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SUNRPC: Add support for per-client timeout values

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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 <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-12-20 16:03:55 -05:00
parent 2881ae74e6
commit ba7392bb37
6 changed files with 22 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/sunrpc/clnt.h
View File

@ -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;

3
include/linux/sunrpc/xprt.h
View File

@ -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 {

12
net/sunrpc/clnt.c
View File

@ -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;

11
net/sunrpc/xprt.c
View File

@ -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;

2
net/sunrpc/xprtrdma/transport.c
View File

@ -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);

11
net/sunrpc/xprtsock.c
View File

@ -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: