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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-02-21 16:05:50 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-02-21 22:27:59 -0300 |
commit | e603dc15072c7fec0ae263597e6dabc3bb4c5c5b (patch) | |
tree | a4fa6e1a548570ce71b8ed97399933de7303c321 /tools/perf/util/cgroup.h | |
parent | fbee632d0ca9f4073a3fefb9a843eac8af036b0f (diff) | |
download | talos-op-linux-e603dc15072c7fec0ae263597e6dabc3bb4c5c5b.tar.gz talos-op-linux-e603dc15072c7fec0ae263597e6dabc3bb4c5c5b.zip |
perf evsel: Fix inverted test for fixing up attr.inherit flag
The kernel refuses mmapping an event with the inherit flag set for
something that is systemwide (cpu == -1), and the evsel layer got this
reversed at some point, fix it.
The symtom was that the --pid and --tid parameters for 'perf record' and
'perf top' returned with -EINVAL, like:
# /tmp/build-perf/perf record -v -fo/tmp/perf.data -p 1042
Warning: ... trying to fall back to cpu-clock-ticks
Fatal: failed to mmap with 22 (Invalid argument)
Reported-by: David Ahern <dsahern@gmail.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/perf/util/cgroup.h')
0 files changed, 0 insertions, 0 deletions