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commit 0e08fa789d39aa01923e3ba144bd808291895c3c upstream. We were returning -EOPNOTSUPP for various remap_file_range cases but for some of these the copy_file_range_syscall() requires -EINVAL to be returned (e.g. where source and target file ranges overlap when source and target are the same file). This fixes xfstest generic/157 which was expecting EINVAL for that (and also e.g. for when the src offset is beyond end of file). Cc: stable@vger.kernel.org Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.