LKML News v6.12-rc1

[GIT PULL] slab updates for 6.11 (Vlastimil Babka)

https://lore.kernel.org/8d6c5d10-5750-4472-858c-eadc105453be@suse.cz

Vlastimil sent the slab pull request for Linux 6.12-rc1. Apparently the title is a typo.

[RFC PATCH 0/4] Add hazard pointers to kernel (Boqun Feng)

https://lore.kernel.org/20240917143402.930114-1-boqun.feng@gmail.com

Boqun posted a patch series for introducing hazard pointers for kernel space, which is “a scalable reference counting mechanism with RCU-like API”.

[GIT PULL] hotfixes for 6.12-rc1 (Andrew Morton)

https://lore.kernel.org/20240919003557.1777673c0f759f9e4ebaa328@linux-foundation.org

Andrew sent a hotfixes pull request for 6.12-rc1.

[GIT PULL] MM updates for 6.12-rc1 (Andrew Morton)

https://lore.kernel.org/20240920023317.f20c9ecbb2a2f4bf382d831c@linux-foundation.org

Andrew posted the MM subsystem update pull request for Linux 6.12-rc1 to Linus.

[RFC PATCH v1 0/2] Userspace Can Control Memory Failure Recovery (Jiaqi Yan)

https://lore.kernel.org/20240924043924.3562257-1-jiaqiyan@google.com

Jiaqi lists two use cases of memory failure recovery control from user space for cloud providers, and suggest kernel changes for support of such controls.

[PATCH V2 0/2] Introduce panic function when slub leaks (Fangzheng Zhang)

https://lore.kernel.org/20240925132505.21278-1-fangzheng.zhang@unisoc.com

Fangzheng posted a patch series for introducing a way to detect slub leaks and doing a panic in the case.

[RFC PATCH v2 0/2] Support large folios for tmpfs (Baolin Wang)

https://lore.kernel.org/cover.1727338549.git.baolin.wang@linux.alibaba.com

Baoling posted the second version of his RFC patch series for supporting large folios for tmpfs.

[PATCH v7 0/8] mm: ZSWAP swap-out of mTHP folios (Kanchana P Sridhar)

https://lore.kernel.org/20240924011709.7037-1-kanchana.p.sridhar@intel.com

Kanchana sent the seventh version ofhis patch series for enabling zswap_store() to accept/store mTHP folios.

Next steps towards shrinking stuct page (Matthew Wilcox)

https://lore.kernel.org/ZvRKzKizOfEWBtJp@casper.infradead.org

Matthew shares his plans for shrinking the size of struct page in response to Yu’s question.

[PATCH v2 0/6] Split list_lru lock into per-cgroup scope (Kairui Song)

https://lore.kernel.org/20240925171020.32142-1-ryncsn@gmail.com

Kairui sent the second version of the patch series for splitting list_lru lock per cgroup instead of per node, to reduce the lock contention.

[RFC/PATCH bpf-next 0/3] bpf: Add slab iterator and kfunc (v1) (Namhyung Kim)

https://lore.kernel.org/20240925223023.735947-1-namhyung@kernel.org

Namhyung proposes a new iterator and a kfunc for slab to get /proc/slabinfo like infomration for each kmem_cache.

[RFC PATCH 0/4] implement lightweight guard pages (Lorenzo Stoakes)

https://lore.kernel.org/cover.1727440966.git.lorenzo.stoakes@oracle.com

Lorenzo proposes a light approach for ‘guard pages’ that doesn’t rely on additional vma. The approach add the ‘guard’ information in page tables instead of additional vmas. The implementation uses new madvise() hints, namely MADV_GUARD_POISON and MADV_GUARD_UNPOISON.

Linux 6.12-rc1 (Linus Torvalds)

https://lore.kernel.org/CAHk-=wiwVOCZsC6a4dLdb1UjL2fS_CnLNjrPL0XGFbDd9C26Cg@mail.gmail.com

After the two weeks of the merge window, Linus Torvalds announces the first release candidate for Linux v6.12 and closes the merge window. Torvalds further introduces PREEMT_RT and sched_ext as noticeable new features for Linux v6.12.