mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 08:49:45 +00:00
e0a912e8dd
Use a counter to keep track of how many requests are queued behind the xprt->xpt_mutex, and keep TCP_CORK set until the queue is empty. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Link: https://lore.kernel.org/linux-nfs/20210213202532.23146-1-trondmy@kernel.org/T/#u Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* linux/include/linux/sunrpc/svcsock.h
|
|
*
|
|
* RPC server socket I/O.
|
|
*
|
|
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
|
|
*/
|
|
|
|
#ifndef SUNRPC_SVCSOCK_H
|
|
#define SUNRPC_SVCSOCK_H
|
|
|
|
#include <linux/sunrpc/svc.h>
|
|
#include <linux/sunrpc/svc_xprt.h>
|
|
|
|
/*
|
|
* RPC server socket.
|
|
*/
|
|
struct svc_sock {
|
|
struct svc_xprt sk_xprt;
|
|
struct socket * sk_sock; /* berkeley socket layer */
|
|
struct sock * sk_sk; /* INET layer */
|
|
|
|
/* We keep the old state_change and data_ready CB's here */
|
|
void (*sk_ostate)(struct sock *);
|
|
void (*sk_odata)(struct sock *);
|
|
void (*sk_owspace)(struct sock *);
|
|
|
|
/* private TCP part */
|
|
/* On-the-wire fragment header: */
|
|
__be32 sk_marker;
|
|
/* As we receive a record, this includes the length received so
|
|
* far (including the fragment header): */
|
|
u32 sk_tcplen;
|
|
/* Total length of the data (not including fragment headers)
|
|
* received so far in the fragments making up this rpc: */
|
|
u32 sk_datalen;
|
|
/* Number of queued send requests */
|
|
atomic_t sk_sendqlen;
|
|
|
|
struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */
|
|
};
|
|
|
|
static inline u32 svc_sock_reclen(struct svc_sock *svsk)
|
|
{
|
|
return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
|
|
}
|
|
|
|
static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
|
|
{
|
|
return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
|
|
}
|
|
|
|
/*
|
|
* Function prototypes.
|
|
*/
|
|
void svc_close_net(struct svc_serv *, struct net *);
|
|
int svc_recv(struct svc_rqst *, long);
|
|
int svc_send(struct svc_rqst *);
|
|
void svc_drop(struct svc_rqst *);
|
|
void svc_sock_update_bufs(struct svc_serv *serv);
|
|
bool svc_alien_sock(struct net *net, int fd);
|
|
int svc_addsock(struct svc_serv *serv, const int fd,
|
|
char *name_return, const size_t len,
|
|
const struct cred *cred);
|
|
void svc_init_xprt_sock(void);
|
|
void svc_cleanup_xprt_sock(void);
|
|
struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
|
|
void svc_sock_destroy(struct svc_xprt *);
|
|
|
|
/*
|
|
* svc_makesock socket characteristics
|
|
*/
|
|
#define SVC_SOCK_DEFAULTS (0U)
|
|
#define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */
|
|
#define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */
|
|
|
|
#endif /* SUNRPC_SVCSOCK_H */
|