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Learn to take a pre-opened file-descriptor for vector IO. Instead of teaching the driver to open a FD in multiple ways, it can rely on management layer to do it on its behalf. For example, this allows inheriting a preconfigured device fd or a simple socketpair() setup, without further arguments, privileges or system access by UML. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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 Restructured Text 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.