linux-kernel - [PATCH] x86: remove duplicated code with pcpu_need

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Date:	Wed, 01 Apr 2009 00:27:44 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tejun Heo <tj@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
CC:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org
Subject: [PATCH] x86: remove duplicated code with pcpu_need_numa()


Impact: clean up

those code pcpu_need_numa(), should be removed.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 arch/x86/kernel/setup_percpu.c |   14 --------------
 1 file changed, 14 deletions(-)

Index: linux-2.6/arch/x86/kernel/setup_percpu.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_percpu.c
+++ linux-2.6/arch/x86/kernel/setup_percpu.c
@@ -153,7 +153,6 @@ static struct page * __init pcpur_get_pa
 static ssize_t __init setup_pcpu_remap(size_t static_size)
 {
 	static struct vm_struct vm;
-	pg_data_t *last;
 	size_t ptrs_size, dyn_size;
 	unsigned int cpu;
 	ssize_t ret;
@@ -165,19 +164,6 @@ static ssize_t __init setup_pcpu_remap(s
 	if (!cpu_has_pse || !pcpu_need_numa())
 		return -EINVAL;
 
-	last = NULL;
-	for_each_possible_cpu(cpu) {
-		int node = early_cpu_to_node(cpu);
-
-		if (node_online(node) && NODE_DATA(node) &&
-		    last && last != NODE_DATA(node))
-			goto proceed;
-
-		last = NODE_DATA(node);
-	}
-	return -EINVAL;
-
-proceed:
 	/*
 	 * Currently supports only single page.  Supporting multiple
 	 * pages won't be too difficult if it ever becomes necessary.
--
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