LKML News v6.5-rc3

[PATCH v4 0/6] Add support for memmap on memory feature on ppc64 (Aneesh Kumar K.V)

https://lkml.kernel.org/r/20230718024409.95742-1-aneesh.kumar@linux.ibm.com

The fourth version of the patchset for support of memmap on memory on ppc64 has posted.

[GIT PULL] hotfixes for 6.5-rc2 (Andrew Morton)

https://lkml.kernel.org/r/20230718123131.5ec065527c2127a568e5754c@linux-foundation.org

Andrew sent mm subsystem hotfixes for 6.5 rc2 to Linus.

[PATCH v2 0/5] Invalidate secondary IOMMU TLB on permission upgrade (Alistair Popple)

https://lkml.kernel.org/r/cover.de78568883814904b78add6317c263bf5bc20234.1689768831.git-series.apopple@nvidia.com

This patch moves secondary TLB invcalidation mmu notifier callbacks to architecture specific TLB flushing functions. The first version of the patch make build failures, so v2 has posted.

[PATCH v3 0/5] Invalidate secondary IOMMU TLB on permission upgrade (Alistair Popple)

https://lkml.kernel.org/r/cover.b24362332ec6099bc8db4e8e06a67545c653291d.1689842332.git-series.apopple@nvidia.com

The second version of this patchset caused NULL dereference issue. This version fixes it.

[PATCH] mm/hotplug: Enable runtime update of memmap_on_memory parameter (Aneesh Kumar K.V)

https://lkml.kernel.org/r/20230721131951.306706-1-aneesh.kumar@linux.ibm.com

This makes memmap_on_memory modue parameter permission from read only to read-write, so that it can be updated at runtime.

[RFC PATCH] Documentation/page_tables: MMU, TLB, and Page Faults (Fabio M. De Francesco)

https://lkml.kernel.org/r/20230722004451.7730-1-fmdefrancesco@gmail.com

This patch extends page_tables.rst by adding asection for MMU, TLB, and page faults.

Linux 6.5-rc3 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wi4Yau-3Bsv2rXYmtXMTLaj3=Wyf4cdM6d89czFvkVsRQ@mail.gmail.com

Like last week, things continue to look pretty normal without anything stands out, according to Linus Torvalds. As a result, the third v6.5 release candidate is available.

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 2021-07-24 | ~/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 -rc2 releases in the last two years.