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2d55a63709
The bulk of the loop in bch2_fiemap() involves processing the current extent key from the iter, including following indirections and trimming the extent size and such. This patch makes a few changes to reduce the size of the loop and facilitate future changes to support delalloc extents. Define a new bch_fiemap_extent structure to wrap the bkey buffer that holds the extent key to report to userspace along with associated fiemap flags. Update bch2_fill_extent() to take the bch_fiemap_extent as a param instead of the individual fields. Finally, lift the bulk of the extent processing into a bch2_fiemap_extent() helper that takes the current key and formats the bch_fiemap_extent appropriately for the fill function. No functional changes intended by this patch. Signed-off-by: Brian Foster <bfoster@redhat.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 reStructuredText 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.