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[ Upstream commit2067b2b3f4] Fix the service handler function for the CB.ProbeUuid RPC call so that it replies in the correct manner - that is an empty reply for success and an abort of 1 for failure. Putting 0 or 1 in an integer in the body of the reply should result in the fileserver throwing an RX_PROTOCOL_ERROR abort and discarding its record of the client; older servers, however, don't necessarily check that all the data got consumed, and so might incorrectly think that they got a positive response and associate the client with the wrong host record. If the client is incorrectly associated, this will result in callbacks intended for a different client being delivered to this one and then, when the other client connects and responds positively, all of the callback promises meant for the client that issued the improper response will be lost and it won't receive any further change notifications. Fixes:9396d496d7("afs: support the CB.ProbeUuid RPC op") Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeffrey Altman <jaltman@auristor.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.