Commit d729ab35 authored by Harvey Harrison's avatar Harvey Harrison Committed by Ingo Molnar
Browse files

x86: use v8086_mode helper, trivial unification



Use v8086_mode inline in fault_32.c, no functional change
also ifdef the section for 32-bit only and add to fault_64.c
Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 5f5cd8fd
......@@ -475,14 +475,16 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
else
tsk->min_flt++;
#ifdef CONFIG_X86_32
/*
* Did it hit the DOS screen memory VA from vm86 mode?
*/
if (regs->flags & VM_MASK) {
if (v8086_mode(regs)) {
unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
if (bit < 32)
tsk->thread.screen_bitmap |= 1 << bit;
}
#endif
up_read(&mm->mmap_sem);
return;
......
......@@ -514,6 +514,17 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
tsk->maj_flt++;
else
tsk->min_flt++;
#ifdef CONFIG_X86_32
/*
* Did it hit the DOS screen memory VA from vm86 mode?
*/
if (v8086_mode(regs)) {
unsigned long bit = (address - 0xA0000) >> PAGE_SHIFT;
if (bit < 32)
tsk->thread.screen_bitmap |= 1 << bit;
}
#endif
up_read(&mm->mmap_sem);
return;
......
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