LKML News v5.19-rc5

[PATCH v3] docs: rename Documentation/vm to Documentation/mm (Mike Rapoport)

https://lkml.kernel.org/r/20220627060026.180439-1-rppt@kernel.org

As the subject says, this commit renames the Documentation/vm directory to Documentation/mm.

[PATCH v6 0/4] KVM: mm: count KVM mmu usage in memory stats (Yosry Ahmed)

https://lkml.kernel.org/r/20220628220938.3657876-1-yosryahmed@google.com

This patchset allows users account KVM mmu usages with NR_SECONDARY_PAGETABLE memory stat.

[RFC PATCH] mm/slub: enable debugging memory wasting of kmalloc (Feng Tang)

https://lkml.kernel.org/r/20220630014715.73330-1-feng.tang@intel.com

As kmalloc allocates memory in power of 2 granularity, it could waste a lot of memory. This patch therefore implements a way for tracking each kmalloc’s memory waste for bettr debugging.

[PATCH v3] mm: vmpressure: don’t count proactive reclaim in vmpressure (Yosry Ahmed)

https://lkml.kernel.org/r/20220630083044.997474-1-yosryahmed@google.com

This commit makes vmpressure to not be triggered by the reclaim caused by writing to memory.reclaim, as it is intended to be used while not affecting the performance.

[PATCH v4 00/45] Add KernelMemorySanitizer infrastructure (Alexander Potapenko)

https://lkml.kernel.org/r/20220701142310.2188015-1-glider@google.com

This patchset addds KernelMemorySanitizer infrastructure in Linux kernel.

Linux 5.19-rc5 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wgAOr-+OWLGo+aCMjGWiJ8xMYXUm0v5f-G+eizmPa3kKw@mail.gmail.com

The fifth release candidate has released in a slightly smaller than usual size. This might mean that that the previous release candidate was larger than usual just for a random timing issue.

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/relstat and https://github.com/sjp38/lazybox using below command:

$ relstat.py --since 2020-07-04 | ~/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 -rc5 releases in the last two years.