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823ca26a8f
xfs: fix handling of AG[IF] header buffers during scrub While reading through the online fsck code, I noticed that the setup code for AG metadata scrubs will attach the AGI, the AGF, and the AGFL buffers to the transaction. It isn't necessary to hold the AGFL buffer, since any code that wants to do anything with the AGFL will need to hold the AGF to know which parts of the AGFL are active. Therefore, we only need to hold the AGFL when scrubbing the AGFL itself. The second bug fixed by this patchset is one that I observed while testing online repair. When a buffer is held across a transaction roll, its buffer log item will be detached if the bli was clean before the roll. If we are holding the AG headers to maintain a lock on an AG, we then need to set the buffer type on the new bli to avoid confusing the logging code later. There's also a bug fix for uninitialized memory in the directory scanner that didn't fit anywhere else. Ths patchset finishes off by teaching the AGFL repair function to look for and discard crosslinked blocks instead of putting them back on the AGFL. v23.2: Log the buffers before rolling the transaction to keep the moving forward in the log and avoid the bli falling off. Signed-off-by: Darrick J. Wong <djwong@kernel.org> * tag 'scrub-fix-ag-header-handling-6.2_2022-11-16' of git://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux: xfs: make AGFL repair function avoid crosslinked blocks xfs: log the AGI/AGF buffers when rolling transactions during an AG repair xfs: don't track the AGFL buffer in the scrub AG context xfs: fully initialize xfs_da_args in xchk_directory_blocks
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.