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] nommu: Fix split_vma() map_count error Link: https://lore.kernel.org/stable/20230109205809.956325-1-Liam.Howlett%40oracle...
The check is based on https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html