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[ Upstream commit9b46418c40] After the copy operation completes the cache is not up-to-date. Truncate all pages in the interval that has successfully been copied. Truncating completely copied dirty pages is okay, since the data has been overwritten anyway. Truncating partially copied dirty pages is not okay; add a comment for now. Fixes:88bc7d5097("fuse: add support for copy_file_range()") Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.