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ce7a7eed77
There are behavioural requirements on the seq_file next() function in terms of how it updates *pos at end-of-file, and these are now enforced by a warning. I was recently attempting to justify the reason this was needed, and couldn't remember the details, and didn't find them in the documentation. So I re-read the code until I understood it again, and updated the documentation to match. I also enhanced the text about SEQ_START_TOKEN as it seemed potentially misleading. Cc: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: NeilBrown <neilb@suse.de> Link: https://lore.kernel.org/r/87eemqiazh.fsf@notabene.neil.brown.name Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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.