LKML News v6.5-rc3

[PATCH v4 0/6] Add support for memmap on memory feature on ppc64 (Aneesh Kumar K.V) https://lkml.kernel.org/r/20230718024409.95742-1-aneesh.kumar@linux.ibm.com The fourth version of the patchset for support of memmap on memory on ppc64 has posted. [GIT PULL] hotfixes for 6.5-rc2 (Andrew Morton) https://lkml.kernel.org/r/20230718123131.5ec065527c2127a568e5754c@linux-foundation.org Andrew sent mm subsystem hotfixes for 6.5 rc2 to Linus. [PATCH v2 0/5] Invalidate secondary IOMMU TLB on permission upgrade (Alistair Popple) https://lkml.kernel.org/r/cover.de78568883814904b78add6317c263bf5bc20234.1689768831.git-series.apopple@nvidia.com This patch moves secondary TLB invcalidation mmu notifier callbacks to architecture specific TLB flushing functions....

July 18, 2023 · 2 min · 272 words · Me

LKML News v6.5-rc2

[Invitation] Linux MM Alignment Session on mshare on Wednesday (David Rientjes) https://lkml.kernel.org/r/CAE-26VAZZ+buEX0wbqHTz0k1hshYzYP3KzMmXT6jc6=NucPa0Q@mail.gmail.com David from Google is hosting yet another Linux MM Alignment session on Wednesday. The topic of this week is the process page table sharing, which could be a clear efficiency win for situations where huge number of processes sharing same pages. [PATCH v3 0/7] Add support for memmap on memory feature on ppc64 (Aneesh Kumar K.V) https://lkml.kernel.org/r/20230711044834.72809-1-aneesh.kumar@linux.ibm.com This makes the memmap on memory feature more useful for ppc64-like architectures having alignment rules that different with 64K page size....

July 11, 2023 · 2 min · 379 words · Me

I will have a talk at the Open Source Summit Europe 2023

DAMON talk for OSSummit EU 2023 has accepted and scheduled. The talk will focus on its user-space tool, damo. It’s mainly for helping more audiences to digest the content easier, and also for accelerating the development of damo. By the time, hopefully the version of damo would reach to, or exceed 2.0.0, and newer interface and features will be introduced together. The title of the talk is “Data Access Monitoring Operator (DAMO): User-Space Tool/Python Library for Access-Aware Profiling and Optimization of Your Linux Systems”....

June 30, 2023 · 1 min · 85 words · Me

LKML News v6.5-rc1

[GIT PULL] MM updates for 6.5-rc1 (Andrew Morton) https://lkml.kernel.org/r/20230626085035.e66992e96b4c6d37dad54bd9@linux-foundation.org Andrew Morton sent the memory management subsystem pull request for v6.5-rc1. Among the change, cachestata() syscall and Mel Gorman’s compaction optimization looks interesting to me. [GIT PULL] slab updates for 6.5 (Vlastimil Babka) https://lkml.kernel.org/r/1c39c9b0-ec37-f910-2b09-cedf7acf6e91@suse.cz Vlastimil sent the slab pull request for v6.5 to Linus Torvalds. This contains the SLAB config deprecation renaming (s/CONFIG_SLAB/CONFIG_SLAB_DEPRECATED/). [PATCH v1 0/5] mm/memory_hotplug: make offline_and_remove_memory() timeout instead of failing on fatal signals (David Hildenbrand) https://lkml....

June 27, 2023 · 3 min · 504 words · Me

LKML News v6.4

[PATCH] mm/memory_hotplug.c: don’t fail hot unplug quite so eagerly (John Hubbard) https://lkml.kernel.org/r/20230620011719.155379-1-jhubbard@nvidia.com Some device drivers add and remove memory to the system via memory hot [un]plog. Nevertheless, the ungplugging could fail easily, especially for the pending signal on the process. This patch simply remove the signal check error. [PATCH v2] mm/min_free_kbytes: modify min_free_kbytes calculation rules (liuq) https://lkml.kernel.org/r/20230621073912.21747-1-liuq131@chinatelecom.cn This patch adjusts min_free_kbytes calculation so that ZONE_NORMAL is unnecessarily be too small when ZONE_MOVABLE exists....

June 20, 2023 · 2 min · 261 words · Me