renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-18 02:04:05 +08:00
Code

perf/x86/intel/uncore: Don't use smp_processor_id() in validate_group()

Browse Source 
uncore_validate_group() can't call smp_processor_id() because it is
in preemptible context. Pass NUMA_NO_NODE to the allocator instead.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379400493-11505-1-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Yan, Zheng 2013-09-17 14:48:13 +08:00 committed by Ingo Molnar
parent c5ecceefdb
commit 73c4427c6c
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/kernel/cpu/perf_event_intel_uncore.c
View File

@ -2706,14 +2706,14 @@ static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box)
box->hrtimer.function = uncore_pmu_hrtimer;
}
struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, int cpu)
static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, int node)
{
struct intel_uncore_box *box;
int i, size;
size = sizeof(*box) + type->num_shared_regs * sizeof(struct intel_uncore_extra_reg);
box = kzalloc_node(size, GFP_KERNEL, cpu_to_node(cpu));
box = kzalloc_node(size, GFP_KERNEL, node);
if (!box)
return NULL;
@ -3031,7 +3031,7 @@ static int uncore_validate_group(struct intel_uncore_pmu *pmu,
struct intel_uncore_box *fake_box;
int ret = -EINVAL, n;
fake_box = uncore_alloc_box(pmu->type, smp_processor_id());
fake_box = uncore_alloc_box(pmu->type, NUMA_NO_NODE);
if (!fake_box)
return -ENOMEM;
@ -3294,7 +3294,7 @@ static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id
}
type = pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
box = uncore_alloc_box(type, 0);
box = uncore_alloc_box(type, NUMA_NO_NODE);
if (!box)
return -ENOMEM;
@ -3499,7 +3499,7 @@ static int uncore_cpu_prepare(int cpu, int phys_id)
if (pmu->func_id < 0)
pmu->func_id = j;
box = uncore_alloc_box(type, cpu);
box = uncore_alloc_box(type, cpu_to_node(cpu));
if (!box)
return -ENOMEM;