From f1ecbc21eb097ecf0b73793c44b0197584db9e2c Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 18 Aug 2017 17:12:52 +1000 Subject: [PATCH] SUNRPC: remove some dead code. RPC_TASK_NO_RETRANS_TIMEOUT is set when cl_noretranstimeo is set, which happens when RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT is set, which happens when NFS_CS_NO_RETRANS_TIMEOUT is set. This flag means "don't resend on a timeout, only resend if the connection gets broken for some reason". cl_discrtry is set when RPC_CLNT_CREATE_DISCRTRY is set, which happens when NFS_CS_DISCRTRY is set. This flag means "always disconnect before resending". NFS_CS_NO_RETRANS_TIMEOUT and NFS_CS_DISCRTRY are both only set in nfs4_init_client(), and it always sets both. So we will never have a situation where only one of the flags is set. So this code, which tests if timeout retransmits are allowed, and disconnection is required, will never run. So it makes sense to remove this code as it cannot be tested and could confuse people reading the code (like me). (alternately we could leave it there with a comment saying it is never actually used). Signed-off-by: NeilBrown Signed-off-by: Trond Myklebust --- net/sunrpc/clnt.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 69a9e5953744..2ad827db2704 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2147,10 +2147,6 @@ call_status(struct rpc_task *task) rpc_delay(task, 3*HZ); case -ETIMEDOUT: task->tk_action = call_timeout; - if (!(task->tk_flags & RPC_TASK_NO_RETRANS_TIMEOUT) - && task->tk_client->cl_discrtry) - xprt_conditional_disconnect(req->rq_xprt, - req->rq_connect_cookie); break; case -ECONNREFUSED: case -ECONNRESET: -- 2.20.1