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* [PATCH] SUNRPC: task should be exit if encode return EKEYEXPIRED more times
@ 2019-04-29  9:32 ZhangXiaoxu
  2019-05-04  6:15 ` zhangxiaoxu (A)
  0 siblings, 1 reply; 4+ messages in thread
From: ZhangXiaoxu @ 2019-04-29  9:32 UTC (permalink / raw)
  To: trond.myklebust, anna.schumaker, bfields, jlayton, davem,
	linux-nfs, zhangxiaoxu5

If the rpc.gssd always return cred success, but now the cred is
expired, then the task will loop in call_refresh and call_transmit.

Exit the rpc task after retry.

Signed-off-by: ZhangXiaoxu <zhangxiaoxu5@huawei.com>
---
 net/sunrpc/clnt.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 8ff11dc..a32d3f1 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1793,7 +1793,14 @@ call_encode(struct rpc_task *task)
 			rpc_delay(task, HZ >> 4);
 			break;
 		case -EKEYEXPIRED:
-			task->tk_action = call_refresh;
+			if (!task->tk_cred_retry) {
+				rpc_exit(task, task->tk_status);
+			} else {
+				task->tk_action = call_refresh;
+				task->tk_cred_retry--;
+				dprintk("RPC: %5u %s: retry refresh creds\n",
+					task->tk_pid, __func__);
+			}
 			break;
 		default:
 			rpc_exit(task, task->tk_status);
-- 
2.7.4


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2019-04-29  9:32 [PATCH] SUNRPC: task should be exit if encode return EKEYEXPIRED more times ZhangXiaoxu
2019-05-04  6:15 ` zhangxiaoxu (A)
2019-05-13  1:48   ` zhangxiaoxu (A)
2019-05-20 17:59     ` Schumaker, Anna

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