LKML News v6.12-rc2

[PATCH v2 1/2] virt: pvmemcontrol: control guest physical memory properties (Yuanchu Xie)

https://lore.kernel.org/20241001011328.2806686-1-yuanchu@google.com

Yuanchu posted the second version of a patch series for pvmemcontrol, which allows VM guests control their physcial memory properties and enable security features optimizations.

[Invitation] Linux MM Alignment Session on shared PTEs across processes on Wednesday (David Rientjes)

https://lore.kernel.org/eb2ce2c1-9fbd-215b-9973-7ec515c14015@google.com

Dadiv shares next Linux MM alignment session will be held this Wednesday. The topic will be “Add support for shared PTEs across processes”, aka mshare().

[RFC PATCH 0/2] cpufreq_ext: Introduce cpufreq ext governor (Yipeng Zou)

https://lore.kernel.org/20240927101342.3240263-1-zouyipeng@huawei.com

Yipeng posted an RFC patch series for making cpu frequency governors extensible using BPF, similar to sched_ext. One quick question from Alexei is that isn’t it also available using sched_ext.

[PATCH slab hotfixes v2 0/2] slub kunit tests fixes for 6.12 (Vlastimil Babka)

https://lore.kernel.org/20241001-b4-slub-kunit-fix-v2-0-2d995d3ecb49@suse.cz

Vlastimil sent hotfixes for SLAB kunit tests, which was added for Linux v6.12.

[RFC PATCH 0/4] sched+mm: Track lazy active mm existence with hazard pointers (Mathiew Desnoyers)

https://lore.kernel.org/20241002010205.1341915-1-mathieu.desnoyers@efficios.com

Matthew found hazard pointers could be goot for replacing reference counting based lazy active mm tracking, and sent an RFC patch series for that. On the cover letter, he shares 3-28% speedup of will-it-scale context_switch1_threads results.

[PATCH v8 00/29] Generic Allocator support for Rust (Danilo Krummrich)

https://lore.kernel.org/20241001150008.183102-1-dakr@kernel.org

Dasnilo sent the eighth version of the patch series that adds generic kernel allocator support for Rust.

[syzbot] Monthly mm report (Oct 2024) (syzbot)

https://lore.kernel.org/66fe5d9e.050a0220.28a3b.020d.GAE@google.com

Syzbot reports the monthly statistics for mm. Last month, 10 new issues were detected and 4 were fixed. 79/263 total open/fixed issues for mm so far.

[PATCH 0/5] Remove PageKsm() (Matthew Wilcox)

https://lore.kernel.org/20241002152533.1350629-1-willy@infradead.org

Matthew posted a patch series removing PageKsm() in favor of the folio version.

Linux 6.12-rc2 (Linus Torvalds)

https://lore.kernel.org/CAHk-=wgMS-TBfirwuxf+oFA3cTMWVLik=w+mA5KdT9dAvcvhTA@mail.gmail.com

Linus Torvalds released the second candidate for Linux 6.12 with longer than usual release note. He notes that rc2 is larger than usual, but no real weird and scary things are there.