Lkml_news_v5

[PATCH v9 0/9] mm: introduce memfd_secret system call to create “secret” memory areas (Mike Rapoport)

https://lkml.kernel.org/r/20201117162932.13649-1-rppt@kernel.org

The 9th version of the memfd_secret patchset.

[patch V4 0/8] mm/highmem: Preemptible variant of kmap_atomic & friends (Thomas Gleixner)

https://lkml.kernel.org/r/20201118194838.753436396@linutronix.de

As the name suggests, this patchset allow the code using kmap_atomic and similar things to be preemptible. This incur some overhead to highmem, but Thomas claims highmem was always slow.

[PATCH 0/7] Split huge pages to any lower order pages and selftests. (Zi Yan)

The patchset adds support for any order pages that could be used as a pagecache THP after Matthew’s work.

Linux 5.10-rc5 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wiYHcVOuZo8LNn__OgqY_ePW3BSPW8FxZbfChrT8SHnuw@mail.gmail.com

This is the biggest rc5 in the 5.x series. The changes looks normal to Linus, but the rc5 releases are normally supposed to start calmdown and shrink. Linus also note that he hope things to calm down. If not, the 5.10 release might come out in the holiday season.

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 2018-11-23 | ~/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.