Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6.git] / arch / x86 / kernel / vm86_32.c
index b8035a0..9c4e625 100644 (file)
@@ -287,10 +287,9 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
        info->regs.pt.ds = 0;
        info->regs.pt.es = 0;
        info->regs.pt.fs = 0;
-
-/* we are clearing gs later just before "jmp resume_userspace",
- * because it is not saved/restored.
- */
+#ifndef CONFIG_X86_32_LAZY_GS
+       info->regs.pt.gs = 0;
+#endif
 
 /*
  * The flags register is also special: we cannot trust that the user
@@ -343,7 +342,9 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
        __asm__ __volatile__(
                "movl %0,%%esp\n\t"
                "movl %1,%%ebp\n\t"
+#ifdef CONFIG_X86_32_LAZY_GS
                "mov  %2, %%gs\n\t"
+#endif
                "jmp resume_userspace"
                : /* no outputs */
                :"r" (&info->regs), "r" (task_thread_info(tsk)), "r" (0));