linux-kernel - 2.6.18-rc3-mm2 early

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Message-ID: <Pine.LNX.4.64.0608061811030.19637@blonde.wat.veritas.com>
Date:	Sun, 6 Aug 2006 18:22:04 +0100 (BST)
From:	Hugh Dickins <hugh@...itas.com>
To:	Andrew Morton <akpm@...l.org>
cc:	Rusty Russell <rusty@...tcorp.com.au>, Andi Kleen <ak@...e.de>,
	linux-kernel@...r.kernel.org
Subject: 2.6.18-rc3-mm2 early_param mem= fix

I was impressed by how fast 2.6.18-rc3-mm2 is under memory pressure,
until I noticed that my "mem=512M" boot option was doing nothing.  The
two fixes below got it working, but I wonder how many other early_param
"option=" args are wrong (e.g. "memmap=" in the same file): x86_64
shows many such, i386 shows only one, I've not followed it up further.

Hugh

--- 2.6.18-rc3-mm2/arch/x86_64/kernel/e820.c	2006-08-06 12:25:35.000000000 +0100
+++ linux/arch/x86_64/kernel/e820.c	2006-08-06 18:05:33.000000000 +0100
@@ -646,11 +646,11 @@ static int __init parse_memopt(char *p)
 {
 	if (!p)
 		return -EINVAL;
-	end_user_pfn = memparse(p, NULL);
+	end_user_pfn = memparse(p, &p);
 	end_user_pfn >>= PAGE_SHIFT;	
 	return 0;
 } 
-early_param("mem=", parse_memopt);
+early_param("mem", parse_memopt);
 
 static int userdef __initdata;
 
-
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