lkml

[PATCH 0/3 v5] Introduce a bulk order-0 page allocator (Mel Gorman) https://lkml.kernel.org/r/20210322091845.16437-1-mgorman@techsingularity.net Fifth version of the order-0 pages bulk allocator. In this version, the API users are dropped from the patchset, because the callers are not confirmed if they prefer an array or list interface. [PATCH] mm: cma: add trace events for CMA alloc perf testing (Georgi Djakov) https://lkml.kernel.org/r/20210324160740.15901-1-georgi.djakov@linaro.org This patch adds tracepoints for CMA and page migrations. Those aims to be used for performance debugging of CMA.

File THP and HWPoison (Matthew Wilcox) https://lkml.kernel.org/r/20210316140947.GA3420@casper.infradead.org THP is not splitted for file-backed pages when it got memory failure. This mail describes the problem in detail and propose some change to mitigate it. Issue with kfence and kmemleak (Luis Henriques) https://lkml.kernel.org/r/YFDf6iKH1p/jGnM0@suse.de Luis found a problem when kmemleak and kfence is used together. A fix is made by Marco. [PATCH v4 00/13] Introduced multi-preference mempolicy (Feng Tang) https://lkml.kernel.org/r/1615952410-36895-1-git-send-email-feng.tang@intel.com This is the fourth version of the patchset.

[PATCH 00/10] [v6] Migrate Pages in lieu of discard (Dave Hansen) https://lkml.kernel.org/r/20210304235949.7922C1C3@viggo.jf.intel.com When the system configured with both DRAM and persistent memory, current kernel starts reclamation when DRAM fulls even though there are some space in persistent memory. And from some point, all page allocation is done on the persistent memory only, even though DRAM has some free slots now. This patchset mitigates the problem by migrating pages that about to be reclaimed to persistent memory.

[PATCH] mm: introduce clear all vm events counters (Pintu Kumar) https://lkml.kernel.org/r/1614595766-7640-1-git-send-email-pintu@codeaurora.org Because the vmstat data is only cumulated, users should calculate the diff manually or just reboot. This commit adds a procfs file that can be used to clear all vmstat counters. [PATCH 0/5] Introduce a bulk order-0 page allocator with two in-tree users (Mel Gorman) https://lkml.kernel.org/r/20210301161200.18852-1-mgorman@techsingularity.net This patchset introduces a bulk order-0 page allocator. It also makes the sunrpc and the network page pool to use that.

[PATCH v11 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210215161349.246722-1-pasha.tatashin@soleen.com The 11th version of the patchset making ZONE_MOVABLE really movable. In this version, a build error on i386 is fixed. [RFC PATCH] mm, oom: introduce vm.sacrifice_hugepage_on_oom https://lkml.kernel.org/r/20210216030713.79101-1-eiichi.tsukata@nutanix.com This RFC patch introduces yet another sysctl knob called vm.sacrifice_hugepage_on_oom. When it is turned on, it tries to free available hugepages before waking oom-killer up. [RFC] Hugepage collapse in process context (David Rientjes) https://lkml.

[PATCH v2] mm: cma: support sysfs (Minchan Kim) https://lkml.kernel.org/r/20210208180142.2765456-1-minchan@kernel.org This patch introduces sysfs interface for CMA that shows stats including number of CMA allocation attempts and failures. [PATCH v10 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210211162427.618913-1-pasha.tatashin@soleen.com The 10th version of the patchset making ZONE_MOVABLE really movable. Linux 5.11 (Linus Torvalds) https://lkml.kernel.org/r/CAHk-=wg8LpRi9+P2_V+ehJ2_EoJifNh2QmVf47aLXfkCd-1UAQ@mail.gmail.com Nothing strange happened last week, so Linus released v5.11 as expected. The number of changes from the rc7 to this release is actually even smaller than average.

[RFC 00/20] TLB batching consolidation and enhancements (Nadav Amit) https://lkml.kernel.org/r/20210131001132.3368247-1-namit@vmware.com This patchset prepares more aggressive TLB flushing batching by consolidating a few TLB batching methods. [PATCH v9 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210201153827.444374-1-pasha.tatashin@soleen.com This patchset makes ZONE_MOVABLE really movable by prohibiting pinning of pages in the zone. Augmented Page Reclaim (Yu Zhao) https://lkml.kernel.org/r/YBkT6175GmMWBvw3@google.com This mail shares a part of decade researh/experimentation in memory overcommit at Google. The author wants to start submitting patch based on responses.

[RFC][PATCH 00/13] [v5] Migrate Pages in lieu of discard (Dave Hansen) https://lkml.kernel.org/r/20210126003411.2AC51464@viggo.jf.intel.com If a system has a small DRAM and a large persistent memory (PMEM), reclamation starts when DRAM fills up, and newer allocations will done on PMEM. This patchset makes the reclaim logic to migrate pages to PMEM instead of just discarding it. [PATCH v3 00/25] Page folios (Matthew Wilcox) https://lkml.kernel.org/r/20210128070404.1922318-1-willy@infradead.org This patchset introduces a new data structure called page folio.

[PATCH v2 00/27] Page folios (Matthew Wilcox) https://lkml.kernel.org/r/20210118170148.3126186-1-willy@infradead.org This is the second version of the page folios patchset. This introduces a new struct named folio. Functions that receive folio as an argument always receives head page, so the function don’t need to do compound_head(). [PATCH -V9 0/3] numa balancing: Migrate on fault among multiple bound nodes (Huang Ying) https://lkml.kernek.org/r/20210120061235.148637-1-ying.huang@intel.com This patch make optimization of cross-socket memory accesses for AutoNUMA in case of application is bound to multiple NUMA nodes possible.

[PATCH] mm: thp: introduce NR_PARTIAL_THPS (Bin Wang) https://lkml.kernel.org/r/20210112021208.1875-1-wangbin224@huawei.com Because partially unmapped THP is not split, the memory stat becomes confusing. This patch add another counter called NR_PARTIAL_THPS in node_stat_item to reduce such confusions. [PATCH v2 00/70] RFC mm: Introducing the Maple Tree (Liam R. Howlett) https://lkml.kernel.org/r/20210112161240.2024684-1-Liam.Howlett@Oracle.com Second RFC of the Maple tree. It is an RCU-safe B-tree that aims to be used as the vma tree with better scalability. [PATCH] mm/debug: Improve memcg debugging (Matthew Wilcox) https://lkml.