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629fdaf5f5
Build on the code that was recently added to the temporary repair file code so that we can atomically switch the contents of any file fork, even if the fork is in local format. The upcoming functions to repair xattrs, directories, and symlinks will need that capability. Repair can lock out access to these user files by holding IOLOCK_EXCL on these user files. Therefore, it is safe to drop the ILOCK of both the file being repaired and the tempfile being used for staging, and cancel the scrub transaction. We do this so that we can reuse the resource estimation and transaction allocation functions used by a regular file exchange operation. 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.