Kernel

[PATCH -V13 0/3] NUMA balancing: optimize memory placement for memory tiering system (Huang Ying) https://lkml.kernel.org/r/20220221084529.1052339-1-ying.huang@intel.com The AutoNUMA patchset for tiered memory system has revised again. [LSF/MM/BPF TOPIC] page table reclaim (David Hildenbrand) https://lkml.kernel.org/r/7b908208-02f8-6fde-4dfc-13d5e00310a6@redhat.com Some workloads allocates a lot of page tables. As page tables are unmovable and unreclaimable, this can contribute to memory pressure. David is proposing making it reclaimable and suggesting discussion in LSF/MM/BPF summit for the idea. [RFC PATCH 00/47] Address Space Isolation for KVM (Junaid Shahid) https://lkml....

[PATCH v3 0/3] Add hugetlb MADV_DONTNEED support (Mike Kravetz) https://lkml.kernel.org/r/20220215002348.128823-1-mike.kravetz@oracle.com MADV_DONTNEED can be used for hugetlb but currently prohibits it with a simple check. This commit removes the check to enable MADV_DONENEED for hugetlb. mmotm 2022-02-14-17-46 uploaded (Andrew Morton) https://lkml.kernel.org/r/20220215014633.9CD9CC340E9@smtp.kernel.org mmotm has updated. It’s rebased on 5.17-rc4, added 20 new patches, modified 295 patches, and dropped 10 patches. In total, 316 patches in the queue. [PATCH v6 00/71] Introducing the Maple Tree (Liam Howlett) https://lkml....

[PATCH v2 1/2] arm64: avoid flushing icache multiple times on contiguous HugeTLB (Muchun Song) https://lkml.kernel.org/r/20220208054632.66534-1-songmuchun@bytedance.com When a contiguous HugeTLB page is mapped, set_pte_at() is called CONT_PTES / CONT_PMDS times. Because the first flushing covers subsequent flushes, this is unnecessary overhead, so this patchset avoids it. [PATCH v7 00/12] Multigenerational LRU Framework (Yu Zhao) https://lkml.kernel.org/r/20220208081902.3550911-1-yuzhao@google.com Seventh version of the MGLRU patchset, which aims to reduce performance overhead and improve eviction target pages selection of reclamation logic is posted....

[PATCH] selftests: kselftest framework: Provide “finished” helper (Kees Cook) https://lkml.kernel.org/r/20220201013717.2464392-1-keescook@chromium.org Users who want to use ksft_exit() need to figure out the internals of kselftest. This commit adds a helper function for that purpose, namely, ksft_finished(). [LSF/MM/BPF TOPIC] Handling of VMAs (Liam Howlett) https://lkml.kernel.org/r/20220201150521.owa5axfsmpdvc7uo@revolver Liam is pointing out the VMAs are quite complicately managed with their cache, tree, linked list, and even reverse mapping. As it now shows its limit with the lock contention and complexity of the handling code, he wants to propose a simpler new way for their management....

[PATCH 0/7] Allocate module text and data separately (Christophe Leroy) https://lkml.kernel.org/r/cover.1643015752.git.christophe.leroy@csgroup.eu Powerpc book3s/32 can set execute permission in 256 MiB segments granularity instead of page granularity. This patchset therefore allow module data be allocated in vmalloc rea instead of module area. [PATCH 0/4] mm/memcg: Address PREEMPT_RT problems instead of disabling it. (Sebastian Adrzej Siewior) https://lkml.kernel.org/r/20220125164337.2071854-1-bigeasy@linutronix.de This patchset enables MEMCG for PREEMPT_RT instead of disabling it. [LSF/MM/BPF TOPIC] Folios (Matthew Wilcox) https://lkml....