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a07b455762
Teach the online directory repair code to scan the filesystem so that we can set the dotdot entry when we're rebuilding a directory. This involves dropping ILOCK on the directory that we're repairing, which means that the VFS can sneak in and tell us to update dotdot at any time. Deal with these races by using a dirent hook to absorb dotdot updates, and be careful not to check the scan results until after we've retaken the ILOCK. 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.