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3762113b59
Superblock counter updates are tracked via per-transaction counters in the xfs_trans object. These changes are then turned into dirty log items in xfs_trans_apply_sb_deltas just prior to commiting the log items to the CIL. However, updating the per-transaction counter deltas do not cause XFS_TRANS_DIRTY to be set on the transaction. In other words, a pure sb counter update will be silently discarded if there are no other dirty log items attached to the transaction. This is currently not the case anywhere in the filesystem because sb counter updates always dirty at least one other metadata item, but let's not leave a logic bomb. 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.