linux-kernel - [PATCH] x86: parocessor.h - use PAGE

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Message-ID: <20080313164456.GA7560@cvg>
Date:	Thu, 13 Mar 2008 19:44:56 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: parocessor.h - use PAGE_SIZE instead of numeric value
	v2

This patch replaces numeric constant with an appropriate macro

Also 0x800000000000UL is changed to bit shifting which is complement
to the code comment (thanks hpa for notice)

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

Index: linux-2.6.git/include/asm-x86/processor.h
===================================================================
--- linux-2.6.git.orig/include/asm-x86/processor.h	2008-03-12 23:17:25.000000000 +0300
+++ linux-2.6.git/include/asm-x86/processor.h	2008-03-13 18:35:13.000000000 +0300
@@ -786,7 +786,7 @@ extern unsigned long thread_saved_pc(str
 /*
  * User space process size. 47bits minus one guard page.
  */
-#define TASK_SIZE64	(0x800000000000UL - 4096)
+#define TASK_SIZE64	((1UL << 47) - PAGE_SIZE)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
--
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