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1a633bdc8f
In some situations a sent packet may get queued in the NIC longer than than timeout of a ULP. Currently if this happens the ULP may try to reset the link by destroying the qp and setting up an alternate connection but will fail because the rxe driver is waiting for the packet to finish getting sent and be returned to the skb destructor function where the qp reference holding things up will be dropped. This patch modifies the way that the qp is passed to the destructor to pass the qp index and not a qp pointer. Then the destructor will attempt to lookup the qp from its index and if it fails exit early. This requires taking a reference on the struct sock rather than the qp allowing the qp to be destroyed while the sk is still around waiting for the packet to finish. Link: https://lore.kernel.org/r/20240329145513.35381-15-rpearsonhpe@gmail.com Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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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 reStructuredText 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.