LKML News v6.7-rc6

[Invitation] Linux MM Alignment Session on remap_file_pages on Wednesday (David Rientjes)

https://lkml.kernel.org/r/46f97bec-3a48-e714-0a8d-b5206e1704ba@google.com

There will be the last Linux MM Alignment Session for re-introducing remap_file_pages(), led by Matthew Wilcox, on 2023-11-13.

[PATCH] kernel: Introduce a write lock/unlock wrapper for tasklist_lock (Maria Yu)

https://lkml.kernel.org/r/20231213101745.4526-1-quic_aiquny@quicinc.com

There are multiple scenarios for tasklist_lock that could lead to bad responsiveness. To mitigate the situation, this patch introduces a write lock/unlock wrapper for tasklist_lock.

[PATCH 0/9] Finish two folio conversions (Matthew Wilcox)

https://lkml.kernel.org/r/20231211162214.2146080-1-willy@infradead.org

This patchset finishes the folio conversions for page_add_new_anon_ramp() and lru_cache_add_inactive_or_unevictable().

[RFC PATCH v3 00/11] Introduce mseal() (Jeff Xu)

https://lkml.kernel.org/r/20231212231706.2680890-1-jeffxu@chromium.org

Third version of the patchset introducing an architecture independent VMA protection systemcall, mseal() has posted.

[RFC PATCH v2 0/2] Node migration between memory tiers (Srinivasulu Thanneeru)

https://lkml.kernel.org/r/20231213175329.594-1-sthanneeru.opensrc@micron.com

This patchset supports node migration between tiers on sysadmin’s demand.

[PATCH v4 0/4] mm/ksm: Add ksm advisor (Stefan Roesch)

https://lkml.kernel.org/r/20231213182729.587081-1-shr@devkernel.io

This patchset adds an automatic setting manager for pages_to_scan of ksm.

mm/DAMON: Profiling enhancements for DAMON (Aravinda Prasad)

https://lkml.kernel.org/r/20231215074619.173787-1-aravinda.prasad@intel.com

A patchset for improving DAMON’s accuracy using higher level page table accessed bit has posted. It is what used for a recent arXiv paper (https://arxiv.org/pdf/2311.10275.pdf).

[GIT PULL] hotfixes for 6.7-rc6 (Andrew Morton)

https://lkml.kernel.org/r/20231215071604.946a433bbc05a6409faf5a33@linux-foundation.org

Andrew sent hotfixes pull request for v6.7-rc6. As a reply, Linus Torvalds asking a plan to making MGLRU only one model.

Linux 6.7-rc6 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wi17USyiO=G0yDXP62eqU3V6x3ck0HcnVMPKHNPsBP_ig@mail.gmail.com

Linus released the sixth release candidate for Linux v6.7. Though Mellanox and intel iavf ethernet driver, some legacy debugging code removal, and filesystems including smb, btrfs, bcachefs and fuse got some unusual changes, but nothing really stands out. If we don’t have extension of the rc period, v6.7 would be released at 2024-01-01.

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 2021-12-18 | ~/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 -rc6 releases in the last two years.