linux-kernel - [PATCH] um: Clean up vm-flags.h

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Date:	Thu, 16 Jun 2011 21:01:07 +0200
From:	Richard Weinberger <richard@....at>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org,
	user-mode-linux-devel@...ts.sourceforge.net,
	Richard Weinberger <richard@....at>, randy.dunlap@...cle.com,
	mhocko@...e.cz, torvalds@...ux-foundation.org
Subject: [PATCH] um: Clean up vm-flags.h

There is no need to define VM_{STACK,DATA}_DEFAULT_FLAGS as
variable.
It's also useless to test for TIF_IA32 as 64bit UML has no
IA32 emulation.

Signed-off-by: Richard Weinberger <richard@....at>
CC: randy.dunlap@...cle.com
CC: mhocko@...e.cz
CC: torvalds@...ux-foundation.org
---
 arch/um/sys-x86_64/Makefile                 |    2 +-
 arch/um/sys-x86_64/mem.c                    |   16 ----------------
 arch/um/sys-x86_64/shared/sysdep/vm-flags.h |   26 ++++----------------------
 3 files changed, 5 insertions(+), 39 deletions(-)
 delete mode 100644 arch/um/sys-x86_64/mem.c

diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index c1ea9eb..63fe0d2 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -4,7 +4,7 @@
 # Licensed under the GPL
 #
 
-obj-y = bug.o bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \
+obj-y = bug.o bugs.o delay.o fault.o ldt.o ptrace.o ptrace_user.o \
 	setjmp.o signal.o stub.o stub_segv.o syscalls.o syscall_table.o \
 	sysrq.o ksyms.o tls.o
 
diff --git a/arch/um/sys-x86_64/mem.c b/arch/um/sys-x86_64/mem.c
deleted file mode 100644
index 3f8df8a..0000000
--- a/arch/um/sys-x86_64/mem.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright 2003 PathScale, Inc.
- *
- * Licensed under the GPL
- */
-
-#include "linux/mm.h"
-#include "asm/page.h"
-#include "asm/mman.h"
-
-unsigned long vm_stack_flags = __VM_STACK_FLAGS;
-unsigned long vm_stack_flags32 = __VM_STACK_FLAGS;
-unsigned long vm_data_default_flags = __VM_DATA_DEFAULT_FLAGS;
-unsigned long vm_data_default_flags32 = __VM_DATA_DEFAULT_FLAGS;
-unsigned long vm_force_exec32 = PROT_EXEC;
-
diff --git a/arch/um/sys-x86_64/shared/sysdep/vm-flags.h b/arch/um/sys-x86_64/shared/sysdep/vm-flags.h
index 3213edf..3978e55 100644
--- a/arch/um/sys-x86_64/shared/sysdep/vm-flags.h
+++ b/arch/um/sys-x86_64/shared/sysdep/vm-flags.h
@@ -7,27 +7,9 @@
 #ifndef __VM_FLAGS_X86_64_H
 #define __VM_FLAGS_X86_64_H
 
-#define __VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-#define __VM_STACK_FLAGS 	(VM_GROWSDOWN | VM_READ | VM_WRITE | \
-				 VM_EXEC | VM_MAYREAD | VM_MAYWRITE | \
-				 VM_MAYEXEC)
-
-extern unsigned long vm_stack_flags, vm_stack_flags32;
-extern unsigned long vm_data_default_flags, vm_data_default_flags32;
-extern unsigned long vm_force_exec32;
-
-#ifdef TIF_IA32
-#define VM_DATA_DEFAULT_FLAGS \
-	(test_thread_flag(TIF_IA32) ? vm_data_default_flags32 : \
-	  vm_data_default_flags)
-
-#define VM_STACK_DEFAULT_FLAGS \
-	(test_thread_flag(TIF_IA32) ? vm_stack_flags32 : vm_stack_flags)
-#endif
-
-#define VM_DATA_DEFAULT_FLAGS vm_data_default_flags
-
-#define VM_STACK_DEFAULT_FLAGS vm_stack_flags
+#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
+	VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_STACK_DEFAULT_FLAGS (VM_GROWSDOWN | VM_READ | VM_WRITE | \
+	VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
 #endif
-- 
1.7.5.4

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