LKML News v5.11-rc4

[PATCH] mm: thp: introduce NR_PARTIAL_THPS (Bin Wang)

https://lkml.kernel.org/r/20210112021208.1875-1-wangbin224@huawei.com

Because partially unmapped THP is not split, the memory stat becomes confusing. This patch add another counter called NR_PARTIAL_THPS in node_stat_item to reduce such confusions.

[PATCH v2 00/70] RFC mm: Introducing the Maple Tree (Liam R. Howlett)

https://lkml.kernel.org/r/20210112161240.2024684-1-Liam.Howlett@Oracle.com

Second RFC of the Maple tree. It is an RCU-safe B-tree that aims to be used as the vma tree with better scalability.

[PATCH] mm/debug: Improve memcg debugging (Matthew Wilcox)

https://lkml.kernel.org/r/20210114190200.1894484-1-willy@infradead.org

This patch modifies __dump_page() to show memcg information better.

[PATCH v2 0/5] Add sysfs interface to collect reports from debugging tools (Alexander Potapenko)

https://lkml.kernel.org/r/20210115130336.2520663-1-glider@google.com

This patch adds a library that can be used for error report from debugging tools, and make KASAN and KFENCE to use the library for error report. The error report can be accessed from the user space via the sysfs.

Linux 5.11-rc4 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wjGqX0BFV0eH9R=9m2Xezib0w8Ty2zEc6XDJ73zNRPuPQ@mail.gmail.com

The fourth release candidate for v5.11 is out with normal shape. No big, no small, just average. This also includes NVIDIA ampere support.

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 2019-01-18 | ~/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.