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b57283e1a0
xfs_swap_extent_rmap does not use log items to track the overall progress of an attempt to swap the extent mappings between two files. If the system crashes in the middle of swapping a partially written realtime extent, the mapping will be left in an inconsistent state wherein a file can point to multiple extents on the rt volume. The new file range exchange functionality handles this correctly, so all callers must upgrade to that. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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.