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Linux: Kernel Live-Patching, Encryption Support in Btrfs, LF Networking Fund (LFN) and Nouveau

Submitted by Roy Schestowitz on Thursday 10th of January 2019 12:54:01 AM Filed under
Graphics/Benchmarks
Linux
  • Linux Kernel Live-Patching Continues Work On Atomic Replace & Cumulative Patches

    Not making it for the Linux 5.0 kernel but continuing to be revised is atomic replace functionality for the livepatching code. The Linux livepatch atomic replace feature allows for cumulative patches and the ability to remove a patch lower in the stack / patch series.

    Petr Mladek on Wednesday sent out the fifteenth version of these patches implementing atomic replace within the kernel's common livepatch code. This livepatch functionality was worked on in part by Akamai and motivated to offer the ability to revert a previously applied livepatch.

  • Another Attempt At Adding Encryption Support To Btrfs

    While the Btrfs file-system supports many next-gen features from SSD optimizations to transparent file-system compression to snapshots, it hasn't natively offered any encryption support. There have been Btrfs encryption attempts in the past, but nothing that has panned out in mainline short of running Btrfs atop dm-crypt. A new patch series was published overnight having another go at adding AES encryption to Btrfs.

    Mark Harmstone, the developer who has been maintaining "WinBtrfs" as Btrfs support for Windows, sent out a set of 19 patches that would add basic AES encryption support to Btrfs. These patches do not build atop fscrypt, which is how EXT4 and F2FS have offered up their encryption capabilities, but rather is its own implementation.

  • Wipro Joins Linux Foundation Networking (LFN) As Gold Member

    The LF Networking  Fund (LFN), which facilitates collaboration and operational excellence across open networking projects, continues its membership growth and deepens its global presence with the addition of new Gold member  Wipro Limited, a leading global information technology, consulting and business process services company. Wipro Limited joins LFN to support the development of next-generation Open Networking Automation Platform (ONAP) technologies and use cases for current and future networks.

    Wipro Limited joins six other LFN Gold members, including Accenture, Aptira, Inocybe Technologies, Lumina Networks, Microsoft and Telstra. A full list of LFN members by category is available at https://www.lfnetworking.org/members/.

    K.R. Sanjiv, Chief Technology Officer, Wipro Limited, said, “Today, open source has become the preferred computing model for communications, artificial intelligence and analytics-driven technology solutions to facilitate innovation, cost efficiency and greater industry collaboration. Given Wipro’s focus on and investments in 5G, analytics and the Wipro HOLMESTM artificial intelligence platform, we believe ONAP is the right platform for us to leverage, for network management, automation and orchestration. We are committed to bringing best-of-breed open source-based solutions to the market and are excited to be a part of ONAP and LF Networking.”

  • SPIR-V Clover Support Might Still Land For Mesa 19.0, Working Towards Nouveau OpenCL

    One of the major open-source GPU compute driver initiatives going the past year has been the Red Hat folks working on adding Nouveau SPIR-V support as part of allowing GPU compute to work for this open-source NVIDIA driver. By longtime Nouveau contributor Pierre Moreau has also been work on adding SPIR-V support to Clover, the Gallium3D OpenCL state tracker.

    The Nouveau developer has been adding SPIR-V support to Clover so that this OpenCL state tracker can accept this Khronos intermediate representation as a valid input. The work also allows converting this SPIR-V to LLVM IR so that it can be consumed by Gallium3D drivers already leveraging LLVM IR.

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