linux-kernel - Re: [PATCH] Drop superfluous casts in nr_free

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Date:	Tue, 4 Aug 2009 11:16:15 +0800
From:	Amerigo Wang <xiyou.wangcong@...il.com>
To:	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
Cc:	Christoph Lameter <cl@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arch@...r.kernel.org,
	Linux Kernel Development <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Drop superfluous casts in nr_free_pages() callers

On Mon, Aug 03, 2009 at 06:11:42PM +0200, Geert Uytterhoeven wrote:
>Commit 96177299416dbccb73b54e6b344260154a445375 ("Drop free_pages()")
>modified nr_free_pages() to return 'unsigned long' instead of 'unsigned int'.
>This made the casts to 'unsigned long' in most callers superfluous, hence
>remove them.
>
>Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>
>---

>diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
>index 61d7e61..a5d5e70 100644
>--- a/arch/um/kernel/mem.c
>+++ b/arch/um/kernel/mem.c
>@@ -77,7 +77,7 @@ void __init mem_init(void)
> 	num_physpages = totalram_pages;
> 	max_pfn = totalram_pages;
> 	printk(KERN_INFO "Memory: %luk available\n",
>-	       (unsigned long) nr_free_pages() << (PAGE_SHIFT-10));
>+	       nr_free_pages() << (PAGE_SHIFT-10));
> 	kmalloc_ok = 1;
> 
> #ifdef CONFIG_HIGHMEM

Since it is fine for other arch, um too.

Acked-by: WANG Cong <xiyou.wangcong@...il.com>
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