linux-kernel - [PATCH 2/3] x86/mm: Simplify for-loop in free_init

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Date:	Sat, 14 Jul 2012 16:41:06 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	mingo@...nel.org
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	Pekka Enberg <penberg@...nel.org>, Tejun Heo <tj@...nel.org>,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 2/3] x86/mm: Simplify for-loop in free_init_pages()

As a cleanup, move initial "addr" assignment to the for-loop construct
in free_init_pages().

Cc: Tejun Heo <tj@...nel.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Signed-off-by: Pekka Enberg <penberg@...nel.org>
---
 arch/x86/mm/init.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 9eb53c2..e270f94 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -349,8 +349,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	if (begin >= end)
 		return;
 
-	addr = begin;
-
 	/*
 	 * If debugging page accesses then do not free this memory but
 	 * mark them not present - any buggy init-section access will
@@ -371,7 +369,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 
 	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
 
-	for (; addr < end; addr += PAGE_SIZE) {
+	for (addr = begin; addr < end; addr += PAGE_SIZE) {
 		ClearPageReserved(virt_to_page(addr));
 		init_page_count(virt_to_page(addr));
 		memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
-- 
1.7.7.6

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