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SUNRPC: Introduce transport switch callout for pluggable rpcbind
Introduce a clean transport switch API for plugging in different types of rpcbind mechanisms. For instance, rpcbind can cleanly replace the existing portmapper client, or a transport can choose to implement RPC binding any way it likes. Test plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked. Probably need to rig a server where certain services aren't running, or that returns an error for some typical operation. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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5 changed files with 7 additions and 5 deletions
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@ -106,7 +106,7 @@ struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
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int rpc_shutdown_client(struct rpc_clnt *);
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int rpc_destroy_client(struct rpc_clnt *);
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void rpc_release_client(struct rpc_clnt *);
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void rpc_getport(struct rpc_task *, struct rpc_clnt *);
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void rpc_getport(struct rpc_task *);
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int rpc_register(u32, u32, int, unsigned short, int *);
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void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
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@ -105,6 +105,7 @@ struct rpc_xprt_ops {
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void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize);
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int (*reserve_xprt)(struct rpc_task *task);
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void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task);
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void (*rpcbind)(struct rpc_task *task);
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void (*set_port)(struct rpc_xprt *xprt, unsigned short port);
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void (*connect)(struct rpc_task *task);
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void * (*buf_alloc)(struct rpc_task *task, size_t size);
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