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SUNRPC: eliminate rpc_call()

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Clean-up: replace rpc_call() helper with direct call to rpc_call_sync.

This makes NFSv2 and NFSv3 synchronous calls more computationally
efficient, and reduces stack consumption in functions that used to
invoke rpc_call more than once.

Test plan:
Compile kernel with CONFIG_NFS enabled.  Connectathon on NFS version 2,
version 3, and version 4 mount points.

Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2006-03-20 13:44:23 -05:00
committed by Trond Myklebust
parent cc0175c1dc
commit dead28da8e
8 changed files with 237 additions and 95 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
net/sunrpc/pmap_clnt.c
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@@ -104,6 +104,11 @@ rpc_getport_external(struct sockaddr_in *sin, __u32 prog, __u32 vers, int prot)
.pm_prot = prot,
.pm_port = 0
};
struct rpc_message msg = {
.rpc_proc = &pmap_procedures[PMAP_GETPORT],
.rpc_argp = &map,
.rpc_resp = &map.pm_port,
};
struct rpc_clnt *pmap_clnt;
char hostname[32];
int status;
@@ -117,7 +122,7 @@ rpc_getport_external(struct sockaddr_in *sin, __u32 prog, __u32 vers, int prot)
return PTR_ERR(pmap_clnt);
/* Setup the call info struct */
status = rpc_call(pmap_clnt, PMAP_GETPORT, &map, &map.pm_port, 0);
status = rpc_call_sync(pmap_clnt, &msg, 0);
if (status >= 0) {
if (map.pm_port != 0)
@@ -162,16 +167,27 @@ pmap_getport_done(struct rpc_task *task)
int
rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
{
struct sockaddr_in sin;
struct rpc_portmap map;
struct sockaddr_in sin = {
.sin_family = AF_INET,
.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
};
struct rpc_portmap map = {
.pm_prog = prog,
.pm_vers = vers,
.pm_prot = prot,
.pm_port = port,
};
struct rpc_message msg = {
.rpc_proc = &pmap_procedures[port ? PMAP_SET : PMAP_UNSET],
.rpc_argp = &map,
.rpc_resp = okay,
};
struct rpc_clnt *pmap_clnt;
int error = 0;
dprintk("RPC: registering (%d, %d, %d, %d) with portmapper.\n",
prog, vers, prot, port);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
pmap_clnt = pmap_create("localhost", &sin, IPPROTO_UDP, 1);
if (IS_ERR(pmap_clnt)) {
error = PTR_ERR(pmap_clnt);
@@ -179,13 +195,7 @@ rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
return error;
}
map.pm_prog = prog;
map.pm_vers = vers;
map.pm_prot = prot;
map.pm_port = port;
error = rpc_call(pmap_clnt, port? PMAP_SET : PMAP_UNSET,
&map, okay, 0);
error = rpc_call_sync(pmap_clnt, &msg, 0);
if (error < 0) {
printk(KERN_WARNING