mask_off_old_flags  552 mm/mprotect.c  		unsigned long mask_off_old_flags;
mask_off_old_flags  567 mm/mprotect.c  		mask_off_old_flags = VM_READ | VM_WRITE | VM_EXEC |
mask_off_old_flags  572 mm/mprotect.c  		newflags |= (vma->vm_flags & ~mask_off_old_flags);