*** linux-4.9.60/fs/nfsd/nfs4state.c.org	2017-11-09 09:49:11.071026183 +0900
--- linux-4.9.60/fs/nfsd/nfs4state.c	2017-11-09 09:51:36.370697280 +0900
***************
*** 4677,4683 ****
  	spin_unlock(&nn->blocked_locks_lock);
  
  	while (!list_empty(&reaplist)) {
! 		nbl = list_first_entry(&nn->blocked_locks_lru,
  					struct nfsd4_blocked_lock, nbl_lru);
  		list_del_init(&nbl->nbl_lru);
  		posix_unblock_lock(&nbl->nbl_lock);
--- 4677,4683 ----
  	spin_unlock(&nn->blocked_locks_lock);
  
  	while (!list_empty(&reaplist)) {
! 		nbl = list_first_entry(&reaplist,
  					struct nfsd4_blocked_lock, nbl_lru);
  		list_del_init(&nbl->nbl_lru);
  		posix_unblock_lock(&nbl->nbl_lock);
***************
*** 7071,7077 ****
  	spin_unlock(&nn->blocked_locks_lock);
  
  	while (!list_empty(&reaplist)) {
! 		nbl = list_first_entry(&nn->blocked_locks_lru,
  					struct nfsd4_blocked_lock, nbl_lru);
  		list_del_init(&nbl->nbl_lru);
  		posix_unblock_lock(&nbl->nbl_lock);
--- 7071,7077 ----
  	spin_unlock(&nn->blocked_locks_lock);
  
  	while (!list_empty(&reaplist)) {
! 		nbl = list_first_entry(&reaplist,
  					struct nfsd4_blocked_lock, nbl_lru);
  		list_del_init(&nbl->nbl_lru);
  		posix_unblock_lock(&nbl->nbl_lock);