tree d2371db6572e8a2a5478c364f7727a5b0e19a257
parent c2d4a986f979d4004be7f5a3460bc0f0b8f41c02
author Chuck Lever <chuck.lever@oracle.com> 1578070337 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1579286747 +0100

xprtrdma: Fix completion wait during device removal

commit 13cb886c591f341a8759f175292ddf978ef903a1 upstream.

I've found that on occasion, "rmmod <dev>" will hang while if an NFS
is under load.

Ensure that ri_remove_done is initialized only just before the
transport is woken up to force a close. This avoids the completion
possibly getting initialized again while the CM event handler is
waiting for a wake-up.

Fixes: bebd031866ca ("xprtrdma: Support unplugging an HCA from under an NFS mount")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>