INTR_EXCL
if (info->i_flags & INTR_EXCL)
if ((intr_flags & INTR_EXCL) && *list != NULL)
info->i_flags |= (intr_flags & INTR_EXCL);
INTR_EXCL | INTR_CLOCK |
INTR_EXCL | INTR_CLOCK |
INTR_EXCL | INTR_CLOCK |
icflags |= INTR_EXCL;