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 3284502..bb9107c 100644 (file)
--- 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 5104069..c866c00 100644 (file)
--- 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 81fcbee..fd7e179 100644 (file)
--- 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 e779f2b..24ec061 100644 (file)
--- 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 a2be241..f5f3dc4 100644 (file)
--- 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 */