diff options
| -rw-r--r-- | arch/x86/kernel/tlb_64.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c index 38836aef51b4..7a3f9891302d 100644 --- a/arch/x86/kernel/tlb_64.c +++ b/arch/x86/kernel/tlb_64.c @@ -202,16 +202,17 @@ void native_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm, unsigned long va) { if (is_uv_system()) { - cpumask_var_t after_uv_flush; - - if (alloc_cpumask_var(&after_uv_flush, GFP_ATOMIC)) { - cpumask_andnot(after_uv_flush, - cpumask, cpumask_of(smp_processor_id())); - if (!uv_flush_tlb_others(after_uv_flush, mm, va)) - flush_tlb_others_ipi(after_uv_flush, mm, va); - free_cpumask_var(after_uv_flush); - return; - } + /* FIXME: could be an percpu_alloc'd thing */ + static DEFINE_PER_CPU(cpumask_t, flush_tlb_mask); + struct cpumask *after_uv_flush = &get_cpu_var(flush_tlb_mask); + + cpumask_andnot(after_uv_flush, cpumask, + cpumask_of(smp_processor_id())); + if (!uv_flush_tlb_others(after_uv_flush, mm, va)) + flush_tlb_others_ipi(after_uv_flush, mm, va); + + put_cpu_var(flush_tlb_uv_cpumask); + return; } flush_tlb_others_ipi(cpumask, mm, va); } |