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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:09:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-14 07:09:59 +0200 |
| commit | bf7c1d95af67254957d1820ac112397001e1a9a9 (patch) | |
| tree | 3adbfbc15812cd4aad20c1ce708fe33b639e0392 /arch/s390/kernel/perf_cpum_sf.c | |
| parent | 1141a7522e3961e8d4b20db7495d4dfb1e07d7ae (diff) | |
| parent | 4f5cafb5cb8471e54afdc9054d973535614f7675 (diff) | |
| download | talos-op-linux-bf7c1d95af67254957d1820ac112397001e1a9a9.tar.gz talos-op-linux-bf7c1d95af67254957d1820ac112397001e1a9a9.zip | |
Merge 5.4-rc3 into usb-next
we want the USB fixes in here as well.
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. |
