LKML News v5.14-rc6

[PATCH v9 1/2] mm: introduce process_mrelease system call (Suren Baghdasaryan) https://lkml.kernel.org/r/20210809185259.405936-1-surenb@google.com 9th version of the patchset which introducing a new system call for releasing memory of a process in a speedy manner. mmotm 2021-08-09-19-18 uploaded (Andrew Morton) https://lkml.kernel.org/r/20210810021934.XcpwGUEMn%akpm@linux-foundation.org -mm tree updated. [PATCH 0/5] x86: Impplement support for unaccepted memory (Kirill A. Shutemov) https://lkml.kernel.org/r/20210810062626.1012-1-kirill.shutemov@linux.intel.com Some platforms like Intel TDX or AMD SEV-SNP require memory to be accepted before it can be used by the guest....

August 10, 2021 · 2 min · 240 words · Me

LKML News v5.14-rc5

[PATCH 0/3] mm: optimize thp for reclaim and migration (Yu Zhao) https://lkml.kernel.org/r/20210731063938.1391602-1-yuzhao@google.com This patchset drops subpages of THPs which contain only zero contents when splitting those, to reduce memory pressure overheads due to THP internal fragmentations. [PATCH v4 1/2] mm: introduce process_mrelease system call (Suren Baghdasaryan) https://lkml.kernel.org/r/20210802221431.2251210-1-surenb@google.com This patchset introduces a new system call, namely process_mrelease(). It can be used to quickly release memory of a process. [PATCH v7 0/5] Introduce multi-preference mempolicy (Feng Tang) https://lkml....

August 3, 2021 · 2 min · 277 words · Me

LKML News v5.14-rc4

mmotm 2021-07-28-18-24 uploaded (Andrew Morton) https://lkml.kernel.org/r/20210729012524.S8-WP%akpm@linux-foundation.org Andrew Morton is updating the -mm tree. incoming (Andrew Morton) https://lkml.kernel.org/r/20210729145259.24681c326dc3ed18194cf9e5@linux-foundation.org Seven fixup patches from Andrew Morton. [PATCH 0/3] mm: optimize thp for reclaim and migration (Yu Zhao) https://lkml.kernel.org/r/20210731063938.1391602-1-yuzhao@google.com This patch optimizes THP split for reclaim or migration by dropping subpages that contain only zeroes. Linux 5.14-rc4 (Linus Torvalds) https://lkml.kernel.org/r/CAHk-=whv0g5YqoRXc8oxqJX3r+GP1dN3ia_Qg_V6UTjhi8vg8w@mail.gmail.com After one week, entirely normal rc4 is released. 5.14 is not so far now....

July 29, 2021 · 1 min · 135 words · Me

LKML News v5.14-rc3

[PATCH 0/7] Free user PTE page table pages (Qi Zheng) https://lkml.kernel.org/r/20210718043034.76431-1-zhengqi.arch@bytedance.com This patchset frees user PTE page table pages when all PTE entries are empty, to reduce the memory overhead due to page tables. [PATCH v15 00/17] Folio support in block + iomap layers (Matthew Wilcox) https://lkml.kernel.org/r/20210719184001.1750630-1-willy@infradead.org Seems memory folios patchset is now merged in -mm tree and -next tree. This patchset further updates iomap to use folios. Runtime Memory Validation in Intel-TDX and AMD-SNP (Joerg Roedel) https://lkml....

July 20, 2021 · 2 min · 367 words · Me

LKML News v5.14-rc2

[PATCH v6 0/6] Introduce multi-preference mempolicy (Feng Tang) https://lkml.kernel.org/r/1626077374-81682-1-git-send-email-feng.tang@intel.com Six version of the patchset that allows applications to set multiple preferred memory policy. [PATCH v1] madvise.2: Document MADV_POPULATE_READ and MADV_POPULATE_WRITE (David Hildenbrand) https://lkml.kernel.org/r/20210712083917.16361-1-david@redhat.com This patch documents the new madvise() options, MADV_POPULATE_(READ|WRITE). Request for folios (David Howells) https://lkml.kernel.org/r/3398985.1626104609@warthog.procyon.org.uk David is working for improving local filesystem’s caching and network filesystem support library. He thinks the folio work would make his work easier, though it also makes some of his work challenging....

July 13, 2021 · 2 min · 367 words · Me