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Code tagging and memory-allocation profiling [LWN.net]

☀️ Morning digest May 16

Acting President receives foreign ambassadors

Acting President receives foreign ambassadors

Davit Martirosyan, the Secretary General of

Davit Martirosyan, the Secretary General of

Concurrent page-fault handling with per-VMA locks [LWN.net]

The kernel is, in many ways, a marvel of scalability, but there is a longstanding pain point in the memory-management subsystem that has resisted all attempts at elimination: the mmap lock. This lock was inevitably a topic at the 2022 Linux Storage, Filesystem, Memory-Management and BPF Summit (LSFMM), where the idea of using per-VMA locks was raised. Suren Baghdasaryan has posted an implementation of that idea but with an interesting twist on how those locks are implemented.

A framework for code tagging [LWN.net]

Kernel code can, at times, be quite inward looking; it often refers to itself. To enable this introspection, the kernel has evolved several mechanisms for identifying specific locations in the code and carrying out actions related to those locations. The code-tagging framework patch set, posted by Suren Baghdasaryan and Kent Overstreet, is an attempt to replace various ad hoc implementations with a single framework, and to add some new applications as well.

Azerbaijan Escalates its Aggression against Armenians

While the world's attention is fixated on the Russian invasion of Ukraine, Azerbaijan has escalated its aggression against the Armenian land and people of Artsakh

Mayor of Artsakh's Nakhichevanik: Villagers could not pull out tractor damaged by adversary shooting