e27a1369a9
Any inode on a reflink filesystem can have a cow fork, even if the inode does not have the reflink iflag set. This happens either because the inode once had the iflag set but does not now, because we don't free the incore cow fork until the icache deletes the inode; or because we're running in alwayscow mode. Either way, we can collapse both of the xfs_is_reflink_inode calls into one, and change it to xfs_has_reflink, now that the bmap checker will return ENOENT if there is no pointer to the incore fork. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@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.