LKML News v6.9-rc4

[PATCH v4 0/9] transfer page to folio in KSM (Alex Shi)

https://lkml.kernel.org/r/20240409092826.1733637-1-alexs@kernel.org

Alex sent the first patchset for making KSM uses folios.

[PATCH] tracing: Add new_exec tracepoint (Marco Elver)

https://lkml.kernel.org/r/20240408090205.3714934-1-elver@google.com

Marco sent a patch for adding a new tracepoint. The tracepoint is for tracing a case where new exec starts while having original state including the mm.

Announcing Community Engagement Working Group (Nikolai Kondrashov)

https://lkml.kernel.org/r/bf81be70-61ec-4169-b66a-5c3136869107@gmail.com/

KernelCI project announces Community Engagement Working Group which will purpose to connect with kernel maintainers and discuss test quality improvement for their subsystems.

[PATCH] mm,page_owner: Defer enablement of static branch (Oscar Salvador)

https://lkml.kernel.org/r/20240409131715.13632-1-osalvador@suse.de

To fix a memory leak that Kefeng reported, Oscar wrote this patch that defers enablement of static branches that could causes races otherwise.

[PATCH v2] tracing: Add sched_prepare_exec tracepoint (Marco Elver)

https://lkml.kernel.org/r/20240411102158.1272267-1-elver@google.com

Marco sent the second version of new_exec tacepoint patchset renaming it to sched_prepare_exec.

Linux 6.9-rc4 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=whdUP62_7N6s837tTFjvmcGxyRnMGwnVnZwn2fDVf5E8A@mail.gmail.com

Linux 6.9-rc4 is out without nothing special for Linus. Linus mentions the hardware mitigation for BHI is not special anymore, since such mitigations existed more than a decade now.

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/lazybox using below command:

$ relstat.py --since 2022-04-15 | ~/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.