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abf7c8194f
This is the second part of correcting XFS to reload the incore unlinked inode list from the ondisk contents. Whereas part one tackled failures from regular filesystem calls, this part takes on the problem of needing to reload the entire incore unlinked inode list on account of somebody loading an inode that's in the /middle/ of an unlinked list. This happens during quotacheck, bulkstat, or even opening a file by handle. In this case we don't know the length of the list that we're reloading, so we don't want to create a new unbounded memory load while holding resources locked. Instead, we'll target UNTRUSTED iget calls to reload the entire bucket. Note that this changes the definition of the incore unlinked inode list slightly -- i_prev_unlinked == 0 now means "not on the incore list". This has been lightly tested with fstests. Enjoy! Signed-off-by: Darrick J. Wong <djwong@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQ2qTKExjcn+O1o2YRKO3ySh0YRpgUCZQChOQAKCRBKO3ySh0YR ptU6AP48lONiOPzWvF1mXTnDosAtIDsfliMY+qVgVxrghqBFmwEAitHlOadpWonu yoQ3cnSqzfA4rKT5MQZCm2iIHH/LMgU= =Kp5V -----END PGP SIGNATURE----- Merge tag 'fix-iunlink-list-6.6_2023-09-12' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.6-fixesA xfs: reload entire iunlink lists This is the second part of correcting XFS to reload the incore unlinked inode list from the ondisk contents. Whereas part one tackled failures from regular filesystem calls, this part takes on the problem of needing to reload the entire incore unlinked inode list on account of somebody loading an inode that's in the /middle/ of an unlinked list. This happens during quotacheck, bulkstat, or even opening a file by handle. In this case we don't know the length of the list that we're reloading, so we don't want to create a new unbounded memory load while holding resources locked. Instead, we'll target UNTRUSTED iget calls to reload the entire bucket. Note that this changes the definition of the incore unlinked inode list slightly -- i_prev_unlinked == 0 now means "not on the incore list". Signed-off-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org> * tag 'fix-iunlink-list-6.6_2023-09-12' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux: xfs: make inode unlinked bucket recovery work with quotacheck xfs: reload entire unlinked bucket lists xfs: use i_prev_unlinked to distinguish inodes that are not on the unlinked list |
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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.