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Monday, July 19th, 2021

    Time Event
    12:36a
    Kernel prepatch 5.14-rc2
    The 5.14-rc2 kernel prepatch is out for testing. Linus says:

    At least in pure number of commits, this is the biggest rc2 we've had during the 5.x cycle. Whether that is meaningful or not, who knows - it might be just random timing effects, or it might indicate that this release is not going to be one of those nice and calm ones. We'll just have to wait and see.

    In total, 421 non-merge changesets were pulled into the mainline between -rc1 and -rc2.

    3:01p
    Security updates for Monday
    Security updates have been issued by Arch Linux (chromium, firefox, mbedtls, nextcloud, python-pillow, ruby, ruby2.6, ruby2.7, systemd, thunderbird, varnish, and vivaldi), Debian (thunderbird), Fedora (chromium, firefox, and linux-firmware), Gentoo (apache, commons-fileupload, dovecot, and mediawiki), openSUSE (firefox, fossil, go1.16, and icinga2), Oracle (firefox, kernel, and kernel-container), Red Hat (nettle), and SUSE (firefox and go1.16).
    3:07p
    Stable kernel updates
    Stable kernels 5.13.3, 5.12.18, 5.10.51, and 5.4.133 have been released. They all contain
    important fixes and users should upgrade.
    3:33p
    A GPIO driver in Rust
    As an example of what a "real" device driver in Rust would look like,
    Wedson Almeida Filho has posted
    a translation     of the PL061 GPIO driver alongside the original. For
    ease of reading, the resulting HTML has been reformatted a bit and placed
    below; viewing in a wide window is recommended.
    3:59p
    [$] Descriptorless files for io_uring
    The lowly file descriptor is one of the fundamental objects in Linux
    systems. A file descriptor, which is a simple integer value, can refer to an
    open file — or to a network connection, a running process, a loaded BPF
    program, or a namespace.
    Over the years, the use of file descriptors to refer to transient objects
    has grown to the point that it can be difficult to justify an API that
    uses anything else. Interestingly, though, the io_uring subsystem looks as if it is moving
    toward its own number space separate from file descriptors.

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