[PATCH] mm/cma: Add sysfs file ‘release_pages_success’ (Anshuman Khandual) https://lkml.kernel.org/r/20240206045731.472759-1-anshuman.khandual@arm.com
This patch adds a new sysfs file for tracking the number of successfully released pages from a given CMA heap area. It aims to be hulpful at determining available active CMA pages.
[PATCH v2] mm/demotion: print demotion targets (Li Zhijian) https://lkml.kernel.org/r/20240206020151.605516-1-lizhijian@fujitsu.com
Li Zhijian sent a patch for printing demotion target information in case of fallback for unmet requirements on the target node, directly to the kernel log.
[GIT PULL] hotfixes for 6.8-rc3 (Andrew Morton) https://lkml.kernel.org/r/20240128232759.7535e6774bec152556fb9730@linux-foundation.org
Andrew Morton sent a hotfixes pull request to Linus Torvalds.
[LSF/MM/BPF TOPIC] Reclaiming & documenting page flags (Matthew Wilcox) https://lkml.kernel.org/r/Zbcn-P4QKgBhyxdO@casper.infradead.org
Matthew proposes yet another LSFMM topic for discussing what page flags actually mean altogether, for better documentation.
[PATCH v7 0/1] mm: report per-page metadata information (Sourav Panda) https://lkml.kernel.org/r/20240129224204.1812062-1-souravpanda@google.com
Sourav from Google posted a patch for adding a new field on /proc/meminfo and /sys/devices/system/node/nodeN/vmstat called PageMetadata and nr_page_metadata respectively, which can helps understand how much memory are being used for page metadata.
Project: Improving the PCP allocator (Matthew Wilcox) https://lkml.kernel.org/r/Za6RXtSE_TSdrRm_@casper.infradead.org
Matthew introduces an idea to improve the PCP allocator, roughly saying, keeping only compound memory on the PCP list.
[PATCH v2 0/3] Enable >0 order folio memory compaction (Zi Yan) https://lkml.kernel.org/r/20240123034636.1095672-1-zi.yan@sent.com
Zi enables larger than zero order folio compaction, which is the prerequisite for large folio support.
[PATCH v2 1/3] mm: make vm_area_struct anon_name field RCU-safe (Suren Baghdasaryan) https://lkml.kernel.org/r/20240123231014.3801041-1-surenb@google.com
For lockless /proc/pid/maps reads, this patch makes anon_name field of vm_area_struct, which is the only one field that need to be accessed for reading the file but not RCU-protected, to be protected by RCU.
[GIT PULL] MM updates for 6.8-rc1 (Andrew Morton) https://lkml.kernel.org/r/20240108155039.fd2798712a2a93a108b710ce@linux-foundation.org/
Andrew Morton sent the memory management subsystem side pull request for Linux v6.8-rc1 to Linus Torvalds. The request has many interesting changes including zswap writeback improvement, Feedback-based DAMOS autotuning, Multi-size anon THP, KSM advisor and many more.
[GIT PULL] non-MM updates for 6.8-rc1 (Andrew Morton) https://lkml.kernel.org/r/20240109110420.dcdefe80d76257d9ff645a32@linux-foundation.org
Andrew sent yet another pull request for out of memory management subsystem changes to Linus Torvalds.
[PATCH v3 0/7] hugetlb: parallelize hugetlb page init on boot (Gang Li) https://lkml.kernel.org/r/20240102131249.76622-1-gang.li@linux.dev
The thrid version of hugetlb initialization prallelization patchset has posted.
[PATCH v3 00/11] Mitigate a vmap lock contention v3 (Uladzislau Rezki) https://lkml.kernel.org/r/20240102184633.748113-1-urezki@gmail.com
Third version of vmap lock contention mitigation patch has posted.
[PATCH v6 0/2] Add swappiness argument to memory.reclaim (Dan Schatzberg) https://lkml.kernel.org/r/20240103164841.2800183-1-schatzberg.dan@gmail.com
Sixth version of the patchset for letting memory.reclaim memcg file be used with swappiness argument has posted.
[PATCH] kernel: Introduce a write lock/unlock wrapper for tasklist_lock (Maria Yu) https://lkml.kernel.org/r/20231225081932.17752-1-quic_aiquny@quicinc.com
A patch introducing a write lock/unlock wrapper for tasklist_lock, to overcome bad responsive performance of system that coming from scenarios that acquiring read lock which wrote lock needed to be waiting for.
[PATCH v3 00/10] IOMMU memory observability (Pasha Tatashin) https://lkml.kernel.org/r/20231226200205.562565-1-pasha.tatashin@soleen.com
Third version of patchset to allow monitoring and limiting IOMMU memory usage is posted.
[GIT PULL] hotfixes for 6.
[PATCH v5 0/4] mm/ksm: Add ksm advisor (Stefan Roesch) https://lkml.kernel.org/r/20231218231054.1625219-1-shr@devkernel.io
Stefan posted the fifth version of the patchset for automatic and efficient tuning of kernel samepage merging.
[PATCH -next v4 0/2] Make memory reclamation measurable (Bixuan Cui) https://lkml.kernel.org/r/20231220012123.2787-1-cuibixuan@vivo.com
This patchset adds a new tracer to shrink_active_list(), shrink_inactive_list(), and shrinker->count_objects() to make memory recycling mesaurable with bpf.
[RFC PATCH 1/1] mm: mark folio accessed in minor fault (Zhaoyang Huang) https://lkml.kernel.org/r/20231220102948.1963798-1-zhaoyang.huang@unisoc.com
Inactive mapped folio is promoted to active only when it is scanned in shrink_inactive_list().
[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.
[PATCH] mm/thp: add CONFIG_TRANSPARENT_HUGEPAGE_NEVER option (Dmytro Maluka) https://lkml.kernel.org/r/20231204163254.2636289-1-dmaluka@chromium.org
Khugepaged has its own memory cost, and it increases vm.min_free_kbytes as it needs when it starts. On 4GB RAM, 3 mmzones and pageblock_order == MAX_ORDER, khugepaged increases vm.min_free_kbytes from 8MB to 132MB. This patch introduces a config to disallow khugepaged starts by default. It still allows the userspace to start khugepaged, though.
[PATCH v4 0/2] KSM: support smart-scan feature (Stefan Roesch) https://lkml.kernel.org/r/20231205180952.3843711-1-shr@devkernel.io
[PATCH v2] prctl: Get private anonymous memory region name (Rong Tao) https://lkml.kernel.org/r/tencent_77E0BC1E8E9A21CA1B9009DD66555C72A90A@qq.com
Now prctl() can set the name of anonymous vmas, but there is no option for getting the name. This patch implements the getter feature.
[RFC PATCH 0/6] Supporting GMEM (generalized memory management) for external memory devices (Weixi Zhu) https://lkml.kernel.org/r/20231128125025.4449-1-weixi.zhu@huawei.com
Because Linux kernels’ memory management system is mainly for only host DRAM, accelerator driver developers need to invent their own external memory management subsystems that feature similar functionality.