[$] Flexible-order anonymous folios

Post Syndicated from corbet original https://lwn.net/Articles/932386/

The conversion to folios is intended to,
among other things, make it easy for the kernel to manage chunks of memory
in a number of different sizes. So far, though, that flexibility is not
being used in the kernel’s handling of anonymous pages. At the 2023 Linux Storage, Filesystem,
Memory-Management and BPF Summit
, Yu Zhao and Yang Shi ran a session in
the memory-management track aimed at charting a path toward support for
anonymous pages in a variety of sizes.