diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:07:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:07:36 +0200 |
| commit | 27d6e47f8e133167af51a3e39548cd3e9bed07da (patch) | |
| tree | 069abe69fc8e247ef9ca4443afc11d04aa1e723c /arch/s390/kernel/perf_cpum_sf.c | |
| parent | 9dc86c234e845a5f60c5af013e647795c784df87 (diff) | |
| parent | 4f5cafb5cb8471e54afdc9054d973535614f7675 (diff) | |
Merge 5.4-rc3 into staging-next
We want the staging driver fixes in here as well to build on and test
with.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390/kernel/perf_cpum_sf.c')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index 544a02e944c6..3d8b12a9a6ff 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -803,6 +803,12 @@ static int __hw_perf_event_init(struct perf_event *event) goto out; } + if (si.ribm & CPU_MF_SF_RIBM_NOTAV) { + pr_warn("CPU Measurement Facility sampling is temporarily not available\n"); + err = -EBUSY; + goto out; + } + /* Always enable basic sampling */ SAMPL_FLAGS(hwc) = PERF_CPUM_SF_BASIC_MODE; @@ -895,7 +901,7 @@ static int cpumsf_pmu_event_init(struct perf_event *event) /* Check online status of the CPU to which the event is pinned */ if (event->cpu >= 0 && !cpu_online(event->cpu)) - return -ENODEV; + return -ENODEV; /* Force reset of idle/hv excludes regardless of what the * user requested. |