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In the tasklets (completer, responder, and requester) check the return value from rxe_get() to detect failures to get a reference. This only occurs if the qp has had its reference count drop to zero which indicates that it no longer should be used. The ref is never 0 today because the tasklets are flushed before the ref is dropped. The next patch changes this so that the ref is dropped then the tasklets are flushed. Link: https://lore.kernel.org/r/20220421014042.26985-4-rpearsonhpe@gmail.com Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.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.