Pull request for bitmap branch

[Yury Norov]

Hi Stephen,

Please pull the bitmap branch for the next tree. This branch is based on top
of 5.18-rc2. Tested by 0-day and TCWG. By myself, built for arm64, x86_64,
mips, ss90, sparc, arm and sh; boot-tested for arm64 and x86_64.

Repo: https://github.com/norov/linux.git
Branch: bitmap-for-next

Thanks,
Yury