

diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
index 8a2dac9..62312e0 100644 (file)
--- a/tools/perf/util/mmap.c
+++ b/tools/perf/util/mmap.c
@@ -118,7 +118,7 @@ void perf_mmap__put(struct perf_mmap *map)
                perf_mmap__munmap(map);
 }
 
-void perf_mmap__consume(struct perf_mmap *map, bool overwrite __maybe_unused)
+void perf_mmap__consume(struct perf_mmap *map)
 {
        if (!map->overwrite) {
                u64 old = map->prev;
@@ -260,7 +260,7 @@ int perf_mmap__read_init(struct perf_mmap *md, bool overwrite,
                        WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
 
                        md->prev = head;
-                       perf_mmap__consume(md, overwrite);
+                       perf_mmap__consume(md);
                        return -EAGAIN;
                }
 
@@ -314,7 +314,7 @@ int perf_mmap__push(struct perf_mmap *md, void *to,
        }
 
        md->prev = head;
-       perf_mmap__consume(md, md->overwrite);
+       perf_mmap__consume(md);
 out:
        return rc;
 }

diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
index 65f5b26..043916a 100644 (file)
--- a/tools/perf/util/mmap.h
+++ b/tools/perf/util/mmap.h
@@ -66,7 +66,7 @@ void perf_mmap__munmap(struct perf_mmap *map);
 void perf_mmap__get(struct perf_mmap *map);
 void perf_mmap__put(struct perf_mmap *map);
 
-void perf_mmap__consume(struct perf_mmap *map, bool overwrite);
+void perf_mmap__consume(struct perf_mmap *map);
 
 static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
 {

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 35fb5ef..ca077f8 100644 (file)
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1013,7 +1013,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
                err = perf_evsel__parse_sample(evsel, event, &pevent->sample);
 
                /* Consume the even only after we parsed it out. */
-               perf_mmap__consume(md, false);
+               perf_mmap__consume(md);
 
                if (err)
                        return PyErr_Format(PyExc_OSError,