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74 lines
2.1 KiB
74 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* RPC client multipathing definitions |
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* |
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* Copyright (c) 2015, 2016, Primary Data, Inc. All rights reserved. |
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* |
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* Trond Myklebust <[email protected]> |
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*/ |
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#ifndef _NET_SUNRPC_XPRTMULTIPATH_H |
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#define _NET_SUNRPC_XPRTMULTIPATH_H |
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struct rpc_xprt_iter_ops; |
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struct rpc_xprt_switch { |
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spinlock_t xps_lock; |
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struct kref xps_kref; |
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unsigned int xps_nxprts; |
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unsigned int xps_nactive; |
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atomic_long_t xps_queuelen; |
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struct list_head xps_xprt_list; |
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struct net * xps_net; |
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const struct rpc_xprt_iter_ops *xps_iter_ops; |
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struct rcu_head xps_rcu; |
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}; |
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struct rpc_xprt_iter { |
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struct rpc_xprt_switch __rcu *xpi_xpswitch; |
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struct rpc_xprt * xpi_cursor; |
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const struct rpc_xprt_iter_ops *xpi_ops; |
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}; |
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struct rpc_xprt_iter_ops { |
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void (*xpi_rewind)(struct rpc_xprt_iter *); |
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struct rpc_xprt *(*xpi_xprt)(struct rpc_xprt_iter *); |
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struct rpc_xprt *(*xpi_next)(struct rpc_xprt_iter *); |
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}; |
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extern struct rpc_xprt_switch *xprt_switch_alloc(struct rpc_xprt *xprt, |
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gfp_t gfp_flags); |
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extern struct rpc_xprt_switch *xprt_switch_get(struct rpc_xprt_switch *xps); |
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extern void xprt_switch_put(struct rpc_xprt_switch *xps); |
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extern void rpc_xprt_switch_set_roundrobin(struct rpc_xprt_switch *xps); |
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extern void rpc_xprt_switch_add_xprt(struct rpc_xprt_switch *xps, |
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struct rpc_xprt *xprt); |
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extern void rpc_xprt_switch_remove_xprt(struct rpc_xprt_switch *xps, |
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struct rpc_xprt *xprt); |
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extern void xprt_iter_init(struct rpc_xprt_iter *xpi, |
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struct rpc_xprt_switch *xps); |
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extern void xprt_iter_init_listall(struct rpc_xprt_iter *xpi, |
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struct rpc_xprt_switch *xps); |
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extern void xprt_iter_destroy(struct rpc_xprt_iter *xpi); |
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extern struct rpc_xprt_switch *xprt_iter_xchg_switch( |
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struct rpc_xprt_iter *xpi, |
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struct rpc_xprt_switch *newswitch); |
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extern struct rpc_xprt *xprt_iter_xprt(struct rpc_xprt_iter *xpi); |
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extern struct rpc_xprt *xprt_iter_get_xprt(struct rpc_xprt_iter *xpi); |
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extern struct rpc_xprt *xprt_iter_get_next(struct rpc_xprt_iter *xpi); |
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extern bool rpc_xprt_switch_has_addr(struct rpc_xprt_switch *xps, |
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const struct sockaddr *sap); |
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#endif
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