acd9f2dd23
Avoid FastReg operations getting MW_BIND_ERR after a reconnect.
rpcrdma_reqs_reset() is called on transport tear-down to get each
rpcrdma_req back into a clean state.
MRs on req->rl_registered are waiting for a FastReg, are already
registered, or are waiting for invalidation. If the transport is
being torn down when reqs_reset() is called, the matching LocalInv
might never be posted. That leaves these MR registered /and/ on
req->rl_free_mrs, where they can be re-used for the next
connection.
Since xprtrdma does not keep specific track of the MR state, it's
not possible to know what state these MRs are in, so the only safe
thing to do is release them immediately.
Fixes: 5de55ce951a1 ("xprtrdma: Release in-flight MRs on disconnect")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.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 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.