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8944c6fb8a
On a system with a realtime volume and a 28k realtime extent, generic/491 fails because the test opens a file on a frozen filesystem and closing it causes xfs_release -> xfs_can_free_eofblocks to mistakenly think that the the blocks of the realtime extent beyond EOF are posteof blocks to be freed. Realtime extents cannot be partially unmapped, so this is pointless. Worse yet, this triggers posteof cleanup, which stalls on a transaction allocation, which is why the test fails. Teach the predicate to account for realtime extents properly. Reviewed-by: Dave Chinner <dchinner@redhat.com> 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 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.