Commit-ID: 76ba0ecda0de9accea9a91cb6dbde46782110e1c
Gitweb: http://git.kernel.org/tip/76ba0ecda0de9accea9a91cb6dbde46782110e1c
Author: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
AuthorDate: Fri, 13 Mar 2009 14:49:57 +1030
Commit: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
CommitDate: Fri, 13 Mar 2009 14:49:57 +1030
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: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
---
arch/x86/kernel/tlb_uv.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index d038b9c..8afb691 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -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;
--
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