From: Dai Ngo dai.ngo@oracle.com
[ Upstream commit 691d0b782066a6eeeecbfceb7910a8f6184e6105 ]
Currently call_bind_status places a hard limit of 3 to the number of retries on EACCES error. This limit was done to prevent NLM unlock requests from being hang forever when the server keeps returning garbage. However this change causes problem for cases when NLM service takes longer than 9 seconds to register with the port mapper after a restart.
This patch removes this hard coded limit and let the RPC handles the retry based on the standard hard/soft task semantics.
Fixes: 0b760113a3a1 ("NLM: Don't hang forever on NLM unlock requests") Reported-by: Helen Chao helen.chao@oracle.com Tested-by: Helen Chao helen.chao@oracle.com Signed-off-by: Dai Ngo dai.ngo@oracle.com Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/sunrpc/sched.h | 3 +-- net/sunrpc/clnt.c | 3 --- net/sunrpc/sched.c | 1 - 3 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index b8ca3ecaf8d76..8ada7dc802d30 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -90,8 +90,7 @@ struct rpc_task { #endif unsigned char tk_priority : 2,/* Task priority */ tk_garb_retry : 2, - tk_cred_retry : 2, - tk_rebind_retry : 2; + tk_cred_retry : 2; };
typedef void (*rpc_action)(struct rpc_task *); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index fd7e1c630493e..d2ee566343083 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2050,9 +2050,6 @@ call_bind_status(struct rpc_task *task) status = -EOPNOTSUPP; break; } - if (task->tk_rebind_retry == 0) - break; - task->tk_rebind_retry--; rpc_delay(task, 3*HZ); goto retry_timeout; case -ENOBUFS: diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index be587a308e05a..c8321de341eea 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -817,7 +817,6 @@ rpc_init_task_statistics(struct rpc_task *task) /* Initialize retry counters */ task->tk_garb_retry = 2; task->tk_cred_retry = 2; - task->tk_rebind_retry = 2;
/* starting timestamp */ task->tk_start = ktime_get();