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Revision tags: v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46 |
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| #
d56b699d |
| 14-Aug-2023 |
Bjorn Helgaas <bhelgaas@google.com> |
Documentation: Fix typos
Fix typos in Documentation.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org
Signed-off-by: Jon
Documentation: Fix typos
Fix typos in Documentation.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Revision tags: v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24 |
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03786f0a |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document future directions of online fsck
Add the seventh and final chapter of the online fsck documentation,
where we talk about future functionality that can tie in with the
functionality pro
xfs: document future directions of online fsck
Add the seventh and final chapter of the online fsck documentation,
where we talk about future functionality that can tie in with the
functionality provided by the online fsck patchset.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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af051dfb |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the userspace fsck driver program
Add the sixth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by the
driver p
xfs: document the userspace fsck driver program
Add the sixth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by the
driver program xfs_scrub.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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a26aa252 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document directory tree repairs
Directory tree repairs are the least complete part of online fsck, due
to the lack of directory parent pointers. However, even without that
feature, we can stil
xfs: document directory tree repairs
Directory tree repairs are the least complete part of online fsck, due
to the lack of directory parent pointers. However, even without that
feature, we can still make some corrections to the directory tree -- we
can salvage as many directory entries as we can from a damaged
directory, and we can reattach orphaned inodes to the lost+found, just
as xfs_repair does now.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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2f754f7f |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document metadata file repair
File-based metadata (such as xattrs and directories) can be extremely
large. To reduce the memory requirements and maximize code reuse, it is
very convenient to c
xfs: document metadata file repair
File-based metadata (such as xattrs and directories) can be extremely
large. To reduce the memory requirements and maximize code reuse, it is
very convenient to create a temporary file, use the regular dir/attr
code to store salvaged information, and then atomically swap the extents
between the file being repaired and the temporary file. Record the high
level concepts behind how temporary files and atomic content swapping
should work, and then present some case studies of what the actual
repair functions do.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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a0d856ee |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document full filesystem scans for online fsck
Certain parts of the online fsck code need to scan every file in the
entire filesystem. It is not acceptable to block the entire filesystem
while
xfs: document full filesystem scans for online fsck
Certain parts of the online fsck code need to scan every file in the
entire filesystem. It is not acceptable to block the entire filesystem
while this happens, which means that we need to be clever in allowing
scans to coordinate with ongoing filesystem updates. We also need to
hook the filesystem so that regular updates propagate to the staging
records.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
d6978871 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document online file metadata repair code
Add to the fifth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by the
kernel
xfs: document online file metadata repair code
Add to the fifth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by the
kernel to repair file metadata.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
7fb8ccff |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document btree bulk loading
Add a discussion of the btree bulk loading code, which makes it easy to
take an in-memory recordset and write it out to disk in an efficient
manner. This also enabl
xfs: document btree bulk loading
Add a discussion of the btree bulk loading code, which makes it easy to
take an in-memory recordset and write it out to disk in an efficient
manner. This also enables atomic switchover from the old to the new
structure with minimal potential for leaking the old blocks.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
5f658dad |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document pageable kernel memory
Add a discussion of pageable kernel memory, since online fsck needs
quite a bit more memory than most other parts of the filesystem to stage
records and other in
xfs: document pageable kernel memory
Add a discussion of pageable kernel memory, since online fsck needs
quite a bit more memory than most other parts of the filesystem to stage
records and other information.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
bae43864 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document how online fsck deals with eventual consistency
Writes to an XFS filesystem employ an eventual consistency update model
to break up complex multistep metadata updates into small chaine
xfs: document how online fsck deals with eventual consistency
Writes to an XFS filesystem employ an eventual consistency update model
to break up complex multistep metadata updates into small chained
transactions. This is generally good for performance and scalability
because XFS doesn't need to prepare for enormous transactions, but it
also means that online fsck must be careful not to attempt a fsck action
unless it can be shown that there are no other threads processing a
transaction chain. This part of the design documentation covers the
thinking behind the consistency model and how scrub deals with it.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
e5edad52 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the filesystem metadata checking strategy
Begin the fifth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by th
xfs: document the filesystem metadata checking strategy
Begin the fifth chapter of the online fsck design documentation, where
we discuss the details of the data structures and algorithms used by the
kernel to examine filesystem metadata and cross-reference it around the
filesystem.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
4f7f6469 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the user interface for online fsck
Start the fourth chapter of the online fsck design documentation, which
discusses the user interface and the background scrubbing service.
Signed-of
xfs: document the user interface for online fsck
Start the fourth chapter of the online fsck design documentation, which
discusses the user interface and the background scrubbing service.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
9a30b5b5 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the testing plan for online fsck
Start the third chapter of the online fsck design documentation. This
covers the testing plan to make sure that both online and offline fsck
can detec
xfs: document the testing plan for online fsck
Start the third chapter of the online fsck design documentation. This
covers the testing plan to make sure that both online and offline fsck
can detect arbitrary problems and correct them without making things
worse.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
88757e04 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the general theory underlying online fsck design
Start the second chapter of the online fsck design documentation.
This covers the general theory underlying how online fsck works.
Sig
xfs: document the general theory underlying online fsck design
Start the second chapter of the online fsck design documentation.
This covers the general theory underlying how online fsck works.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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| #
a8f6c2e5 |
| 11-Apr-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: document the motivation for online fsck design
Start the first chapter of the online fsck design documentation.
This covers the motivations for creating this in the first place.
Signed-off-by:
xfs: document the motivation for online fsck design
Start the first chapter of the online fsck design documentation.
This covers the motivations for creating this in the first place.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
show more ...
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