[$] Reconsidering the multi-generational LRU

The multi-generational LRU (MGLRU) is analternative memory-management algorithm that was merged for the 6.1 kernelin late 2022. It brought a promise of much-improved performance andsimplified code. Since then, though, progress on MGLRU has stalled, and itstill is not enabled on many systems. As the 2026 Linux Storage,Filesystem, Memory-Management and BPF Summit (LSFMM+BPF) approaches,several memory-management developers have indicated a desire to talk aboutthe future of MGLRU. While some developers are looking for ways to improvethe subsystem, another has called for it to be removed entirely.