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If SMC client and server connections are both established at the same time, smc_connect_ism() cannot send a CLC confirm message while smc_listen_work() is waiting for one due to lock contention. This can result in timeouts in smc_clc_wait_msg() and failed SMC connections. In case of SMC-D, the LGR pending lock is not needed while smc_listen_work() is waiting for the CLC confirm message. So, this patch releases the lock earlier for SMC-D to avoid the locking issue. Signed-off-by: Hans Wippel <hwippel@linux.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.