int prefetch = 0;
unsigned char *max_instr;
-#ifdef CONFIG_X86_32
- if (!(__supported_pte_mask & _PAGE_NX))
- return 0;
-#endif
-
- /* If it was a exec fault on NX page, ignore */
+ /*
+ * If it was a exec (instruction fetch) fault on NX page, then
+ * do not ignore the fault:
+ */
if (error_code & PF_INSTR)
return 0;
#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();
/*
if (address == start)
start = address + PGDIR_SIZE;
}
- /* Check that there is no need to do the same for the modules area. */
- BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
- BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
- (__START_KERNEL & PGDIR_MASK)));
#endif
}