tree 3b43c2db64a8fc0745de0085f48498cad438a2a1
parent 6604b203fb6394ed1f24c21bfa3c207e5ae8e461
author Trond Myklebust <trond.myklebust@primarydata.com> 1479500490 -0500
committer Trond Myklebust <trond.myklebust@primarydata.com> 1480630901 -0500

pNFS: Fix race in pnfs_wait_on_layoutreturn

We must put the task to sleep while holding the inode->i_lock in order
to ensure atomicity with the test for NFS_LAYOUT_RETURN.

Fixes: 500d701f336b ("NFS41: make close wait for layoutreturn")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>