LKML News v6.3-rc4

[PATCH 00/15] mm: move core MM initialization to mm/mm_init.c (Mike Rapoport)

https://lkml.kernel.org/r/20230319220008.2138576-1-rppt@kernel.org

This patchset consolidates MM initialization code to mm/mm_init.c file for better maintainability.

[PATCH -next v6 0/2] Delay the initialization of zswap (Liu Shixin)

https://lkml.kernel.org/r/20230322102006.780624-1-liushixin2@huawei.com

This patchset delays zswap initialization until it gets enabled to save about 18MB of memory, which is allocated during the initialization.

[PATCH V6 1/2] mm: compaction: move compaction sysctl to its own file (Minhao Chi)

https://lkml.kernel.org/r/202303221108054628708@zte.com.cn

This patch moves all sysctls for compaction to its own file.

[PATCH 0/5] selftests/mm: Implement support for arm64 on va (Chaitanya S Prakash)

https://lkml.kernel.org/r/20230323105243.2807166-1-chaitanyas.prakash@arm.com

This patchset makes va_128TBswitch.c mm selftests, which is for only PowerPC and x86, to supports arm64 together. Because Arm64 supports 256TB switch, this also rename the test to va_high_addr_switch.

Linux 6.3-rc4 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=whcaHLNpb7Mu_QX7ABwPgyRyfW-V8=v4Mv0S22fpjY4JQ@mail.gmail.com

The fourth release candidate for Linux 6.3 has released with a pretty normal shape. The diffstat is skewed to filesystem though, due to bulky xfs fixes, though.

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 2021-03-27 | ~/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 -rc4 releases in the last two years.