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The current semantics of xfs_defer_finish() require the caller to call xfs_defer_cancel() on error. This is slightly inconsistent with transaction commit error handling where a failed commit cleans up the transaction before returning. More significantly, the only requirement for exposure of ->dop_pending outside of xfs_defer_finish() is so that xfs_defer_cancel() can drain it on error. Since the only recourse of xfs_defer_finish() errors is cancellation, mirror the transaction logic and cancel remaining dfops before returning from xfs_defer_finish() with an error. Beside simplifying xfs_defer_finish() semantics, this ensures that xfs_defer_finish() always returns with an empty ->dop_pending and thus facilitates removal of the list from xfs_defer_ops. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.