79b54d9bfc
Currently the XFS logging code uses the xfs_buf structure and associated APIs to write the log buffers to disk. This requires various special cases in the log code and is generally not very optimal. Instead of using a buffer just allocate a kmem_alloc_larger region for each log buffer, and use a bio and bio_vec array embedded in the iclog structure to write the buffer to disk. This also allows for using the bio split and chaining case to deal with the case of a log buffer wrapping around the end of the log. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> [darrick: don't split if/else with an #endif] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.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.