From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: hpa@zytor.com, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86, tlb: small cleanup for native_flush_tlb_others
Date: Mon, 14 Mar 2011 14:55:31 +0800 [thread overview]
Message-ID: <4D7DBBE3.1010104@cn.fujitsu.com> (raw)
Use smp_processor_id instead of get_cpu and put_cpu since
the caller has already disabled preemption
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/mm/tlb.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 6acc724..92849d0 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -211,11 +211,10 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
if (is_uv_system()) {
unsigned int cpu;
- cpu = get_cpu();
+ cpu = smp_processor_id();
cpumask = uv_flush_tlb_others(cpumask, mm, va, cpu);
if (cpumask)
flush_tlb_others_ipi(cpumask, mm, va);
- put_cpu();
return;
}
flush_tlb_others_ipi(cpumask, mm, va);
--
1.7.4
next reply other threads:[~2011-03-14 6:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-14 6:55 Xiao Guangrong [this message]
2011-03-14 12:33 ` [PATCH] x86, tlb: small cleanup for native_flush_tlb_others Ingo Molnar
2011-03-14 12:39 ` Ingo Molnar
2011-03-15 1:57 ` Xiao Guangrong
2011-03-15 7:49 ` [tip:x86/mm] x86, tlb, UV: Do small micro-optimization for native_flush_tlb_others() tip-bot for Xiao Guangrong
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