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Commit 76ba0ecd authored by Rusty Russell's avatar Rusty Russell
Browse files

cpumask: use cpumask_var_t in uv_flush_tlb_others. 



Impact: remove cpumask_t, reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 5c6cb5e2

arch/x86/kernel/tlb_uv.c

+7 −2
Original line number Diff line number Diff line
@@ -275,6 +275,8 @@ const struct cpumask *uv_flush_send_and_wait(int cpu, int this_blade, 
	return NULL;

}



static DEFINE_PER_CPU(cpumask_var_t, uv_flush_tlb_mask);



/**

 * uv_flush_tlb_others - globally purge translation cache of a virtual

 * address or all TLB's
@@ -304,8 +306,7 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, 
					  struct mm_struct *mm,

					  unsigned long va, unsigned int cpu)

{

	static DEFINE_PER_CPU(cpumask_t, flush_tlb_mask);

	struct cpumask *flush_mask = &__get_cpu_var(flush_tlb_mask);

	struct cpumask *flush_mask = __get_cpu_var(uv_flush_tlb_mask);

	int i;

	int bit;

	int blade;
@@ -755,6 +756,10 @@ static int __init uv_bau_init(void) 
	if (!is_uv_system())

		return 0;



	for_each_possible_cpu(cur_cpu)

		alloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),

				       GFP_KERNEL, cpu_to_node(cur_cpu));



	uv_bau_retry_limit = 1;

	uv_nshift = uv_hub_info->n_val;

	uv_mmask = (1UL << uv_hub_info->n_val) - 1;