d401727ea0
Create an internal-only type matching the current devtmpfs, never register it and have one kernel-internal mount done. That thing gets mounted only once, so it is free to use mount_nodev(). The "public" devtmpfs (the one we do register, and only after the internal mount of the real thing is done) simply gets and returns an extra reference to the internal superblock. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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.