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| author | Mark Rutland <mark.rutland@arm.com> | 2018-02-05 16:41:58 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-02-20 11:34:54 +0000 |
| commit | 0dc1a1851af1d593eee248b94c1277c7c7ccbbce (patch) | |
| tree | f32aed65915b0416167c0ec6e867ce0a25fc2307 /drivers/perf/arm_pmu_acpi.c | |
| parent | d3d5aac206b4e9e569a22fe1811c909dde17587c (diff) | |
| download | linux-stable-0dc1a1851af1d593eee248b94c1277c7c7ccbbce.tar.gz linux-stable-0dc1a1851af1d593eee248b94c1277c7c7ccbbce.tar.bz2 linux-stable-0dc1a1851af1d593eee248b94c1277c7c7ccbbce.zip | |
arm_pmu: add armpmu_alloc_atomic()
In ACPI systems, we don't know the makeup of CPUs until we hotplug them
on, and thus have to allocate the PMU datastructures at hotplug time.
Thus, we must use GFP_ATOMIC allocations.
Let's add an armpmu_alloc_atomic() that we can use in this case.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf/arm_pmu_acpi.c')
| -rw-r--r-- | drivers/perf/arm_pmu_acpi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c index 705f1a390e31..30c5f2bbce59 100644 --- a/drivers/perf/arm_pmu_acpi.c +++ b/drivers/perf/arm_pmu_acpi.c @@ -127,7 +127,7 @@ static struct arm_pmu *arm_pmu_acpi_find_alloc_pmu(void) return pmu; } - pmu = armpmu_alloc(); + pmu = armpmu_alloc_atomic(); if (!pmu) { pr_warn("Unable to allocate PMU for CPU%d\n", smp_processor_id()); |