Linux

mmotm 2021-10-10-18-19 uploaded (Andrew Morton) https://lkml.kernel.org/r/20211011012001.mSbkDke0y%akpm@linux-foundation.org Update of mmotm. 33 new patches added and 7 old patches dropped. 285 patches in total. [PATCH v2 0/2] Introduce simple pidfd to task helper (Christian Brauner) https://lkml.kernel.org/r/20211011133245.1703103-1-brauner@kernel.org This patchset adds a simple helper to make code clean without duplications. [PATCH v0.7 0/5] sched,mm,x86/uaccess: implement User Managed Concurrency Groups (Peter Oskolkov) https://lkml.kernel.org/r/20211012232522.714898-1-posk@google.com This patchset implements the kernel parts for user-space m:n threading. If this is finalized and merged, user-space applications will be able to do the scheduling of their threads on their own....

[PATCH 0/2] Introduce simple pidfd to task helper (Christian Brauner) https://lkml.kernel.org/r/20211004125050.1153693-1-christian.brauner@ubuntu.com This patchset adds a pidfd handling wrapper for removing duplications. [PATCH 00/62] Separate struct slab from struct page (Matthew Wilcox) https://lkml.kernel.org/r/20211004134650.4031813-1-willy@infradead.org This huge patchset separates struct slab from struct page to make struct page simple and therefore easier to handle. [PATCH v3 00/66] Introducing the Maple Tree (Liam Howlett) https://lkml.kernel.org/r/20211005012959.1110504-1-Liam.Howlett@oracle.com This patchset introduces Maple tree, which is intended to replace the rb tree for vmas, to improve the scalability....

[RFC PATCH 0/8] mm/madvise: support process_madvise(MADV_DONTNEED) (Nadav Amit) https://lkml.kernel.org/r/20210926161259.238054-1-namit@vmware.com This patchset makes process_madvise() to support MADV_DONTNEED hint. mmotm 2021-09-28-19-05 uploaded (Andrew Morton) https://lkml.kernel.org/r/20210929020604.DyNimbxao%akpm@linux-foundation.org The mm-of-the-moment snapshot has been updated. 13 drop, 45 add, 37 modified. 184 patches in the broken/ in total. [PATCH 1/2] memcg: flush stats only if updated (Shakeel Butt) https://lkml.kernel.org/r/20210930044711.2892660-1-shakeelb@google.com This patchset makes memcg stats updated only when needed, as it is currently flushed on every refault and reclaim iteration....

[RFC PATCH] Introducing lockless cache built on top of slab allocator (Hyeonggon Yoo) https://lkml.kernel.org/r/20210919164239.49905-1-42.hyeyoo@gmail.com The block layer now has a lockless cache, which increased its IOPS. This RFC generalizes it so that it can be used in some other area, such as NAPI. [PATCH v5 0/3] virtio-mem: disallow mapping virtio-mem memory via /dev/mem (David Hildenbrand) https://lkml.kernel.org/r/20210920142856.17758-1-david@redhat.com This patchset makes a basic infrastructure to exclude some physical memory regions that marked as IORESOURCE_SYSTEM_RAM from /dev/mem access, even though they are not marked as IORESOURCE_BUSY....

[PATCH v1] vmpressure: wake up work only when there is registration event (wangyong) https://lkml.kernel.org/r/1631548441-2784-1-git-send-email-wang.yong12@zte.com.cn Currently, vmpressure works are awaken even though there are no vmpressure callbacks. This commit avoids such unnecessary wakeup by counting the number of registered events and skip waking up works if the number is zero. [PATCH v3 00/76] Optimize list lru memory consumption (Muchun Song) https://lkml.kernel.org/r/20210914072938.6440-1-songmuchun@bytedance.com Muchun found kmalloc-32 for list_lru_one allocation consuming 6 GiB of memory on their server....