Commit 1fc5f131 authored by Trond Myklebust's avatar Trond Myklebust
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SUNRPC: Add a helper to return the transport identifier given a netid 



Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 9bccd264

include/linux/sunrpc/xprt.h

+1 −0
Original line number Diff line number Diff line
@@ -386,6 +386,7 @@ xprt_disable_swap(struct rpc_xprt *xprt) 
int			xprt_register_transport(struct xprt_class *type);

int			xprt_unregister_transport(struct xprt_class *type);

int			xprt_load_transport(const char *);

int			xprt_find_transport_ident(const char *);

void			xprt_wait_for_reply_request_def(struct rpc_task *task);

void			xprt_wait_for_reply_request_rtt(struct rpc_task *task);

void			xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status);

net/sunrpc/xprt.c

+21 −4
Original line number Diff line number Diff line
@@ -219,22 +219,39 @@ xprt_class_find_by_netid(const char *netid) 
}



/**

 * xprt_load_transport - load a transport implementation

 * xprt_find_transport_ident - convert a netid into a transport identifier

 * @netid: transport to load

 *

 * Returns:

 * 0:		transport successfully loaded

 * > 0:		transport identifier

 * -ENOENT:	transport module not available

 */

int xprt_load_transport(const char *netid)

int xprt_find_transport_ident(const char *netid)

{

	const struct xprt_class *t;

	int ret;



	t = xprt_class_find_by_netid(netid);

	if (!t)

		return -ENOENT;

	ret = t->ident;

	xprt_class_release(t);

	return 0;

	return ret;

}

EXPORT_SYMBOL_GPL(xprt_find_transport_ident);



/**

 * xprt_load_transport - load a transport implementation

 * @netid: transport to load

 *

 * Returns:

 * 0:		transport successfully loaded

 * -ENOENT:	transport module not available

 */

int xprt_load_transport(const char *netid)

{

	int ret = xprt_find_transport_ident(netid);

	return ret < 0 ? ret : 0;

}

EXPORT_SYMBOL_GPL(xprt_load_transport);