Posts

[PATCH] maple_tree: shrink struct maple_tree from 24 to 16 bytes on LP64 (Mateusz Guzik) https://lkml.kernel.org/r/20230821225145.2169848-1-mjguzik@gmail.com This patchset moves ma_root field to be placed after ma_flags to plug a padding hole of struct mape_tree, to reduce the size of the struct. idea for scalable and almost waste-free percpu counter alloc (was: Re: [PATCH 0/2] execve scalability issues, part 1) (Mateusz Guzik) https://lkml.kernel.org/r/CAGudoHH-b5R+COHUtns92NTzSVeT1ECMHb22SEcH_108Pi0FTQ@mail.gmail.com Mateusz is suggesting another idea for scalable and almost-waste-free percpu counter alloc....

[MAINTAINERS SUMMIT] Handling of embargoed security issues – security@korg vs. linux-distros@ (Jiri Kosina) https://lkml.kernel.org/r/nycvar.YFH.7.76.2308150927190.14207@cbobk.fhfr.pm Yet another maintainers summit agenda proposal about security issue handling has posted. There are securitiy@korg and linux-distros@. The kernel community wants to do handling of the security fixes from only security@, without being bothered by linux-distros@. Jiri proposes to discuss about if it could eventually better handled with linux-distros@. Maintainers Summit 2023 Call for Topics (Theodore Ts’o) https://lkml....

[RFC PATCH 0/3] Reduce NUMA balance caused TLB-shootdowns in a VM (Yan Zhao) https://lkml.kernel.org/r/20230808071329.19995-1-yan.y.zhao@intel.com For virtual machines having assigned devices or VFIO mediated devices, all or part of its memory are pinned for long-term. Auto NUMA balancing can cause unnecessary TLB-shootdowns. This RFC patchset proposes a solution for that. [PATCH v2] cma: introduce CMA_ALLOC_DEBUG config (Bibek Kumar Patro) https://lkml.kernel.org/r/20230809131640.18791-1-quic_bibekkum@quicinc.com CONFIG_CMA_DEBUG makes all CMA debugging message enabled. This can results in flooding the dmesg buffer....

[PATCH] MAINTAINERS: Add maple tree mailing list (Liam R. Howlett) https://lkml.kernel.org/r/20230731175542.1653200-1-Liam.Howlett@oracle.com Maple tree has its own development mailing list at infradead.org. This patch adds it on the MAINTAINERS file. Maple Tree Work 2023/08 (Laim R. Howlett) https://lkml.kernel.org/r/20230801194820.alch3ot7pvrgig5v@revolver Liam shares monthlee update of maple tree work progress and todo for avoid conflict. [RFC PATCH 0/2] vmrd: dynamic guest VM memory resizing daemon (Sudarshan Rajagopalan) https://lkml.kernel.org/r/cover.1690836010.git.quic_sudaraja@quicinc.com Sudarshan posted an RFC for dynamic guest VM memory resizing based on the guest’s memory demand....

[PATCH v5 0/7] Add support for memmap on memory feature on ppc64 (Aneesh Kumar K.V) https://lkml.kernel.org/r/20230725100212.531277-1-aneesh.kumar@linux.ibm.com Aneesh continues adding support of memmap_on_memory for more architectures. [PATCH mm-unstable v7 00/31] Split ptdesc from struct page (Vishal Moola) https://lkml.kernel.org/r/20230725042051.36691-1-vishal.moola@gmail.com The seventh revision of the patchset for splitting page table tracking information out of struct page for making it smaller. [PATCH v3 00/49] use refcount+RCU method to implement lockless slab shrink (Qi Zheng) https://lkml....