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aa5d0ba0b5
Now that we've reworked xfs_reflink_remap_extent to remap only one extent per transaction, we actually know if the extent being removed is an allocated mapping. This means that we now know ahead of time if we're going to be touching the data fork. Since we only need blocks for a bmbt split if we're going to update the data fork, we only need to get quota reservation if we know we're going to touch the data fork. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-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 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.