diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2020-08-13 11:34:43 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-09-08 22:23:42 +1000 |
| commit | c0176429b7b07893a5c1fd38baff055c919ba9e3 (patch) | |
| tree | 620f668966ad6c1b4a75a918f22f8d509f62757b /tools/testing/selftests/powerpc/tm/tm-poison.c | |
| parent | 10bf59d923c2766ec8d6f0243481c865c7db9979 (diff) | |
selftests/powerpc: Fix TM tests when CPU 0 is offline
Several of the TM tests fail spuriously if CPU 0 is offline, because
they blindly try to affinitise to CPU 0.
Fix them by picking any online CPU and using that instead.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200813013445.686464-1-mpe@ellerman.id.au
Diffstat (limited to 'tools/testing/selftests/powerpc/tm/tm-poison.c')
| -rw-r--r-- | tools/testing/selftests/powerpc/tm/tm-poison.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/testing/selftests/powerpc/tm/tm-poison.c b/tools/testing/selftests/powerpc/tm/tm-poison.c index 977558497c16..29e5f26af7b9 100644 --- a/tools/testing/selftests/powerpc/tm/tm-poison.c +++ b/tools/testing/selftests/powerpc/tm/tm-poison.c @@ -26,7 +26,7 @@ int tm_poison_test(void) { - int pid; + int cpu, pid; cpu_set_t cpuset; uint64_t poison = 0xdeadbeefc0dec0fe; uint64_t unknown = 0; @@ -35,10 +35,13 @@ int tm_poison_test(void) SKIP_IF(!have_htm()); - /* Attach both Child and Parent to CPU 0 */ + cpu = pick_online_cpu(); + FAIL_IF(cpu < 0); + + // Attach both Child and Parent to the same CPU CPU_ZERO(&cpuset); - CPU_SET(0, &cpuset); - sched_setaffinity(0, sizeof(cpuset), &cpuset); + CPU_SET(cpu, &cpuset); + FAIL_IF(sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0); pid = fork(); if (!pid) { |