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When the client gets back a short DIO write, it will then attempt to issue another write to finish the DIO request. If that write then fails (as is often the case in an -ENOSPC situation), then we still may need to issue a COMMIT if the earlier short write was unstable. If that COMMIT then succeeds, then we don't want the client to reschedule the write requests, and to instead just return a short write. Otherwise, we can end up looping over the same DIO write forever. Always consult dreq->error after a successful RPC, even when the flag state is not NFS_ODIRECT_DONE. Link: https://bugzilla.redhat.com/show_bug.cgi?id=2028370 Reported-by: Boyang Xue <bxue@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.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.