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svc: Add a generic transport svc_create_xprt function

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The svc_create_xprt function is a transport independent version
of the svc_makesock function.

Since transport instance creation contains transport dependent and
independent components, add an xpo_create transport function. The
transport implementation of this function allocates the memory for the
endpoint, implements the transport dependent initialization logic, and
calls svc_xprt_init to initialize the transport independent field (svc_xprt)
in it's data structure.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Acked-by: Neil Brown <neilb@suse.de>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Greg Banks <gnb@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Tom Tucker
2007-12-30 21:07:42 -06:00
committed by J. Bruce Fields
parent f9f3cc4fae
commit b700cbb11f
3 changed files with 85 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
net/sunrpc/svc_xprt.c
View File

@@ -81,3 +81,40 @@ void svc_xprt_init(struct svc_xprt_class *xcl, struct svc_xprt *xprt)
xprt->xpt_ops = xcl->xcl_ops;
}
EXPORT_SYMBOL_GPL(svc_xprt_init);
int svc_create_xprt(struct svc_serv *serv, char *xprt_name, unsigned short port,
int flags)
{
struct svc_xprt_class *xcl;
int ret = -ENOENT;
struct sockaddr_in sin = {
.sin_family = AF_INET,
.sin_addr.s_addr = INADDR_ANY,
.sin_port = htons(port),
};
dprintk("svc: creating transport %s[%d]\n", xprt_name, port);
spin_lock(&svc_xprt_class_lock);
list_for_each_entry(xcl, &svc_xprt_class_list, xcl_list) {
if (strcmp(xprt_name, xcl->xcl_name) == 0) {
spin_unlock(&svc_xprt_class_lock);
if (try_module_get(xcl->xcl_owner)) {
struct svc_xprt *newxprt;
ret = 0;
newxprt = xcl->xcl_ops->xpo_create
(serv,
(struct sockaddr *)&sin, sizeof(sin),
flags);
if (IS_ERR(newxprt)) {
module_put(xcl->xcl_owner);
ret = PTR_ERR(newxprt);
}
}
goto out;
}
}
spin_unlock(&svc_xprt_class_lock);
dprintk("svc: transport %s not found\n", xprt_name);
out:
return ret;
}
EXPORT_SYMBOL_GPL(svc_create_xprt);