SUNRPC: setup rpcbind clients if service requires it
New function ("svc_uses_rpcbind") will be used to detect, that new service will send portmapper register calls. For such services we will create rpcbind clients and remove all stale portmap registrations. Also, svc_rpcb_cleanup() will be set as sv_shutdown callback for such services in case of this field wasn't initialized earlier. This will allow to destroy rpcbind clients when no other users of them left. Note: Currently, any creating service will be detected as portmap user. Probably, this is wrong. But now it depends on program versions "vs_hidden" flag. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -454,8 +454,15 @@ __svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
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spin_lock_init(&pool->sp_lock);
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}
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/* Remove any stale portmap registrations */
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svc_unregister(serv);
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if (svc_uses_rpcbind(serv)) {
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if (svc_rpcb_setup(serv) < 0) {
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kfree(serv->sv_pools);
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kfree(serv);
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return NULL;
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}
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if (!serv->sv_shutdown)
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serv->sv_shutdown = svc_rpcb_cleanup;
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}
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return serv;
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}
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