11 files changed, 104 insertions, 66 deletions

diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index b67186228c89..2da9162262b0 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -474,7 +474,7 @@ static int test__basic_mmap(void)
         unsigned int nr_events[nsyscalls],
                      expected_nr_events[nsyscalls], i, j;
         struct perf_evsel *evsels[nsyscalls], *evsel;
-        int sample_size = perf_sample_size(attr.sample_type);
+        int sample_size = __perf_evsel__sample_size(attr.sample_type);
 
         for (i = 0; i < nsyscalls; ++i) {
                 char name[64];
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 0fe9adf76379..3c1b8a632101 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -35,22 +35,6 @@ const char *perf_event__name(unsigned int id)
         return perf_event__names[id];
 }
 
-int perf_sample_size(u64 sample_type)
-{
-        u64 mask = sample_type & PERF_SAMPLE_MASK;
-        int size = 0;
-        int i;
-
-        for (i = 0; i < 64; i++) {
-                if (mask & (1ULL << i))
-                        size++;
-        }
-
-        size *= sizeof(u64);
-
-        return size;
-}
-
 static struct perf_sample synth_sample = {
         .pid       = -1,
         .tid       = -1,
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index c08332871408..1d7f66488a88 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -82,8 +82,6 @@ struct perf_sample {
         struct ip_callchain *callchain;
 };
 
-int perf_sample_size(u64 sample_type);
-
 #define BUILD_ID_SIZE 20
 
 struct build_id_event {
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 50aa34879c33..b021ea9265c3 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -12,7 +12,6 @@
 #include "evlist.h"
 #include "evsel.h"
 #include "util.h"
-#include "debug.h"
 
 #include <sys/mman.h>
 
@@ -257,19 +256,15 @@ int perf_evlist__alloc_mmap(struct perf_evlist *evlist)
         return evlist->mmap != NULL ? 0 : -ENOMEM;
 }
 
-static int __perf_evlist__mmap(struct perf_evlist *evlist, struct perf_evsel *evsel,
+static int __perf_evlist__mmap(struct perf_evlist *evlist,
                                int idx, int prot, int mask, int fd)
 {
         evlist->mmap[idx].prev = 0;
         evlist->mmap[idx].mask = mask;
         evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot,
                                       MAP_SHARED, fd, 0);
-        if (evlist->mmap[idx].base == MAP_FAILED) {
-                if (evlist->cpus->map[idx] == -1 && evsel->attr.inherit)
-                        ui__warning("Inherit is not allowed on per-task "
-                                    "events using mmap.\n");
+        if (evlist->mmap[idx].base == MAP_FAILED)
                 return -1;
-        }
 
         perf_evlist__add_pollfd(evlist, fd);
         return 0;
@@ -289,7 +284,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m
 
                                 if (output == -1) {
                                         output = fd;
-                                        if (__perf_evlist__mmap(evlist, evsel, cpu,
+                                        if (__perf_evlist__mmap(evlist, cpu,
                                                                 prot, mask, output) < 0)
                                                 goto out_unmap;
                                 } else {
@@ -329,7 +324,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, in
 
                         if (output == -1) {
                                 output = fd;
-                                if (__perf_evlist__mmap(evlist, evsel, thread,
+                                if (__perf_evlist__mmap(evlist, thread,
                                                         prot, mask, output) < 0)
                                         goto out_unmap;
                         } else {
@@ -460,33 +455,46 @@ int perf_evlist__set_filters(struct perf_evlist *evlist)
         return 0;
 }
 
-u64 perf_evlist__sample_type(struct perf_evlist *evlist)
+bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist)
 {
-        struct perf_evsel *pos;
-        u64 type = 0;
-
-        list_for_each_entry(pos, &evlist->entries, node) {
-                if (!type)
-                        type = pos->attr.sample_type;
-                else if (type != pos->attr.sample_type)
-                        die("non matching sample_type");
+        struct perf_evsel *pos, *first;
+
+        pos = first = list_entry(evlist->entries.next, struct perf_evsel, node);
+
+        list_for_each_entry_continue(pos, &evlist->entries, node) {
+                if (first->attr.sample_type != pos->attr.sample_type)
+                        return false;
         }
 
-        return type;
+        return true;
 }
 
-bool perf_evlist__sample_id_all(const struct perf_evlist *evlist)
+u64 perf_evlist__sample_type(const struct perf_evlist *evlist)
+{
+        struct perf_evsel *first;
+
+        first = list_entry(evlist->entries.next, struct perf_evsel, node);
+        return first->attr.sample_type;
+}
+
+bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist)
 {
-        bool value = false, first = true;
-        struct perf_evsel *pos;
-
-        list_for_each_entry(pos, &evlist->entries, node) {
-                if (first) {
-                        value = pos->attr.sample_id_all;
-                        first = false;
-                } else if (value != pos->attr.sample_id_all)
-                        die("non matching sample_id_all");
+        struct perf_evsel *pos, *first;
+
+        pos = first = list_entry(evlist->entries.next, struct perf_evsel, node);
+
+        list_for_each_entry_continue(pos, &evlist->entries, node) {
+                if (first->attr.sample_id_all != pos->attr.sample_id_all)
+                        return false;
         }
 
-        return value;
+        return true;
+}
+
+bool perf_evlist__sample_id_all(const struct perf_evlist *evlist)
+{
+        struct perf_evsel *first;
+
+        first = list_entry(evlist->entries.next, struct perf_evsel, node);
+        return first->attr.sample_id_all;
 }
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 0a1ef1f051f0..b2b862374f37 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -66,7 +66,9 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid,
 void perf_evlist__delete_maps(struct perf_evlist *evlist);
 int perf_evlist__set_filters(struct perf_evlist *evlist);
 
-u64 perf_evlist__sample_type(struct perf_evlist *evlist);
-bool perf_evlist__sample_id_all(const struct perf_evlist *evlist);
+u64 perf_evlist__sample_type(const struct perf_evlist *evlist);
+bool perf_evlist__sample_id_all(const const struct perf_evlist *evlist);
 
+bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist);
+bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist);
 #endif /* __PERF_EVLIST_H */
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index cca29ededb5b..0239eb87b232 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -15,6 +15,22 @@
 
 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
 
+int __perf_evsel__sample_size(u64 sample_type)
+{
+        u64 mask = sample_type & PERF_SAMPLE_MASK;
+        int size = 0;
+        int i;
+
+        for (i = 0; i < 64; i++) {
+                if (mask & (1ULL << i))
+                        size++;
+        }
+
+        size *= sizeof(u64);
+
+        return size;
+}
+
 void perf_evsel__init(struct perf_evsel *evsel,
                       struct perf_event_attr *attr, int idx)
 {
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index f79bb2c09a6c..7e9366e4490b 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -149,4 +149,11 @@ static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
         return __perf_evsel__read(evsel, ncpus, nthreads, true);
 }
 
+int __perf_evsel__sample_size(u64 sample_type);
+
+static inline int perf_evsel__sample_size(struct perf_evsel *evsel)
+{
+        return __perf_evsel__sample_size(evsel->attr.sample_type);
+}
+
 #endif /* __PERF_EVSEL_H */
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 69436b3200a4..a9ac0504aabd 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -674,7 +674,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
         struct perf_evlist *evlist = &pevlist->evlist;
         union perf_event *event;
         int sample_id_all = 1, cpu;
-        static char *kwlist[] = {"sample_id_all", NULL, NULL};
+        static char *kwlist[] = {"cpu", "sample_id_all", NULL, NULL};
         int err;
 
         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
@@ -692,16 +692,14 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 
                 first = list_entry(evlist->entries.next, struct perf_evsel, node);
                 err = perf_event__parse_sample(event, first->attr.sample_type,
-                                               perf_sample_size(first->attr.sample_type),
+                                               perf_evsel__sample_size(first),
                                                sample_id_all, &pevent->sample);
-                if (err) {
-                        pr_err("Can't parse sample, err = %d\n", err);
-                        goto end;
-                }
-
+                if (err)
+                        return PyErr_Format(PyExc_OSError,
+                                            "perf: can't parse sample, err=%d", err);
                 return pyevent;
         }
-end:
+
         Py_INCREF(Py_None);
         return Py_None;
 }
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 64500fc78799..f5a8fbdd3f76 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -58,6 +58,16 @@ static int perf_session__open(struct perf_session *self, bool force)
                 goto out_close;
         }
 
+        if (!perf_evlist__valid_sample_type(self->evlist)) {
+                pr_err("non matching sample_type");
+                goto out_close;
+        }
+
+        if (!perf_evlist__valid_sample_id_all(self->evlist)) {
+                pr_err("non matching sample_id_all");
+                goto out_close;
+        }
+
         self->size = input_stat.st_size;
         return 0;
 
@@ -97,7 +107,7 @@ out:
 void perf_session__update_sample_type(struct perf_session *self)
 {
         self->sample_type = perf_evlist__sample_type(self->evlist);
-        self->sample_size = perf_sample_size(self->sample_type);
+        self->sample_size = __perf_evsel__sample_size(self->sample_type);
         self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
         perf_session__id_header_size(self);
 }
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 1fd29b2daa92..cef28e6632b9 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -788,7 +788,7 @@ sub wait_for_input
 
 sub reboot_to {
     if ($reboot_type eq "grub") {
-        run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch; reboot)'";
+        run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch && reboot)'";
         return;
     }
 
@@ -1480,7 +1480,7 @@ sub process_config_ignore {
         or dodie "Failed to read $config";
 
     while (<IN>) {
-        if (/^(.*?(CONFIG\S*)(=.*| is not set))/) {
+        if (/^((CONFIG\S*)=.*)/) {
             $config_ignore{$2} = $1;
         }
     }
@@ -1638,7 +1638,7 @@ sub run_config_bisect {
         if (!$found) {
             # try the other half
             doprint "Top half produced no set configs, trying bottom half\n";
-            @tophalf = @start_list[$half .. $#start_list];
+            @tophalf = @start_list[$half + 1 .. $#start_list];
             create_config @tophalf;
             read_current_config \%current_config;
             foreach my $config (@tophalf) {
@@ -1690,7 +1690,7 @@ sub run_config_bisect {
         # remove half the configs we are looking at and see if
         # they are good.
         $half = int($#start_list / 2);
-    } while ($half > 0);
+    } while ($#start_list > 0);
 
     # we found a single config, try it again unless we are running manually
 
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index df0c6d2c3860..74d3331bdaf9 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -198,6 +198,14 @@ const struct option longopts[] = {
                 .val = 'h',
         },
         {
+                .name = "event-idx",
+                .val = 'E',
+        },
+        {
+                .name = "no-event-idx",
+                .val = 'e',
+        },
+        {
                 .name = "indirect",
                 .val = 'I',
         },
@@ -211,13 +219,17 @@ const struct option longopts[] = {
 
 static void help()
 {
-        fprintf(stderr, "Usage: virtio_test [--help] [--no-indirect]\n");
+        fprintf(stderr, "Usage: virtio_test [--help]"
+                " [--no-indirect]"
+                " [--no-event-idx]"
+                "\n");
 }
 
 int main(int argc, char **argv)
 {
         struct vdev_info dev;
-        unsigned long long features = 1ULL << VIRTIO_RING_F_INDIRECT_DESC;
+        unsigned long long features = (1ULL << VIRTIO_RING_F_INDIRECT_DESC) |
+                (1ULL << VIRTIO_RING_F_EVENT_IDX);
         int o;
 
         for (;;) {
@@ -228,6 +240,9 @@ int main(int argc, char **argv)
                 case '?':
                         help();
                         exit(2);
+                case 'e':
+                        features &= ~(1ULL << VIRTIO_RING_F_EVENT_IDX);
+                        break;
                 case 'h':
                         help();
                         goto done;