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-rw-r--r--tools/perf/builtin-top.c23
1 files changed, 17 insertions, 6 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index dd162aa24baa..ecff31257eb3 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -857,6 +857,9 @@ static void perf_top__start_counters(struct perf_top *top)
857 attr->mmap = 1; 857 attr->mmap = 1;
858 attr->comm = 1; 858 attr->comm = 1;
859 attr->inherit = top->inherit; 859 attr->inherit = top->inherit;
860fallback_missing_features:
861 if (top->exclude_guest_missing)
862 attr->exclude_guest = attr->exclude_host = 0;
860retry_sample_id: 863retry_sample_id:
861 attr->sample_id_all = top->sample_id_all_avail ? 1 : 0; 864 attr->sample_id_all = top->sample_id_all_avail ? 1 : 0;
862try_again: 865try_again:
@@ -868,12 +871,20 @@ try_again:
868 if (err == EPERM || err == EACCES) { 871 if (err == EPERM || err == EACCES) {
869 ui__error_paranoid(); 872 ui__error_paranoid();
870 goto out_err; 873 goto out_err;
871 } else if (err == EINVAL && top->sample_id_all_avail) { 874 } else if (err == EINVAL) {
872 /* 875 if (!top->exclude_guest_missing &&
873 * Old kernel, no attr->sample_id_type_all field 876 (attr->exclude_guest || attr->exclude_host)) {
874 */ 877 pr_debug("Old kernel, cannot exclude "
875 top->sample_id_all_avail = false; 878 "guest or host samples.\n");
876 goto retry_sample_id; 879 top->exclude_guest_missing = true;
880 goto fallback_missing_features;
881 } else if (top->sample_id_all_avail) {
882 /*
883 * Old kernel, no attr->sample_id_type_all field
884 */
885 top->sample_id_all_avail = false;
886 goto retry_sample_id;
887 }
877 } 888 }
878 /* 889 /*
879 * If it's cycles then fall back to hrtimer 890 * If it's cycles then fall back to hrtimer