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SUNRPC: Retry bad rpcbind replies 

When a server returns a bad rpcbind reply, make rpcbind client recovery logic
retry with an older protocol version.  Older versions are more likely to work
correctly.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2007-09-11 18:00:36 -04:00 committed by Trond Myklebust
parent e65fe3976f
commit 4784cb51a3
1 changed files with 4 additions and 0 deletions
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4
net/sunrpc/rpcb_clnt.c
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@ -446,6 +446,10 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
struct rpc_xprt *xprt = map->r_xprt;
int status = child->tk_status;
/* Garbage reply: retry with a lesser rpcbind version */
if (status == -EIO)
status = -EPROTONOSUPPORT;
/* rpcbind server doesn't support this rpcbind protocol version */
if (status == -EPROTONOSUPPORT)
xprt->bind_index++;