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38384569a2
In the last patch, we changed the rmapbt code to remove the UNWRITTEN bit when creating an rmapbt key from an rmapbt record, and we changed the rmapbt key comparison code to start considering the ATTR and BMBT flags during lookup. This brought the behavior of the rmapbt implementation in line with its specification. However, there may exist filesystems that have the unwritten bit still set in the rmapbt keys. We should detect these situations and flag the rmapbt as one that would benefit from optimization. Eventually, online repair will be able to do something in response to this. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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.