LKML News v5.19-rc5

[PATCH v3] docs: rename Documentation/vm to Documentation/mm (Mike Rapoport) https://lkml.kernel.org/r/20220627060026.180439-1-rppt@kernel.org As the subject says, this commit renames the Documentation/vm directory to Documentation/mm. [PATCH v6 0/4] KVM: mm: count KVM mmu usage in memory stats (Yosry Ahmed) https://lkml.kernel.org/r/20220628220938.3657876-1-yosryahmed@google.com This patchset allows users account KVM mmu usages with NR_SECONDARY_PAGETABLE memory stat. [RFC PATCH] mm/slub: enable debugging memory wasting of kmalloc (Feng Tang) https://lkml.kernel.org/r/20220630014715.73330-1-feng.tang@intel.com As kmalloc allocates memory in power of 2 granularity, it could waste a lot of memory....

June 28, 2022 · 2 min · 252 words · Me

LKML News v5.19-rc4

[PATCH Part2 v6 00/49] Add AMD Secure Nested Paging (SEV-SNP) (Ashsh Kalra) https://lkml.kernel.org/r/cover.1655761627.git.ashish.kalra@amd.com This is second part patchset of Secure Encrypted Paging (SEV-SNP) work, which focuses on the changes required in a host OS for the feature support. [PATCH v7 00/12] mm/demotion: Memory tiers and demotion (Aneesh Kumar K.V) https://lkml.kernel.org/r/20220622082513.467538-1-aneesh.kumar@linux.ibm.com This patchset improves memory tiers construction to be more explicit and flexible, and memory allocation for demotion to have no change....

June 21, 2022 · 2 min · 267 words · Me

LKML News v5.19-rc3

[PATCH 0/8] Extend DAMOS for Proactive LRU-lists Sorting (SeongJae Park) https://lkml.kernel.org/r/20220613192301.8817-1-sj@kernel.org After the RFC, official patchset for DAMON-based LRU-lists sorting has posted. This immediately merged in the -mm tree. [PATCH v12 00/14] Multi-Gen LRU Framework (Yu Zhao) https://lkml.kernel.org/r/20220614071650.206064-1-yuzhao@google.com A new version of MGLRU has posted. Compared to the previous version, this version fixes a bug and nits, and contains new test results based on v5.19-rc1. Maintainer’s / Kernel Summit 2022 CFP (Theodore Ts’o) https://lkml....

June 14, 2022 · 2 min · 282 words · Me

LKML News v5.19-rc2

[PATCH v3 0/6] introduce mirrored memory support for arm64 (Wupeng Ma) https://lkml.kernel.org/r/20220607093805.1354256-1-mawupeng1@huawei.com This patchset adds memory mirroring support, which relies on UEFI and used to separate memory into two separate channels, to arm64. [PATCH] mm: mempolicy: N:M interleave policy for tiered memory nodes (Johannes Weiner) https://lkml.kernel.org/r/20220607171949.85796-1-hannes@cmpxchg.org Current pages NUMA-interleaving policy is 1:1 mapping, 1 for CPU node, 1 for remote note. As more types of tiered memory systems having CPU-less memory nodes are coming, this patchset introduces an N:M interleave policy, which N pages are allocated from the top-tier node while M pages are allocated from low-tier nodes....

June 7, 2022 · 2 min · 324 words · Me

LKML News v5.19-rc1

[PATCH] arm64: enable THP_SWAP for arm64 (Barry Song) https://lkml.kernel.org/r/20220524071403.128644-1-21cnbao@gmail.com This patch enables THP_SWAP, which can help swap performance on systems having fast swap storages, for arm64. [CFP LPC 2022] Kernel Memory Management Microconference (Vlastimil Babka) https://lkml.kernel.org/r/d24e9ac9-0903-3c15-c446-2962f44a360f@suse.cz This year, LPC will have kernel memory management microconference. It will supplement the LSF/MM and lead by Matthew Wilcox and Vlastimil Babka. [PATCH v2] arm64: enable THP_SWAP for arm64 (Barry Song) https://lkml.kernel.org/r/20220527100644.293717-1-21cnbao@gmail.com Second version of the THP_SWAP enablement for arm64 has posted....

May 24, 2022 · 3 min · 557 words · Me