Virtual swap layer proposed to decouple Linux PTEs from backing
Nhat Pham's v5 series lets zswap and zero pages claim swap entries without pre-allocating physical slots, and retunes memcg swap charging to match.
By kexec#zswap
Linux virtual swap decouples zswap pages from disk slots
Nhat Pham's v4 series adds a persistent virtual swap device so compressed and zero-filled pages no longer reserve physical swap capacity.
By oops