pNFS: Fix a typo in pnfs_update_layout

Trond Myklebust · Trond Myklebust · commit 400417b05f3e · 2019-03-12T16:04:51.000-04:00
We're supposed to wait for the outstanding layout count to go to zero, but that got lost somehow. Fixes: d03360a ("pNFS: Ensure we return the error if someone...") Reported-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
@@ -1889,7 +1889,7 @@ pnfs_update_layout(struct inode *ino,
 	    atomic_read(&lo->plh_outstanding) != 0) {
 		spin_unlock(&ino->i_lock);
 		lseg = ERR_PTR(wait_var_event_killable(&lo->plh_outstanding,
-					atomic_read(&lo->plh_outstanding)));
+					!atomic_read(&lo->plh_outstanding)));
 		if (IS_ERR(lseg) || !list_empty(&lo->plh_segs))
 			goto out_put_layout_hdr;
 		pnfs_put_layout_hdr(lo);
