linux-kernel - [PATCH] x86: cleanup - eliminate numbers in LDT allocation code

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Message-ID: <20080201171422.GA6730@cvg>
Date:	Fri, 1 Feb 2008 20:14:22 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Andi Kleen <ak@...e.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: cleanup - eliminate numbers in LDT allocation code

This patch eliminates numbers in LDT allocation code
trying to make it clear to understand from where
these numbers are go

Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>

---

I hope nobody shoot me ;)

Index: linux-2.6.git/arch/x86/kernel/ldt.c
===================================================================
--- linux-2.6.git.orig/arch/x86/kernel/ldt.c	2008-02-01 19:30:01.000000000 +0300
+++ linux-2.6.git/arch/x86/kernel/ldt.c	2008-02-01 19:38:32.000000000 +0300
@@ -35,7 +35,8 @@ static int alloc_ldt(mm_context_t *pc, i
 	if (mincount <= pc->size)
 		return 0;
 	oldsize = pc->size;
-	mincount = (mincount + 511) & (~511);
+	mincount = (mincount + (PAGE_SIZE / LDT_ENTRY_SIZE - 1)) &
+			(~(PAGE_SIZE / LDT_ENTRY_SIZE - 1));
 	if (mincount * LDT_ENTRY_SIZE > PAGE_SIZE)
 		newldt = vmalloc(mincount * LDT_ENTRY_SIZE);
 	else
--
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