Kernel

[Invitation] Linux MM Alignment Session on Wednesday (David Rientjes) https://lkml.kernel.org/r/CAE-26VAFJtSu5xEbzNUgPVn3W13-B1bGvvU8-+i-hkS4GtupCw@mail.gmail.com David is hosting biweekly meetings for Linux memory management developments called Linux MM Alignment, and he is publicly inviting people to the meetings. The next instance will be held on 10:00 PST, 2023-03-08, at https://meet.google.com/csb-wcds-xya THP backed thread stacks (Mike Kravetz) https://lkml.kernel.org/r/20230306235730.GA31451@monkey Mike found THP-always’s memory bloat issue due to THP usage for threads' stacks. Mike feels it might make no sense to use THP for stacks even if the THP policy is ‘always’, and starting discussions on improvment of the situation....

[GIT PULL] MM updates for 6.3-rc1 (Andrew Morton) https://lkml.kernel.org/r/20230220135225.91b0f28344c01d5306c31230@linux-foundation.org The mm updates pull request for v6.3-rc1 has posted by Andrew. [GIT PULL] Compute Express Link (CXL) for 6.3 (Dan Williams) https://lkml.kernel.org/r/63f5a4e2277b1_c94229453@dwillia2-mobl3.amr.corp.intel.com.notmuch A pull request for makincg CXL handling including CXL memory layout parsing/updating and events/errors reporting has posted for v6.3. Without this patchset, currently the works are dependents on platform-firmware. [RFC v2 0/5] tmpfs: add the option to disable swap (Luis Chamberlain) https://lkml....

[PATCH] mm/userfaultfd: Support operation on multiple VMAs (Muhammad Usama Anjum) https://lkml.kernel.org/r/20230213104323.1792839-1-usama.anjum@collabora.com mwriteprotect_range() handle only single VMA, but there are usecases which need to handle multiple VMAs in a memory range of interest. This commit fixes the case. [v2 PATCH 0/5] Introduce mempool pages bulk allocator and use it in dm-crypt (Yang Shi) https://lkml.kernel.org/r/20230214190221.1156876-1-shy828301@gmail.com Noticeable overhead on disc encryption due to page allocations have found. The overhead was because the allocation logic in dm-crypt allocates one page in each pass of a loop....

[LSF/MM/BPF TOPIC] sframe: An orc like stack unwinder for the kernel to get a user space stacktrace (Steven Rostedt) https://lkml.kernel.org/r/20230206103828.6efcb28f@rorschach.local.home Steven Rostedt proposes yet another LSF/MM/BPF topic for using sframe section, which is introduced by binutils, for more efficient user space stack tracing. [PATCH v4 00/14] Introduce Copy-On-Write to Page Table (Chih-En Lin) https://lkml.kernel.org/r/20230207035139.272707-1-shiyn.lin@gmail.com Fourth version of the patchset making copy-on-write be used for page table, while it is currently only used for the mapped memory....

[LSF/MM/BPF TOPIC] CXL Fabric Manager (FM) architecture (Viacheslav A.Dubeyko) https://lkml.kernel.org/r/7F001EAF-C512-436A-A9DD-E08730C91214@bytedance.com A topic suggestion for LSF/MM/BPF. It suggests to discuss about Fabric Manager (FM) architecture, which requires configuration tool, daemon, and QEMU emulation of CXL hardware features. [PATCH V2 0/3] sched/numa: Enhance vma scanning (Ragghavendra K T) https://lkml.kernel.org/r/cover.1675159422.git.raghavendra.kt@amd.com A patchset for improving access scanning for NUMA balancing. This uses per-thread VMA scanning idea from Mel. LSFMMBPF proposal [MM]: Lazy RCU memory reclaim (Joel Fernandes) https://lkml....