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Chandan Babu R 98e63b91cd xfs: online repair of file fork mappings [v28.3]
In this series, online repair gains the ability to rebuild data and attr
 fork mappings from the reverse mapping information.  It is at this point
 where we reintroduce the ability to reap file extents.
 
 Repair of CoW forks is a little different -- on disk, CoW staging
 extents are owned by the refcount btree and cannot be mapped back to
 individual files.  Hence we can only detect staging extents that don't
 quite look right (missing reverse mappings, shared staging extents) and
 replace them with fresh allocations.
 
 This has been running on the djcloud for months with no problems.  Enjoy!
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'repair-file-mappings-6.8_2023-12-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.8-mergeB

xfs: online repair of file fork mappings

In this series, online repair gains the ability to rebuild data and attr
fork mappings from the reverse mapping information.  It is at this point
where we reintroduce the ability to reap file extents.

Repair of CoW forks is a little different -- on disk, CoW staging
extents are owned by the refcount btree and cannot be mapped back to
individual files.  Hence we can only detect staging extents that don't
quite look right (missing reverse mappings, shared staging extents) and
replace them with fresh allocations.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'repair-file-mappings-6.8_2023-12-15' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
  xfs: repair problems in CoW forks
  xfs: create a ranged query function for refcount btrees
  xfs: refactor repair forcing tests into a repair.c helper
  xfs: repair inode fork block mapping data structures
  xfs: reintroduce reaping of file metadata blocks to xrep_reap_extents
History 2023-12-16 08:44:55 +05:30
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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.