Kernel

[LPC 2022] Kernel Memory Management Microconference - next Monday! (Vlastimil Babka) https://lkml.kernel.org/r/e918dd3c-aa71-c510-4a50-4f9882bca3e8@suse.cz Vlastimil and Matthew are reminding about the kernel memory management microconference, which will be held as a part of the LPC this year, in Dublin. [PATCH v6 00/44] Add KernelMemorySanitizer infrastructure (Alexander Potapenko) https://lkml.kernel.org/r/20220905122452.2258262-1-glider@google.com Sixth iteration of the KMSAN infra patchset has posted. [PATCH v3 0/2] Introduce CABA helper process tree (Pavel Tikhomirov) https://lkml.kernel.org/r/20220908140313.313020-1-ptikhomirov@virtuozzo.com Current linux process tree looses the information in which subtree the child was originally born, after the children is died and therefore reparented....

[RFC PATCH 00/28] per-VMA locks proposal (Suren Baghdasaryan) https://lkml.kernel.org/r/20220829212531.3184856-1-surenb@google.com The VMA lock scalability issue is still there. This RFC patchset shows the proof of the concept for the per-VMA lock idea, which was discussed in LSF/MM this year, as part of the SPF discussion. [RFC PATCH 00/30] Code tagging framework and applications (Suren Baghdasaryan) https://lkml.kernel.org/r/20220830214919.53220-1-surenb@google.com This RFC patchset introduces code tagging framework which can identify a specific location in the source code when compile....

[mm] 96db82a66d: will-it-scale.per_process_ops -95.3% regression (kernel test robot) https://lkml.kernel.org/r/YwIoiIYo4qsYBcgd@xsang-OptiPlex-9020 A big regression of mm multi-cpu scalability test (will-it-scale) has found by the kernel test robot. The commit 96db82a66d1db0e2966c02dc492e02eeb3a94a75 (“mm: align larger anonymous mappings on THP bundaries”) is pointed out as the suspect. [PATCH v13 00/70] Introducing the Maple Tree (Liam Howlett) https://lkml.kernel.org/r/20220822150128.1562046-1-Liam.Howlett@oracle.com The thirteenth version of the maple tree patchset has posted after rebased on latest mm-unstable and fixed some bugs....

[PATCH v14 00/14] Multi-Gen LRU Framework (Yu Zhao) https://lkml.kernel.org/r/20220815071332.627393-1-yuzhao@google.com Fourteenth version of MGLRU patch has rebased on the latest mm-unstable and posted again. This may be merged in the mm tree. folio_map (Matthew Wilcox) https://lkml.kernel.org/r/YvvdFrtiW33UOkGr@casper.infradead.org Matthew explains his proposal on folio_map in detail and asks if others have better ideas. [PATCH v3] mm: add thp_utilization metrics to debugfs (Alexander Zhu) https://lkml.kernel.org/r/20220818000112.2722201-1-alexlzhu@fb.com This patch adds debugfs file for tracking how THP is utilized well....

[PATCH] mm: vmscan: fix extreme overreclaim and swap floods (Johannes Weiner) https://lkml.kernel.org/r/20220802162811.39216-1-hannes@cmpxchg.org Johannes found proactive reclamation using memory.reclaim sometimes reclaim more pages than requested on specific cgroup use cases. This patch resolves the issue so that the proactive reclamation doesn’t over-reclaim pages. [RFC PATCH 0/4] propose a auto-run mode for ksm (Xu Xin) https://lkml.kernel.org/r/20220803100306.1653382-1-xu.xin16@zte.con.cn KSM operation management is quite manual and sometimes inefficient if not well managed. This patchset introduces auto-run mode that can operate KSM in a better way....