LKML News v6.9-rc7

[PATCH] thp: Remove HPAGE_PMD_ORDER minimum assertion (Matthew Wilcox)

https://lkml.kernel.org/r/20240429190114.3126789-1-willy@infradead.org

Willy removes the assumption that THP order is always two or more, since we now handle order-1 folios correctly.

[LSF/MM/BPF TOPIC] SLUB: what’s next? (Vlastimil Babka)

https://lkml.kernel.org/r/b929d5fb-8e88-4f23-8ec7-6bdaf61f84f9@suse.cz

Vlastimil proposes an LSFMM session to retrospect the SLAB deprecation, share ongoing works, and discuss possible future works for reducing similar allocators such as objpool or mempool.

[LSF/MM/BPF TOPIC] Maple Tree Proposed Features (Liam R. Howlett)

https://lkml.kernel.org/r/rqvsoisywsbb326ybechwwgpdrdt57sngr2zwwrbp2riyi7ml5@uppobkrmbxoz

Liam suggests an LSFMM topic to discuss what Maple Tree functionality people want/need for their projects.

[PATCHSET v6] sched: Implement BPF extensible scheduler class (Tejun Heo)

https://lkml.kernel.org/r/20240501151312.635565-1-tj@kernel.org

Tejun posted the sixth version of the sched-ext patchset. In the patchset, he introduces wide and ongoing adoption of the patchset, explaining why it should be merged.

[PATCH] cgroup: Add documentation for missing zswap memory.stat (Usama Arif)

https://lkml.kernel.org/r/20240501095349.1407643-1-usamaarif642@gmail.com

Usama posted a patchset updating memory.stat documentation for zswp{in,out,wb}.

[PATCH v15 00/20] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support (Michael Roth)

https://lkml.kernel.org/r/20240501085210.2213060-1-michael.roth@amd.com

Michael sent fifteenth version of the AMD SEV-SNP hyperviso support patchset.

[PATCH 0/5] ioctl()-based API to query VMAs from /proc//maps (Andrii Makryiko)

https://lkml.kernel.org/r/20240504003006.3303334-1-andrii@kernel.org

Andrii adds ioclt()-based binary API for querying VMAs, more efficiently than text-based maps file reading.

[PATCH v1 0/7] mm: workingset reporting (Yuanchu Xie)

https://lkml.kernel.org/r/20240504073011.4000534-1-yuanchu@google.com

Yuanchu dropped the RFC tag from his workingset reporting patchset and posted the first version.

Linux 6.9-rc7 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wiT0EJV+X-=-dMmL+q3_kyQCxV-WPxb8m8Q6dtWOxjCcg@mail.gmail.com

Linus released the seventh candidate for Linux v6.9. Statistics looks normal, nothing is alarming. We may get the Linux v6.9 next Sunday.

Below is the diffstat of the releases in the last two years.

Note that the y-axis is in logarithm. I draw it using https://github.com/sjp38/lazybox using below command:

$ relstat.py --since 2022-04-29 | ~/lazybox/gnuplot/plot.py \
    --data_fmt table --type labeled-lines --xtics_rotate -90 \
    --font "Times New Roman, 5pt" --ylog --pointsize 0.3

And, below is the diffstat of the -rc6 releases in the last two years.