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Currently each of the three tasklets requester, completer and responder in the rxe driver take and release a reference to the qp argument at the beginning and end of the subroutines. The caller passing in the qp argument should be responsible for holding a reference to qp so these are not required. Further doing so breaks the qp cleanup code in rxe_qp_do_cleanup which calls these routines after all the references have been dropped so they cannot drain the packet and work request queues as intended. In fact if these routines are deferred by calling tasklet_schedule there is no guarantee that the calling code does have a qp reference. That is a bug in rxe_task.c which will be fixed later in this series. Link: https://lore.kernel.org/r/20230304174533.11296-6-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.