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[ Upstream commit67dd23f9e6] nfs_wb_all() calls filemap_write_and_wait(), which uses filemap_check_errors() to determine the error to return. filemap_check_errors() only looks at the mapping->flags and will therefore only return either -ENOSPC or -EIO. To ensure that the correct error is returned on close(), nfs{,4}_file_flush() should call filemap_check_wb_err() which looks at the errseq value in mapping->wb_err without consuming it. Fixes:6fbda89b25("NFS: Replace custom error reporting mechanism with generic one") Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.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.