HK_FLAG_DOMAIN
if (housekeeping.flags & HK_FLAG_DOMAIN)
WRITE_ONCE(housekeeping.flags, housekeeping.flags | HK_FLAG_DOMAIN);
iter_flags = housekeeping.flags & (HK_FLAG_KERNEL_NOISE | HK_FLAG_DOMAIN);
iter_flags = flags & (HK_FLAG_KERNEL_NOISE | HK_FLAG_DOMAIN);
flags |= HK_FLAG_DOMAIN | HK_FLAG_DOMAIN_BOOT;
flags |= HK_FLAG_DOMAIN | HK_FLAG_DOMAIN_BOOT;