Lkml News

[PATCH v5] mm: oom: introduce cpuset oom (Gang Li) https://lkml.kernel.org/r/20230411134539.45046-1-ligang.bdlg@bytedance.com This patch makes oomkiller to aware of numa nodes of processes that assigned via cpuset so that real memory pressure tirggeered process can be picked as victim of the pressure. [LSF/MM/BPF TOPIC] Reducing zombie memcgs (T.J. Mercier) https://lkml.kernel.org/r/CABdmKX2M6koq4Q0Cmp_-=wbP0Qa190HdEGGaHfxNS05gAkUtPA@mail.gmail.com Memcg lives in the kernel until the reference count drops to zero, even if it’s removed by userspace. This zombie-like memcg consumes system resource and makes kernel operations that get affected by the total number of memcg less efficient....

[PATCH 0/6] Avoid the mmap lock for fault-around (Matthew Wilcox) https://lkml.kernel.org/r/20230404135850.3673404-1-willy@infradead.org A patchset for gradually pushing the mmap lock down. No specific regression found, but also no special performance improvement measured. [PATCH] memcg-v1: Enable setting memory min, low, high (Shaun Tancheff) https://lkml.kernel.org/r/20230405110107.127156-1-shaun.tancheff@gmail.com For users who cannot update to memcg v2, this patch provides a way for memcg v1 to effectively apply memory pressure, which can be used for effectively throttle file I/O....

[PATCH] LoongArch: Add kernel address sanitizer support (Qing Zhang) https://lkml.kernel.org/r/20230328111714.2056-1-zhangqing@loongson.cn Loongarch has arch specific memory holes and mapping formula. This patch adds kasan support for Loongarch. [PATCH v2 0/7] Split a folio to any lower order folios (Zi Yan) https://lkml.kernel.org/r/20230329011712.3242298-1-zi.yan@sent.com Currently, split_huge_page() splits huge page to only order 0 pages. This patchset adds support of splitting a huge page to any lower order pages. [PATCHv9 00/14] mm, x86/cc: Implement support for unaccepted memory (Kirill A....

[PATCH 00/15] mm: move core MM initialization to mm/mm_init.c (Mike Rapoport) https://lkml.kernel.org/r/20230319220008.2138576-1-rppt@kernel.org This patchset consolidates MM initialization code to mm/mm_init.c file for better maintainability. [PATCH -next v6 0/2] Delay the initialization of zswap (Liu Shixin) https://lkml.kernel.org/r/20230322102006.780624-1-liushixin2@huawei.com This patchset delays zswap initialization until it gets enabled to save about 18MB of memory, which is allocated during the initialization. [PATCH V6 1/2] mm: compaction: move compaction sysctl to its own file (Minhao Chi) https://lkml....

[LSF/MM/BPF TOPIC] SLOB+SLAB allocators removal and future SLUB improvements (Vlastimil Babka) https://lkml.kernel.org/r/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz Linux kernel has three objects allocators, namely SLOB, SLAB, and SLUB. Vlastimil and many developers have tried to make it only one single allocator. Deprecation of SLOB has made some progress so far. Vlastimil proposes an LSF/MM/BPF topic for discussing deprecation of SLAB and SLUB futur eimprovement. [GIT PULL] hotfixes for 6.3-rc1 (Andrew Morton) https://lkml.kernel.org/r/20230314165437.a2d992731a970582fe36aaba@linux-foundation.org Yet another mm subsystem hotfixes pull request has sent to Linus Torvalds....