LKML News v5.17-rc1

[PATCH 0/3] usable memory range fixes (arm64/fdt/efi) (Frank van der Linden)

https://lkml.kernel.org/r/20220110210809.3528-1-fllinden@amazon.com

This patchset fixes the usable memory range behavior when both DT and EFI are given.

[PATCHv2 0/7] Implement support for unaccepted memory (Kirill A. Shutemov)

https://lkml.kernel.org/r/20220111113314.27173-1-kirill.shutemov@linux.intel.com

UEFI spec 2.9 introduces a concept of memory acceptance. It requires virtual machine platforms such as Intel TDX or AMD SEV-SNP to accept memory before use it. This patchset makes Linux kernel to support it, and therefore be able to reduce VM booting time by optimizing the acceptance.

[PATCH v2 0/2] powerpc/fadump: handle CMA activation failure appropriately (Hari Bathini)

https://lkml.kernel.org/r/20220112193340.149020-1-hbathini@linux.ibm.com

CMA based memory reservation for fadump doesn’t aware CMA activation failures. This patch makes it to aware the failure and handle it appropriately.

[RFC PATCH 0/3] Add hugetlb MADV_DONTNEED support (Mike Kravetz)

https://lkml.kernel.org/r/20220113180308.15610-1-mike.kravetz@oracle.com

Hugetlbfs does not support MADV_DONTNEED for now, but it’s not really so hard to make it support the hint. This patch enables the support.

[RFC PATCH v2 0/5] User Managed Concurrency Groups (Peter Oskolkov)

https://lkml.kernel.org/r/20220113233940.3608440-1-posk@google.com

This patchset is an updated version of the user-managed concurrency group, which adds two patches from Peter Zijlstra.

incoming (Andrew Morton)

https://lkml.kernel.org/r/20220114140222.6b14f0061194d3200000c52d@linux-foundation.org

Andrew sends 146 patches for v5.17 mm subsystem to Linus Torvalds.

[PATCH 00/12] Enabling large folios for 5.17 (Matthew Wilcox)

https://lkml.kernel.org/r/20220116121822.1727633-1-willy@infradead.org

This patchset enables large folios on THP enabled machine when XFS is used. More specifically, it makes readaheads to use large folios. This is not for v5.17, though.

[GIT PULL] slab for 5.17 - part 2 (Vlastimil Babka)

https://lkml.kernel.org/r/06e9cd6c-320c-af1a-ef12-55e2e8c13f17@suse.cz

Second pull request for remaining slab patches in the development tree. Specifically, this pull request finish the conversion to struct slab by removing slab-specific fields from struct page.

[RFC PLAN] Some humble ideas for DAMON future works (SeongJae Park)

https://lkml.kernel.org/r/20220119133110.24901-1-sj@kernel.org

A roadmap of DAMON work has shared.

incoming (Andrew Morton)

https://lkml.kernel.org/r/20220119180714.9e187ce100e4510de3cd9f7d@linux-foundation.org

Second pull request for mm/ from Andrew Morton to Linus Torvalds has sent.

[RFC][PATCH v2 0/5] sched: User Managed Concurrency Groups (Peter Zijlstra)

https://lkml.kernel.org/r/20220120155517.066795336@infradead.org

Another update on the RFC stage patchset for user-managed concurrency groups.

incoming (Andrew Morton)

https://lkml.kernel.org/r/20220121221021.60533b009c357d660791476e@linux-foundation.org

Yet another pull request for post-linux-next patches (69 in total) are sent from Andrew Morton to Linus Torvalds.

Linux 5.17-rc1 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=whUYZvNVtNc4Xftd8aDpZzuwswBtHG4fCYQ2AC3twh_5Q@mail.gmail.com

A couple of hors earlier than usual, the rc1 for 5.17 has released. It’s not a huge release.

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 2020-01-24 | ~/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 -rc1 releases in the last two years.