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5b08bd4085
For users that hold a reference to a pidfd procfs might not even be available nor is it desirable to parse through procfs just for the sake of getting namespace file descriptors for a process. Make it possible to directly retrieve namespace file descriptors from a pidfd. Pidfds already can be used with setns() to change a set of namespaces atomically. Link: https://lore.kernel.org/r/20240627-work-pidfs-v1-4-7e9ab6cc3bb1@kernel.org Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.