Kernel

[PATCH 0/3] usable memory range fixes (arm64/fdt/efi) (Frank van der Linden) https://lkml.kernel.org/r/20220110210809.3528-1-fllinden@amazon.com This patchset fixes the usable memory range behavior when both DT and EFI are given. [PATCHv2 0/7] Implement support for unaccepted memory (Kirill A. Shutemov) https://lkml.kernel.org/r/20220111113314.27173-1-kirill.shutemov@linux.intel.com UEFI spec 2.9 introduces a concept of memory acceptance. It requires virtual machine platforms such as Intel TDX or AMD SEV-SNP to accept memory before use it. This patchset makes Linux kernel to support it, and therefore be able to reduce VM booting time by optimizing the acceptance....

[PATCH v4 00/32] Separate struct slab from struct page (Vlastimil Babka) https://lkml.kernel.org/r/20220104001046.12263-1-vbabka@suse.cz The work for seperating struct slab from struct page for making the struct page simpler is updated to fourth version. As the patchset was in -next tree for a while, Vlastimil would sent a pull request of this to Linus. [PATCH 0000/2297] [ANNOUNCE, RFC] “Fast Kernel Headers” Tree -v1: Eliminate the Linux kernel’s “Dependency Hell” (Ingo Molnar) https://lkml.kernel.org/r/YdIfz+LMewetSaEB@gmail.com...

[RFC v2] mm: introduce page pin owner (Minchan Kim) https://lkml.kernel.org/r/20211228175904.3739751-1-minchan@kernel.org Second version of the RFC for page pinning owner feature, which can be useful for tracking down who pins which page and therefore why contiguous pages allocation or migration fails. mmotm 2021-12-29-20-07 uploaded (Andrew Morton) https://lkml.kernel.org/r/20211230040740.SbquJAFf5%akpm@linux-foundation.org MM of the moment has updated. It’s rebased on v5.16-rc7, adds 32 new patches to the queue, drops 11 patches from the queue, and modifies 100 existing patches....

[PATCH v5 00/16] Optimize list lru memory consumption (Muchun Song) https://lkml.kernel.org/r/20211220085649.8196-1-songmuchun@bytedance.com Fifth version of the patchset for reducing lru memory consumption. This version fixes a sleep-in-atomic-context bug which is reported by the kernel test robot, applies some requests from Johannes, and collect Acked-by from Johannes. [PATCH 0/2] Add a new scheme to support demotion on tiered memory system (Baolin Wang) https://lkml.kernel.org/r/cover.1640077468.git.baolin.wang@linux.alibaba.com This patchset makes DAMOS supports demotion of memory regions....

[PATCH v4 00/17] Optimize list lru memory consumption (Muchun Song) https://lkml.kernel.org/r/20211213165342.74704-1-songmuchun@bytedance.com Muchun found 6GB of memory was consumed by kmalloc-32 slab cache on a machine having 952 super blocks. That was due to list_lru_one allocation from memcg_nr_cache_ids. This patchset aims to fix the issue. According to a simple test, this reduces memory consumption under a situation from 24GiB to 4GiB. mmotm 2021-12-13-21-28 uploaded (Andrew Morton) https://lkml.kernel.org/r/20211214052904.VfRYfitp0%akpm@linux-foundation.org Andrew Morton uploaded new mmotm....