Andrew Morton has merged multiple memory management (MM) pull requests for the upcoming Linux 7.1 kernel. Key improvements include: ~30% reduction in static swap metadata memory usage by removing the static swap_map, improved khugepaged scan logic reducing CPU usage, a 60% performance boost for large folio reclamation on ARM64 via batched MGLRU young-flag checking, fixes to ZRAM, and 33 patches addressing the dying memcg cgroup problem. Additional non-MM changes include a resettable hung task detector counter, hard lock-up detector improvements, and XOR library cleanup for RAID5 parity.
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