linux-kernel - [PATCH 12/21] [PATCH] unify TASK

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Message-Id: <11979320252102-git-send-email-gcosta@redhat.com>
Date:	Mon, 17 Dec 2007 20:52:35 -0200
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, tglx@...utronix.de,
	mingo@...e.hu, ehabkost@...hat.com, jeremy@...p.org,
	avi@...ranet.com, anthony@...emonkey.ws,
	virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au,
	ak@...e.de, chrisw@...s-sol.org, rostedt@...dmis.org,
	hpa@...or.com, zach@...are.com, roland@...hat.com,
	Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 12/21] [PATCH] unify TASK_ALIGN definitions

This patch moves the TASK_ALIGN constraints to common header.
The base of it is the same for x86_64 and i386. The only difference
is the presence of vSMP in x86_64. As it's not a worry in i386, we can
safely use the same code for both.

Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
 include/asm-x86/processor.h    |    8 ++++++++
 include/asm-x86/processor_32.h |    1 -
 include/asm-x86/processor_64.h |    8 --------
 3 files changed, 8 insertions(+), 9 deletions(-)

Index: linux-2.6-x86/include/asm-x86/processor.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/processor.h
+++ linux-2.6-x86/include/asm-x86/processor.h
@@ -18,6 +18,14 @@ static inline void *current_text_addr(vo
 	return pc;
 }
 
+#ifdef CONFIG_X86_VSMP
+#define ARCH_MIN_TASKALIGN	(1 << INTERNODE_CACHE_SHIFT)
+#define ARCH_MIN_MMSTRUCT_ALIGN	(1 << INTERNODE_CACHE_SHIFT)
+#else
+#define ARCH_MIN_TASKALIGN	16
+#define ARCH_MIN_MMSTRUCT_ALIGN	0
+#endif
+
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 					 unsigned int *ecx, unsigned int *edx)
 {
Index: linux-2.6-x86/include/asm-x86/processor_32.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/processor_32.h
+++ linux-2.6-x86/include/asm-x86/processor_32.h
@@ -174,7 +174,6 @@ typedef struct {
 	unsigned long seg;
 } mm_segment_t;
 
-#define ARCH_MIN_TASKALIGN	16
 
 #define INIT_THREAD  {							\
 	.sp0 = sizeof(init_stack) + (long)&init_stack,			\
Index: linux-2.6-x86/include/asm-x86/processor_64.h
===================================================================
--- linux-2.6-x86.orig/include/asm-x86/processor_64.h
+++ linux-2.6-x86/include/asm-x86/processor_64.h
@@ -117,14 +117,6 @@ struct orig_ist {
 };
 DECLARE_PER_CPU(struct orig_ist, orig_ist);
 
-#ifdef CONFIG_X86_VSMP
-#define ARCH_MIN_TASKALIGN	(1 << INTERNODE_CACHE_SHIFT)
-#define ARCH_MIN_MMSTRUCT_ALIGN	(1 << INTERNODE_CACHE_SHIFT)
-#else
-#define ARCH_MIN_TASKALIGN	16
-#define ARCH_MIN_MMSTRUCT_ALIGN	0
-#endif
-
 #define INIT_THREAD  { \
 	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
 }
--
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