pNFS: Fix race in pnfs_wait_on_layoutreturn
authorTrond Myklebust <trond.myklebust@primarydata.com>
Fri, 18 Nov 2016 20:21:30 +0000 (15:21 -0500)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Thu, 1 Dec 2016 22:21:41 +0000 (17:21 -0500)
commitee284e35d8c71bf5d4d807eaff6f67a17134b359
tree3b43c2db64a8fc0745de0085f48498cad438a2a1
parent6604b203fb6394ed1f24c21bfa3c207e5ae8e461
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>
fs/nfs/pnfs.c