[PATCH] x86: Use v8086_mode helper, trivial unification

Harvey Harrison
2008-01-17T23:05:33Z

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: Harvey Harrison <harvey.harrison@gmail.com>
---
arch/x86/mm/fault_32.c | 4 +++-
arch/x86/mm/fault_64.c | 11 +++++++++++
2 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 77915ac..6d8a0bb 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -547,14 +547,16 @@ good_area:
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;

diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 84531d8..8393275 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -551,6 +551,17 @@ good_area:
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;

--
1.5.4.rc2.1164.g6451