Hi,
Thanks for your patch.
FYI: kernel test robot notices the stable kernel rule is not satisfied.
Rule: 'Cc: stable@vger.kernel.org' or 'commit <sha1> upstream.' Subject: [PATCH 1/3] mm/page_alloc: use ac->high_zoneidx for classzone_idx Link: https://lore.kernel.org/stable/1663347949-20389-2-git-send-email-wang.yong12...
The check is based on https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html