tree 1c0af7194ead73825a71846eba311f0489a29b06
parent 9ff01193a20d391e8dbce4403dd5ef87c7eaaca6
author Trond Myklebust <trond.myklebust@hammerspace.com> 1542676305 -0500
committer Trond Myklebust <trond.myklebust@hammerspace.com> 1542676305 -0500

NFSv4: Fix a NFSv4 state manager deadlock

Fix a deadlock whereby the NFSv4 state manager can get stuck in the
delegation return code, waiting for a layout return to complete in
another thread. If the server reboots before that other thread
completes, then we need to be able to start a second state
manager thread in order to perform recovery.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>