diff options
| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2020-04-29 19:19:47 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-05-05 16:35:29 -0300 |
| commit | 846de4371fdfddfa49481e3d04884539870dc127 (patch) | |
| tree | 19c152a5d5cc8bdf4124bdf320f30d7bbe1476df /crypto/keywrap.c | |
| parent | 4599d292128d89e4cf866a0ea9a9b047a2de8418 (diff) | |
perf tools: Fix reading new topology attribute "core_cpus"
Check if access("devices/system/cpu/cpu%d/topology/core_cpus", F_OK)
fails, which will happen unless the current directory is "/sys".
Simply try to read this file first.
Fixes: 0ccdb8407a46 ("perf tools: Apply new CPU topology sysfs attributes")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/158817718710.747528.11009278875028211991.stgit@buzz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'crypto/keywrap.c')
0 files changed, 0 insertions, 0 deletions