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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-11 16:58:54 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-11 17:31:26 -0200
commit4ad9f594d7199c99f6b1b3ef88c64bd5920a4592 (patch)
tree29786c4cc76908f6313f1d9fc55088fde9e61597 /tools
parentcc841580aa58ad7498b23e282859d07f8b721e24 (diff)
downloadlinux-2.6.38-lt-ux500-4ad9f594d7199c99f6b1b3ef88c64bd5920a4592.tar.gz
Revert "perf tools: Emit clearer message for sys_perf_event_open ENOENT return"
This reverts commit aa7bc7ef73efc46d7c3a0e185eefaf85744aec98. It removed the fallback from hardware profiling to software profiling. .e.g., in a VM with no PMU. Reported-by: David Ahern <daahern@cisco.com> Cc: David Ahern <daahern@cisco.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-record.c3
-rw-r--r--tools/perf/builtin-top.c2
2 files changed, 0 insertions, 5 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index aa7ece39765..1210e6484ad 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -331,9 +331,6 @@ try_again:
else if (err == ENODEV && cpu_list) {
die("No such device - did you specify"
" an out-of-range profile CPU?\n");
- } else if (err == ENOENT) {
- die("%s event is not supported. ",
- event_name(evsel));
} else if (err == EINVAL && sample_id_all_avail) {
/*
* Old kernel, no attr->sample_id_type_all field
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 568b1950e63..05344c6210a 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1247,8 +1247,6 @@ try_again:
die("Permission error - are you root?\n"
"\t Consider tweaking"
" /proc/sys/kernel/perf_event_paranoid.\n");
- if (err == ENOENT)
- die("%s event is not supported. ", event_name(evsel));
/*
* If it's cycles then fall back to hrtimer
* based cpu-clock-tick sw counter, which