From: gorcunov@gmail.com <gorcunov@gmail.com>
Date: Fri, 28 Mar 2008 14:56:57 +0000 (+0300)
Subject: x86: cleanup - rename VM_MASK to X86_VM_MASK
X-Git-Tag: v2.6.26-rc1~1154^2~62
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=6b6891f9c545ccd45d6d8ddfd33ce27c22c271a7;p=linux-2.6-omap-h63xx.git

x86: cleanup - rename VM_MASK to X86_VM_MASK

This patch renames VM_MASK to X86_VM_MASK (which
in turn defined as alias to X86_EFLAGS_VM) to better
distinguish from virtual memory flags. We can't just
use X86_EFLAGS_VM instead because it is also used
for conditional compilation

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/traps_32.c b/arch/x86/kernel/traps_32.c
index 3284502a1bf..bb9107c56ff 100644
--- a/arch/x86/kernel/traps_32.c
+++ b/arch/x86/kernel/traps_32.c
@@ -498,7 +498,7 @@ do_trap(int trapnr, int signr, char *str, int vm86, struct pt_regs *regs,
 {
 	struct task_struct *tsk = current;
 
-	if (regs->flags & VM_MASK) {
+	if (regs->flags & X86_VM_MASK) {
 		if (vm86)
 			goto vm86_trap;
 		goto trap_signal;
@@ -643,7 +643,7 @@ void __kprobes do_general_protection(struct pt_regs *regs, long error_code)
 	}
 	put_cpu();
 
-	if (regs->flags & VM_MASK)
+	if (regs->flags & X86_VM_MASK)
 		goto gp_in_vm86;
 
 	if (!user_mode(regs))
@@ -922,7 +922,7 @@ void __kprobes do_debug(struct pt_regs *regs, long error_code)
 			goto clear_dr7;
 	}
 
-	if (regs->flags & VM_MASK)
+	if (regs->flags & X86_VM_MASK)
 		goto debug_vm86;
 
 	/* Save debug status register where ptrace can see it */
@@ -1094,7 +1094,7 @@ void do_simd_coprocessor_error(struct pt_regs *regs, long error_code)
 	 * Handle strange cache flush from user space exception
 	 * in all other cases.  This is undocumented behaviour.
 	 */
-	if (regs->flags & VM_MASK) {
+	if (regs->flags & X86_VM_MASK) {
 		handle_vm86_fault((struct kernel_vm86_regs *)regs, error_code);
 		return;
 	}
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 51040698c22..c866c00f4a8 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -299,7 +299,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 	VEFLAGS = info->regs.pt.flags;
 	info->regs.pt.flags &= SAFE_MASK;
 	info->regs.pt.flags |= info->regs32->flags & ~SAFE_MASK;
-	info->regs.pt.flags |= VM_MASK;
+	info->regs.pt.flags |= X86_VM_MASK;
 
 	switch (info->cpu_type) {
 	case CPU_286:
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 81fcbeec389..fd7e1798c75 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -639,7 +639,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
 #ifdef CONFIG_X86_32
 	/* It's safe to allow irq's after cr2 has been saved and the vmalloc
 	   fault has been handled. */
-	if (regs->flags & (X86_EFLAGS_IF|VM_MASK))
+	if (regs->flags & (X86_EFLAGS_IF | X86_VM_MASK))
 		local_irq_enable();
 
 	/*
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index e779f2b26b3..24ec061566c 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -170,7 +170,7 @@ static inline int user_mode(struct pt_regs *regs)
 static inline int user_mode_vm(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
-	return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & VM_MASK)) >=
+	return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
 		USER_RPL;
 #else
 	return user_mode(regs);
@@ -180,7 +180,7 @@ static inline int user_mode_vm(struct pt_regs *regs)
 static inline int v8086_mode(struct pt_regs *regs)
 {
 #ifdef CONFIG_X86_32
-	return (regs->flags & VM_MASK);
+	return (regs->flags & X86_VM_MASK);
 #else
 	return 0;	/* No V86 mode support in long mode */
 #endif
diff --git a/include/asm-x86/vm86.h b/include/asm-x86/vm86.h
index a2be241ed03..f5f3dc479c3 100644
--- a/include/asm-x86/vm86.h
+++ b/include/asm-x86/vm86.h
@@ -17,9 +17,9 @@
 #define IOPL_MASK	0x00003000
 #define NT_MASK		0x00004000
 #ifdef CONFIG_VM86
-#define VM_MASK		0x00020000
+#define X86_VM_MASK	X86_EFLAGS_VM
 #else
-#define VM_MASK		0 /* ignored */
+#define X86_VM_MASK	0 /* No VM86 support */
 #endif
 #define AC_MASK		0x00040000
 #define VIF_MASK	0x00080000	/* virtual interrupt flag */