Kernel THP split path split into anon and file helpers
Kairui Song’s cleanup series separates mixed folio-split logic so swap-cache restrictions can be lifted later.
By oops#swap
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 kexecLinux mm series keeps anonymous THPs intact across swap
Usama Arif's 29-patch work adds PMD-level swap entries so huge pages need not split on reclaim, with roughly 4x throughput on a swap-heavy benchmark.
By oopsLinux 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 oopsLinux swap faults stop spinning forever on bad entries
A Meta engineer’s patches rate-limit the log spam and turn permanent swap PTE corruption into SIGBUS instead of an infinite retry.
By oops