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c743b4259c
Most svc threads have no interest in a timeout. nfsd sets it to 1 hour, but this is a wart of no significance. lockd uses the timeout so that it can call nlmsvc_retry_blocked(). It also sometimes calls svc_wake_up() to ensure this is called. So change lockd to be consistent and always use svc_wake_up() to trigger nlmsvc_retry_blocked() - using a timer instead of a timeout to svc_recv(). And change svc_recv() to not take a timeout arg. This makes the sp_threads_timedout counter always zero. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* linux/include/linux/sunrpc/svcsock.h
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*
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* RPC server socket I/O.
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*
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* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
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*/
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#ifndef SUNRPC_SVCSOCK_H
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#define SUNRPC_SVCSOCK_H
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#include <linux/sunrpc/svc.h>
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#include <linux/sunrpc/svc_xprt.h>
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/*
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* RPC server socket.
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*/
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struct svc_sock {
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struct svc_xprt sk_xprt;
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struct socket * sk_sock; /* berkeley socket layer */
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struct sock * sk_sk; /* INET layer */
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/* We keep the old state_change and data_ready CB's here */
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void (*sk_ostate)(struct sock *);
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void (*sk_odata)(struct sock *);
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void (*sk_owspace)(struct sock *);
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/* private TCP part */
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/* On-the-wire fragment header: */
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__be32 sk_marker;
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/* As we receive a record, this includes the length received so
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* far (including the fragment header): */
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u32 sk_tcplen;
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/* Total length of the data (not including fragment headers)
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* received so far in the fragments making up this rpc: */
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u32 sk_datalen;
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struct page_frag_cache sk_frag_cache;
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struct completion sk_handshake_done;
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struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */
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};
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static inline u32 svc_sock_reclen(struct svc_sock *svsk)
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{
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return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
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}
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static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
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{
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return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
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}
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/*
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* Function prototypes.
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*/
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void svc_close_net(struct svc_serv *, struct net *);
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void svc_recv(struct svc_rqst *rqstp);
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void svc_send(struct svc_rqst *rqstp);
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void svc_drop(struct svc_rqst *);
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void svc_sock_update_bufs(struct svc_serv *serv);
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int svc_addsock(struct svc_serv *serv, struct net *net,
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const int fd, char *name_return, const size_t len,
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const struct cred *cred);
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void svc_init_xprt_sock(void);
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void svc_cleanup_xprt_sock(void);
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struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
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void svc_sock_destroy(struct svc_xprt *);
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/*
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* svc_makesock socket characteristics
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*/
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#define SVC_SOCK_DEFAULTS (0U)
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#define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */
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#define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */
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#endif /* SUNRPC_SVCSOCK_H */
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