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75ef2c59bc
In sysfs, files can only output at most PAGE_SIZE. This is a problem for debug info that needs to list an arbitrary number of times, and because of this limit some of our debug info has been terser and harder to read than we'd like. This patch moves info about journal pins and cached btree nodes to debugfs, and greatly expands and improves the output we return. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
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.