From ba7392bb37cb12781890f45d7ddee1618e33a036 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 20 Dec 2007 16:03:55 -0500 Subject: SUNRPC: Add support for per-client timeout values In order to be able to support setting the timeo and retrans parameters on a per-mountpoint basis, we move the rpc_timeout structure into the rpc_clnt. Signed-off-by: Trond Myklebust diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 4fc268a..51a3381 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -46,6 +46,7 @@ struct rpc_clnt { cl_autobind : 1;/* use getport() */ struct rpc_rtt * cl_rtt; /* RTO estimator data */ + const struct rpc_timeout *cl_timeout; /* Timeout strategy */ int cl_nodelen; /* nodename length */ char cl_nodename[UNX_MAXNODENAME]; @@ -54,6 +55,7 @@ struct rpc_clnt { struct dentry * cl_dentry; /* inode */ struct rpc_clnt * cl_parent; /* Points to parent of clones */ struct rpc_rtt cl_rtt_default; + struct rpc_timeout cl_timeout_default; struct rpc_program * cl_program; char cl_inline_name[32]; }; @@ -99,7 +101,7 @@ struct rpc_create_args { struct sockaddr *address; size_t addrsize; struct sockaddr *saddress; - struct rpc_timeout *timeout; + const struct rpc_timeout *timeout; char *servername; struct rpc_program *program; u32 version; diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index a00d4a4..c3364d8 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -120,7 +120,7 @@ struct rpc_xprt { struct kref kref; /* Reference count */ struct rpc_xprt_ops * ops; /* transport methods */ - struct rpc_timeout timeout; /* timeout parms */ + const struct rpc_timeout *timeout; /* timeout parms */ struct sockaddr_storage addr; /* server address */ size_t addrlen; /* size of server address */ int prot; /* IP protocol */ @@ -191,7 +191,6 @@ struct xprt_create { struct sockaddr * srcaddr; /* optional local address */ struct sockaddr * dstaddr; /* remote peer address */ size_t addrlen; - struct rpc_timeout * timeout; /* optional timeout parameters */ }; struct xprt_class { diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6a6b96e..a3c00da 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -188,8 +188,15 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru if (!xprt_bound(clnt->cl_xprt)) clnt->cl_autobind = 1; + clnt->cl_timeout = xprt->timeout; + if (args->timeout != NULL) { + memcpy(&clnt->cl_timeout_default, args->timeout, + sizeof(clnt->cl_timeout_default)); + clnt->cl_timeout = &clnt->cl_timeout_default; + } + clnt->cl_rtt = &clnt->cl_rtt_default; - rpc_init_rtt(&clnt->cl_rtt_default, xprt->timeout.to_initval); + rpc_init_rtt(&clnt->cl_rtt_default, clnt->cl_timeout->to_initval); kref_init(&clnt->cl_kref); @@ -251,7 +258,6 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) .srcaddr = args->saddress, .dstaddr = args->address, .addrlen = args->addrsize, - .timeout = args->timeout }; char servername[48]; @@ -348,7 +354,7 @@ rpc_clone_client(struct rpc_clnt *clnt) new->cl_autobind = 0; INIT_LIST_HEAD(&new->cl_tasks); spin_lock_init(&new->cl_lock); - rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval); + rpc_init_rtt(&new->cl_rtt_default, clnt->cl_timeout->to_initval); new->cl_metrics = rpc_alloc_iostats(clnt); if (new->cl_metrics == NULL) goto out_no_stats; diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 2bc9956..cfcade9 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -501,9 +501,10 @@ EXPORT_SYMBOL_GPL(xprt_set_retrans_timeout_def); void xprt_set_retrans_timeout_rtt(struct rpc_task *task) { int timer = task->tk_msg.rpc_proc->p_timer; - struct rpc_rtt *rtt = task->tk_client->cl_rtt; + struct rpc_clnt *clnt = task->tk_client; + struct rpc_rtt *rtt = clnt->cl_rtt; struct rpc_rqst *req = task->tk_rqstp; - unsigned long max_timeout = req->rq_xprt->timeout.to_maxval; + unsigned long max_timeout = clnt->cl_timeout->to_maxval; task->tk_timeout = rpc_calc_rto(rtt, timer); task->tk_timeout <<= rpc_ntimeo(rtt, timer) + req->rq_retries; @@ -514,7 +515,7 @@ EXPORT_SYMBOL_GPL(xprt_set_retrans_timeout_rtt); static void xprt_reset_majortimeo(struct rpc_rqst *req) { - struct rpc_timeout *to = &req->rq_xprt->timeout; + const struct rpc_timeout *to = req->rq_task->tk_client->cl_timeout; req->rq_majortimeo = req->rq_timeout; if (to->to_exponential) @@ -534,7 +535,7 @@ static void xprt_reset_majortimeo(struct rpc_rqst *req) int xprt_adjust_timeout(struct rpc_rqst *req) { struct rpc_xprt *xprt = req->rq_xprt; - struct rpc_timeout *to = &xprt->timeout; + const struct rpc_timeout *to = req->rq_task->tk_client->cl_timeout; int status = 0; if (time_before(jiffies, req->rq_majortimeo)) { @@ -928,7 +929,7 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt) { struct rpc_rqst *req = task->tk_rqstp; - req->rq_timeout = xprt->timeout.to_initval; + req->rq_timeout = task->tk_client->cl_timeout->to_initval; req->rq_task = task; req->rq_xprt = xprt; req->rq_buffer = NULL; diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 39f1001..d1389af 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -332,7 +332,7 @@ xprt_setup_rdma(struct xprt_create *args) } /* 60 second timeout, no retries */ - memcpy(&xprt->timeout, &xprt_rdma_default_timeout, sizeof(xprt->timeout)); + xprt->timeout = &xprt_rdma_default_timeout; xprt->bind_timeout = (60U * HZ); xprt->connect_timeout = (60U * HZ); xprt->reestablish_timeout = (5U * HZ); diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index d7b07ac..6ba329d 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1912,7 +1912,6 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args) struct sockaddr *addr = args->dstaddr; struct rpc_xprt *xprt; struct sock_xprt *transport; - const struct rpc_timeout *timeo = &xs_udp_default_timeout; xprt = xs_setup_xprt(args, xprt_udp_slot_table_entries); if (IS_ERR(xprt)) @@ -1931,9 +1930,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args) xprt->ops = &xs_udp_ops; - if (args->timeout != NULL) - timeo = args->timeout; - memcpy(&xprt->timeout, timeo, sizeof(xprt->timeout)); + xprt->timeout = &xs_udp_default_timeout; switch (addr->sa_family) { case AF_INET: @@ -1984,7 +1981,6 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args) struct sockaddr *addr = args->dstaddr; struct rpc_xprt *xprt; struct sock_xprt *transport; - const struct rpc_timeout *timeo = &xs_tcp_default_timeout; xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries); if (IS_ERR(xprt)) @@ -2001,10 +1997,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args) xprt->idle_timeout = XS_IDLE_DISC_TO; xprt->ops = &xs_tcp_ops; - - if (args->timeout != NULL) - timeo = args->timeout; - memcpy(&xprt->timeout, timeo, sizeof(xprt->timeout)); + xprt->timeout = &xs_tcp_default_timeout; switch (addr->sa_family) { case AF_INET: -- cgit v0.10.2