kernel

[PATCH v15 0/9] Rust support for mm_struct, vm_area_struct, and mmap (Alice Ryhl) https://lore.kernel.org/20250304-vma-v15-0-5c641b31980a@google.com Alice Ryhl posted the fiftennth version of Rust binding for major mm API. [RFC PATCH 0/4] Kernel daemon for detecting and promoting hot pages (Bharata B Rao) https://lore.kernel.org/20250306054532.221138-1-bharata@amd.com Bharata posted an RFC patch set for igniting discussion about one source that provides page access information with an example. The patch uses AMD IBS driver as the source.

[RFC PATCH 0/3] sched/numa: Introduce per cgroup numa balance control (Chen Yu) https://lore.kernel.org/cover.1740483690.git.yu.c.chen@intel.com Chen posted an RFC for cgroup based numa balancing control, following recent approach from Kaiyang Zhao. [LSF/MM/BPF TOPIC] SLUB allocator, mainly the sheaves caching layer (Vlastimil Babka) https://lore.kernel.org/14422cf1-4a63-4115-87cb-92685e7dd91b@suse.cz Vlastimil proposes an LSFMMBPF topic for his SLUB sheaves patch series. [RFC PATCH 0/2] SKSM: Synchronous Kernel Samepage Merging (Mathieu Desnoyers) https://lore.kernel.org/20250228023043.83726-1-mathieu.desnoyers@efficios.com Matthieu proposes a variant of KSM that works in synchronous manner, unlike KSM.

[Hypervisor Live Update] Notes from February 10, 2025 (David Rientjes) https://lore.kernel.org/dc1ee0c3-d3e7-4284-6329-346b8cea68b5@google.com David shares hypervisor live update meeting summary. [GIT PULL] hotfixes for 6.14-rc4 (Andrew Morton) https://lore.kernel.org/20250219175311.7a5b47084de5ad0258526be2@linux-foundation.org Andrew posted mm hotfixes for 6.14-rc4 to Linus Torvalds. Rust kernel policy (Miguel Ojeda) https://lore.kernel.org/CANiq72m-R0tOakf=j7BZ78jDHdy=9-fvZbAT8j91Je2Bxy0sFg@mail.gmail.com Miguel posted a mail about his blog post for the policy around Rust for Linux kernel. Long discussion is following. [PATCH 0/2] Add a command line option that enables control of how many threads per NUMA node should be used to allocate huge pages.

[PATCH v10 00/12] AMD broadcast TLB invalidation (Rik van Riel) https://lore.kernel.org/20250211210823.242681-1-riel@surriel.com Rik posted the tenth versin of the TLB invalication broadcasting patch series for AMD. [PATCH v14 0/8] Rust support for mm_struct, vm_area_struct, and mmap (Alice Ryhl) https://lore.kernel.org/20250213-vma-v14-0-b29c47ab21f5@google.com Alice posted 14th version of the patch series for adding Rust support to mm_struct, vm_rea_struct and mmap. [LSF/MM/BPF TOPIC] Rust in FS, Storage, MM (Andreas Mindborg) https://lore.kernel.org/87ldu9uiyo.fsf@kernel.org Andreas proposes an LSFMMBPF topic for discussing status and experience of Rust adoption for the subsystems.

[LSF/MM/BPF TOPIC] Integrate Swap Cache, Swap Maps with Swap Allocator (Kairui Song) https://lore.kernel.org/CAMgjq7BvQ0ZXvyLGp2YP96+i+6COCBBJCYmjXHGBnfisCAb8VA@mail.gmail.com Kairui proposes yet another LSFMMBPF topic for redesigning and integrating multiple swap data into the swap allocator. [PATCH v4 00/14] kexec: introduce Kexec HandOver (KHO) (Mike Rapoport) https://lore.kernel.org/20250206132754.2596694-1-rppt@kernel.org Mike posted the fourth version of the kexec handover patch series. Linux 6.14-rc2 (Linus Torvalds) https://lore.kernel.org/CAHk-=wiGR6aB2oE7VsDkpnSbHaUnxVqtMvcEB0JzdvS-YmT_Lg@mail.gmail.com Linus Torvalds released the second candidate of Linux 6.14. It is a small rc2 following the small rc1 pattern.

[PATCH] mm: Optimize TLB flushes during page reclaim (Vinay Banakar) https://lore.kernel.org/CALf+9Yc3WjbG89uRWiDC_qYshJ5z_9WCrbEJe42Vbv+gJjs26g@mail.gmail.com Vinay optimizes shrink_folio_list() to do TLB flush in batch instead of per page being reclaimed. [LSF/MM/BPF TOPIC] Overhauling hot page detection and promotion based on PTE A bit scanning (Raghavendra K T) https://lore.kernel.org/20250123105721.424117-1-raghavendra.kt@amd.com Raghavendra proposes an LSFMMBPF topic for discussions around multiple ways to find hot pages, and possible future composition of those. [LSF/MM/BPF TOPIC] Enhancements to Page Migration with Multi-threading and Batch Offloading to DMA (Shivank Garg) https://lore.

[LSF/MM/BPF TOPIC] Predictive readahead of dentries (Shyam Prasad N) https://lore.kernel.org/CANT5p=rxLH-D9qSoOWgjYeD87uahmZJMwXp8uNKW66mbv8hmDg@mail.gmail.com Shyam proposes an LSFMM topic for dentries readahead, like that of filesystems. [PATCH v9 00/17] reimplement per-vma lock as a refcount (Suren Baghdasaryan) https://lore.kernel.org/20250111042604.3230628-1-surenb@google.com Suren continues revisioning of his per-vma lock optimization, and posted the ninth version of it, with changed title. [Feedback Needed] Hypervisor live update biweekly meeting time (David Rientjes) https://lore.kernel.org/2908e4ab-abc4-ddd0-b191-fe820856cfb4@google.com David announces start of a bi-weekly syncup for hypervisor live update, which was a topic of last year’s MM alignment session, and asking feedback about the time proposal.

[PATCH] tools/mm: Introduce a tool to handle entries in allocinfo (Hao Ge) https://lore.kernel.org/20250106112103.25401-1-hao.ge@linux.dev Hao posted a patch adding a tool for handling of the kernel’s memory allocation profilier output. [Invitation] Linux MM Alignment Session on Cgroup-based THP Control on Wednesday (David Rientjes) https://lore.kernel.org/5535fc79-c566-93a0-6134-bfdf1cf5171a@google.com David invites people for next Linux MM Alignment session. The topic will be cgroup-based THP control, led by Gutierez Asier, who proposed the idea. Swap Min Odrer (Daniel Gomez) https://lore.

[PATCH v3 00/12] AMD broadcast TLB invalidation (Rik van Riel) https://lore.kernel.org/20241230175550.4046587-1-riel@surriel.com Rik posted the third version of the patch series for AMD TLB invalidastion broadcasting support. [PATCH mm-unstable v4 0/7] mm/mglru: performance optimizations (Yu Zhao) https://lore.kernel.org/20241231043538.4075764-1-yuzhao@google.com Yu posted the fourth version of MGLRU performance optimization, which fixes two more regressions. [RFC PATCH 0/9 v2] cgroup: separate per-subsystem rstat trees (JP Kobryn) https://lore.kernel.org/20250103015020.78547-1-inwardvessel@gmail.com JP posted second version of the RFC patch sereis that reduce per-subsystem stat reading overhead by separating the data structure per subsystem.

As today is the last day of 2024, I checked my open source commits statistics using my simple and buggy scripts. Similar statistics for 2023 is available at another post. Note that the script may have bugs, and numbers don’t tell everything. In short, I made 7th and 2nd biggest changes to Linux kernel memory management subsystem among the 340 people, in terms of lines of changes (2,347) and commits (102).