author | Florian Westphal <fw@strlen.de> |
Thu, 09 Apr 2009 12:07:21 +0200 | |
changeset 2 | d1f6d8b6f81c |
parent 0 | aa628870c1d3 |
permissions | -rw-r--r-- |
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Port of Linux 2.6.28 for use with network simulation cradle.
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/* |
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* linux/include/linux/sunrpc/svc.h |
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* |
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* RPC server declarations. |
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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_SVC_H |
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#define SUNRPC_SVC_H |
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|
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#include <linux/in.h> |
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#include <linux/in6.h> |
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#include <linux/sunrpc/types.h> |
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#include <linux/sunrpc/xdr.h> |
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#include <linux/sunrpc/auth.h> |
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#include <linux/sunrpc/svcauth.h> |
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#include <linux/wait.h> |
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#include <linux/mm.h> |
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|
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/* |
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* This is the RPC server thread function prototype |
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*/ |
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typedef int (*svc_thread_fn)(void *); |
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|
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/* |
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* |
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* RPC service thread pool. |
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* |
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* Pool of threads and temporary sockets. Generally there is only |
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* a single one of these per RPC service, but on NUMA machines those |
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* services that can benefit from it (i.e. nfs but not lockd) will |
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* have one pool per NUMA node. This optimisation reduces cross- |
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* node traffic on multi-node NUMA NFS servers. |
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*/ |
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struct svc_pool { |
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unsigned int sp_id; /* pool id; also node id on NUMA */ |
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spinlock_t sp_lock; /* protects all fields */ |
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struct list_head sp_threads; /* idle server threads */ |
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struct list_head sp_sockets; /* pending sockets */ |
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unsigned int sp_nrthreads; /* # of threads in pool */ |
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struct list_head sp_all_threads; /* all server threads */ |
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} ____cacheline_aligned_in_smp; |
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|
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/* |
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* RPC service. |
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* |
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* An RPC service is a ``daemon,'' possibly multithreaded, which |
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* receives and processes incoming RPC messages. |
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* It has one or more transport sockets associated with it, and maintains |
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* a list of idle threads waiting for input. |
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* |
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* We currently do not support more than one RPC program per daemon. |
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*/ |
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struct svc_serv { |
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struct svc_program * sv_program; /* RPC program */ |
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struct svc_stat * sv_stats; /* RPC statistics */ |
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spinlock_t sv_lock; |
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unsigned int sv_nrthreads; /* # of server threads */ |
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unsigned int sv_maxconn; /* max connections allowed or |
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* '0' causing max to be based |
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* on number of threads. */ |
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||
0
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unsigned int sv_max_payload; /* datagram payload size */ |
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unsigned int sv_max_mesg; /* max_payload + 1 page for overheads */ |
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unsigned int sv_xdrsize; /* XDR buffer size */ |
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struct list_head sv_permsocks; /* all permanent sockets */ |
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struct list_head sv_tempsocks; /* all temporary sockets */ |
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int sv_tmpcnt; /* count of temporary sockets */ |
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struct timer_list sv_temptimer; /* timer for aging temporary sockets */ |
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sa_family_t sv_family; /* listener's address family */ |
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|
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char * sv_name; /* service name */ |
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|
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unsigned int sv_nrpools; /* number of thread pools */ |
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struct svc_pool * sv_pools; /* array of thread pools */ |
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void (*sv_shutdown)(struct svc_serv *serv); |
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/* Callback to use when last thread |
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* exits. |
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*/ |
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|
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struct module * sv_module; /* optional module to count when |
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* adding threads */ |
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svc_thread_fn sv_function; /* main function for threads */ |
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}; |
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/* |
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* We use sv_nrthreads as a reference count. svc_destroy() drops |
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* this refcount, so we need to bump it up around operations that |
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* change the number of threads. Horrible, but there it is. |
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* Should be called with the BKL held. |
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*/ |
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static inline void svc_get(struct svc_serv *serv) |
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{ |
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serv->sv_nrthreads++; |
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} |
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|
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/* |
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* Maximum payload size supported by a kernel RPC server. |
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* This is use to determine the max number of pages nfsd is |
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* willing to return in a single READ operation. |
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* |
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* These happen to all be powers of 2, which is not strictly |
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* necessary but helps enforce the real limitation, which is |
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* that they should be multiples of PAGE_CACHE_SIZE. |
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* |
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* For UDP transports, a block plus NFS,RPC, and UDP headers |
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* has to fit into the IP datagram limit of 64K. The largest |
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* feasible number for all known page sizes is probably 48K, |
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* but we choose 32K here. This is the same as the historical |
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* Linux limit; someone who cares more about NFS/UDP performance |
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* can test a larger number. |
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* |
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* For TCP transports we have more freedom. A size of 1MB is |
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117 |
* chosen to match the client limit. Other OSes are known to |
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* have larger limits, but those numbers are probably beyond |
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* the point of diminishing returns. |
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120 |
*/ |
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121 |
#define RPCSVC_MAXPAYLOAD (1*1024*1024u) |
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#define RPCSVC_MAXPAYLOAD_TCP RPCSVC_MAXPAYLOAD |
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#define RPCSVC_MAXPAYLOAD_UDP (32*1024u) |
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124 |
|
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extern u32 svc_max_payload(const struct svc_rqst *rqstp); |
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126 |
|
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127 |
/* |
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128 |
* RPC Requsts and replies are stored in one or more pages. |
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129 |
* We maintain an array of pages for each server thread. |
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130 |
* Requests are copied into these pages as they arrive. Remaining |
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131 |
* pages are available to write the reply into. |
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132 |
* |
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133 |
* Pages are sent using ->sendpage so each server thread needs to |
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134 |
* allocate more to replace those used in sending. To help keep track |
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135 |
* of these pages we have a receive list where all pages initialy live, |
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136 |
* and a send list where pages are moved to when there are to be part |
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137 |
* of a reply. |
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138 |
* |
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139 |
* We use xdr_buf for holding responses as it fits well with NFS |
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140 |
* read responses (that have a header, and some data pages, and possibly |
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141 |
* a tail) and means we can share some client side routines. |
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142 |
* |
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143 |
* The xdr_buf.head kvec always points to the first page in the rq_*pages |
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144 |
* list. The xdr_buf.pages pointer points to the second page on that |
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145 |
* list. xdr_buf.tail points to the end of the first page. |
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146 |
* This assumes that the non-page part of an rpc reply will fit |
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147 |
* in a page - NFSd ensures this. lockd also has no trouble. |
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148 |
* |
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149 |
* Each request/reply pair can have at most one "payload", plus two pages, |
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150 |
* one for the request, and one for the reply. |
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|
151 |
* We using ->sendfile to return read data, we might need one extra page |
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152 |
* if the request is not page-aligned. So add another '1'. |
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153 |
*/ |
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154 |
#define RPCSVC_MAXPAGES ((RPCSVC_MAXPAYLOAD+PAGE_SIZE-1)/PAGE_SIZE \ |
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155 |
+ 2 + 1) |
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156 |
|
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157 |
static inline u32 svc_getnl(struct kvec *iov) |
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158 |
{ |
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159 |
__be32 val, *vp; |
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160 |
vp = iov->iov_base; |
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161 |
val = *vp++; |
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162 |
iov->iov_base = (void*)vp; |
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163 |
iov->iov_len -= sizeof(__be32); |
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164 |
return ntohl(val); |
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165 |
} |
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166 |
|
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167 |
static inline void svc_putnl(struct kvec *iov, u32 val) |
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168 |
{ |
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169 |
__be32 *vp = iov->iov_base + iov->iov_len; |
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170 |
*vp = htonl(val); |
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171 |
iov->iov_len += sizeof(__be32); |
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172 |
} |
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173 |
|
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174 |
static inline __be32 svc_getu32(struct kvec *iov) |
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175 |
{ |
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176 |
__be32 val, *vp; |
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177 |
vp = iov->iov_base; |
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178 |
val = *vp++; |
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179 |
iov->iov_base = (void*)vp; |
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180 |
iov->iov_len -= sizeof(__be32); |
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181 |
return val; |
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|
182 |
} |
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|
183 |
|
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184 |
static inline void svc_ungetu32(struct kvec *iov) |
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185 |
{ |
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186 |
__be32 *vp = (__be32 *)iov->iov_base; |
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187 |
iov->iov_base = (void *)(vp - 1); |
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|
188 |
iov->iov_len += sizeof(*vp); |
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|
189 |
} |
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|
190 |
|
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191 |
static inline void svc_putu32(struct kvec *iov, __be32 val) |
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|
192 |
{ |
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193 |
__be32 *vp = iov->iov_base + iov->iov_len; |
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194 |
*vp = val; |
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195 |
iov->iov_len += sizeof(__be32); |
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196 |
} |
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197 |
|
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198 |
union svc_addr_u { |
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199 |
struct in_addr addr; |
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200 |
struct in6_addr addr6; |
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201 |
}; |
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202 |
|
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203 |
/* |
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204 |
* The context of a single thread, including the request currently being |
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205 |
* processed. |
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|
206 |
*/ |
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207 |
struct svc_rqst { |
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208 |
struct list_head rq_list; /* idle list */ |
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209 |
struct list_head rq_all; /* all threads list */ |
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210 |
struct svc_xprt * rq_xprt; /* transport ptr */ |
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|
211 |
struct sockaddr_storage rq_addr; /* peer address */ |
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212 |
size_t rq_addrlen; |
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213 |
|
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214 |
struct svc_serv * rq_server; /* RPC service definition */ |
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|
215 |
struct svc_pool * rq_pool; /* thread pool */ |
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|
216 |
struct svc_procedure * rq_procinfo; /* procedure info */ |
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|
217 |
struct auth_ops * rq_authop; /* authentication flavour */ |
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|
218 |
u32 rq_flavor; /* pseudoflavor */ |
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|
219 |
struct svc_cred rq_cred; /* auth info */ |
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220 |
void * rq_xprt_ctxt; /* transport specific context ptr */ |
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221 |
struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */ |
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222 |
|
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223 |
size_t rq_xprt_hlen; /* xprt header len */ |
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|
224 |
struct xdr_buf rq_arg; |
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|
225 |
struct xdr_buf rq_res; |
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|
226 |
struct page * rq_pages[RPCSVC_MAXPAGES]; |
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|
227 |
struct page * *rq_respages; /* points into rq_pages */ |
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int rq_resused; /* number of pages used for result */ |
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|
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struct kvec rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */ |
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|
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__be32 rq_xid; /* transmission id */ |
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u32 rq_prog; /* program number */ |
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u32 rq_vers; /* program version */ |
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u32 rq_proc; /* procedure number */ |
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u32 rq_prot; /* IP protocol */ |
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unsigned short |
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rq_secure : 1; /* secure port */ |
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|
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union svc_addr_u rq_daddr; /* dest addr of request |
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* - reply from here */ |
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242 |
|
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void * rq_argp; /* decoded arguments */ |
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void * rq_resp; /* xdr'd results */ |
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void * rq_auth_data; /* flavor-specific data */ |
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246 |
|
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int rq_reserved; /* space on socket outq |
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* reserved for this request |
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249 |
*/ |
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250 |
|
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struct cache_req rq_chandle; /* handle passed to caches for |
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* request delaying |
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253 |
*/ |
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254 |
/* Catering to nfsd */ |
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255 |
struct auth_domain * rq_client; /* RPC peer info */ |
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struct auth_domain * rq_gssclient; /* "gss/"-style peer info */ |
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struct svc_cacherep * rq_cacherep; /* cache info */ |
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struct knfsd_fh * rq_reffh; /* Referrence filehandle, used to |
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259 |
* determine what device number |
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* to report (real or virtual) |
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|
261 |
*/ |
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262 |
int rq_splice_ok; /* turned off in gss privacy |
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|
263 |
* to prevent encrypting page |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
264 |
* cache pages */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
265 |
wait_queue_head_t rq_wait; /* synchronization */ |
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parents:
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|
266 |
struct task_struct *rq_task; /* service thread */ |
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267 |
}; |
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|
268 |
|
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269 |
/* |
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|
270 |
* Rigorous type checking on sockaddr type conversions |
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|
271 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
272 |
static inline struct sockaddr_in *svc_addr_in(const struct svc_rqst *rqst) |
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273 |
{ |
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274 |
return (struct sockaddr_in *) &rqst->rq_addr; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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275 |
} |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
276 |
|
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277 |
static inline struct sockaddr_in6 *svc_addr_in6(const struct svc_rqst *rqst) |
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|
278 |
{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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279 |
return (struct sockaddr_in6 *) &rqst->rq_addr; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
280 |
} |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
281 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
282 |
static inline struct sockaddr *svc_addr(const struct svc_rqst *rqst) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
283 |
{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
284 |
return (struct sockaddr *) &rqst->rq_addr; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
285 |
} |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
286 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
287 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
288 |
* Check buffer bounds after decoding arguments |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
289 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
290 |
static inline int |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
291 |
xdr_argsize_check(struct svc_rqst *rqstp, __be32 *p) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
292 |
{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
293 |
char *cp = (char *)p; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
294 |
struct kvec *vec = &rqstp->rq_arg.head[0]; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
295 |
return cp >= (char*)vec->iov_base |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
296 |
&& cp <= (char*)vec->iov_base + vec->iov_len; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
297 |
} |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
298 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
299 |
static inline int |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
300 |
xdr_ressize_check(struct svc_rqst *rqstp, __be32 *p) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
301 |
{ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
302 |
struct kvec *vec = &rqstp->rq_res.head[0]; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
303 |
char *cp = (char*)p; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
304 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
diff
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|
305 |
vec->iov_len = cp - (char*)vec->iov_base; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
306 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
diff
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|
307 |
return vec->iov_len <= PAGE_SIZE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
308 |
} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
309 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
310 |
static inline void svc_free_res_pages(struct svc_rqst *rqstp) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
311 |
{ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
312 |
while (rqstp->rq_resused) { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
313 |
struct page **pp = (rqstp->rq_respages + |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
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|
314 |
--rqstp->rq_resused); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
315 |
if (*pp) { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
316 |
put_page(*pp); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
diff
changeset
|
317 |
*pp = NULL; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
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|
318 |
} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
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|
319 |
} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
diff
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|
320 |
} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
321 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
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|
322 |
struct svc_deferred_req { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
323 |
u32 prot; /* protocol (UDP or TCP) */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
324 |
struct svc_xprt *xprt; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
325 |
struct sockaddr_storage addr; /* where reply must go */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
326 |
size_t addrlen; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
327 |
union svc_addr_u daddr; /* where reply must come from */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
328 |
struct cache_deferred_req handle; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
329 |
size_t xprt_hlen; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
330 |
int argslen; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
331 |
__be32 args[0]; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
332 |
}; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
333 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
334 |
/* |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
335 |
* List of RPC programs on the same transport endpoint |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
336 |
*/ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
337 |
struct svc_program { |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
338 |
struct svc_program * pg_next; /* other programs (same xprt) */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
339 |
u32 pg_prog; /* program number */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
340 |
unsigned int pg_lovers; /* lowest version */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
341 |
unsigned int pg_hivers; /* lowest version */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
342 |
unsigned int pg_nvers; /* number of versions */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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343 |
struct svc_version ** pg_vers; /* version array */ |
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344 |
char * pg_name; /* service name */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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345 |
char * pg_class; /* class name: services sharing authentication */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
346 |
struct svc_stat * pg_stats; /* rpc statistics */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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347 |
int (*pg_authenticate)(struct svc_rqst *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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348 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
349 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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350 |
/* |
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351 |
* RPC program version |
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Port of Linux 2.6.28 for use with network simulation cradle.
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352 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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353 |
struct svc_version { |
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Port of Linux 2.6.28 for use with network simulation cradle.
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354 |
u32 vs_vers; /* version number */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
355 |
u32 vs_nproc; /* number of procedures */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
356 |
struct svc_procedure * vs_proc; /* per-procedure info */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
357 |
u32 vs_xdrsize; /* xdrsize needed for this version */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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358 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
359 |
unsigned int vs_hidden : 1; /* Don't register with portmapper. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
360 |
* Only used for nfsacl so far. */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
361 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
362 |
/* Override dispatch function (e.g. when caching replies). |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
363 |
* A return value of 0 means drop the request. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
364 |
* vs_dispatch == NULL means use default dispatcher. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
365 |
*/ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
366 |
int (*vs_dispatch)(struct svc_rqst *, __be32 *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
367 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
368 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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369 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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370 |
* RPC procedure info |
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Port of Linux 2.6.28 for use with network simulation cradle.
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371 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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372 |
typedef __be32 (*svc_procfunc)(struct svc_rqst *, void *argp, void *resp); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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373 |
struct svc_procedure { |
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Port of Linux 2.6.28 for use with network simulation cradle.
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374 |
svc_procfunc pc_func; /* process the request */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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375 |
kxdrproc_t pc_decode; /* XDR decode args */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
376 |
kxdrproc_t pc_encode; /* XDR encode result */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
377 |
kxdrproc_t pc_release; /* XDR free result */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
378 |
unsigned int pc_argsize; /* argument struct size */ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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379 |
unsigned int pc_ressize; /* result struct size */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
380 |
unsigned int pc_count; /* call count */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
381 |
unsigned int pc_cachetype; /* cache info (NFS) */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
382 |
unsigned int pc_xdrressize; /* maximum size of XDR reply */ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
383 |
}; |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
384 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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385 |
/* |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
386 |
* Function prototypes. |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
387 |
*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
388 |
struct svc_serv *svc_create(struct svc_program *, unsigned int, sa_family_t, |
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Port of Linux 2.6.28 for use with network simulation cradle.
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389 |
void (*shutdown)(struct svc_serv *)); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
390 |
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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|
391 |
struct svc_pool *pool); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
392 |
void svc_exit_thread(struct svc_rqst *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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393 |
struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
394 |
sa_family_t, void (*shutdown)(struct svc_serv *), |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
395 |
svc_thread_fn, struct module *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
396 |
int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
397 |
void svc_destroy(struct svc_serv *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
398 |
int svc_process(struct svc_rqst *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
399 |
int svc_register(const struct svc_serv *, const unsigned short, |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
400 |
const unsigned short); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
401 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
402 |
void svc_wake_up(struct svc_serv *); |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
403 |
void svc_reserve(struct svc_rqst *rqstp, int space); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
404 |
struct svc_pool * svc_pool_for_cpu(struct svc_serv *serv, int cpu); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
405 |
char * svc_print_addr(struct svc_rqst *, char *, size_t); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
406 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
407 |
#define RPC_MAX_ADDRBUFLEN (63U) |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
408 |
|
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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|
409 |
/* |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
410 |
* When we want to reduce the size of the reserved space in the response |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
411 |
* buffer, we need to take into account the size of any checksum data that |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
412 |
* may be at the end of the packet. This is difficult to determine exactly |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
413 |
* for all cases without actually generating the checksum, so we just use a |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
414 |
* static value. |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
415 |
*/ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
416 |
static inline void svc_reserve_auth(struct svc_rqst *rqstp, int space) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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changeset
|
417 |
{ |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
418 |
int added_space = 0; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
419 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
420 |
if (rqstp->rq_authop->flavour) |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
421 |
added_space = RPC_MAX_AUTH_SIZE; |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
422 |
svc_reserve(rqstp, space + added_space); |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
423 |
} |
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
diff
changeset
|
424 |
|
aa628870c1d3
Port of Linux 2.6.28 for use with network simulation cradle.
Florian Westphal <fw@strlen.de>
parents:
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changeset
|
425 |
#endif /* SUNRPC_SVC_H */ |