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82011c80b3
Currently, XPT_BUSY is not cleared until xpo_recvfrom returns. That effectively blocks the receipt and handling of the next RPC message until the current one has been taken off the transport. This strict ordering is a requirement for socket transports. For our kernel RPC/RDMA transport implementation, however, dequeuing an ingress message is nothing more than a list_del(). The transport can safely be marked un-busy as soon as that is done. To keep the changes simpler, this patch just moves the svc_xprt_received() call site from svc_handle_xprt() into the transports, so that the actual optimization can be done in a subsequent patch. Signed-off-by: Chuck Lever <chuck.lever@oracle.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.