From a217813f9067b785241cb7f31956e51d2071703a Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Sun, 30 Dec 2007 21:08:35 -0600 Subject: knfsd: Support adding transports by writing portlist file Update the write handler for the portlist file to allow creating new listening endpoints on a transport. The general form of the string is: For example: echo "tcp 2049" > /proc/fs/nfsd/portlist This is intended to support the creation of a listening endpoint for RDMA transports without adding #ifdef code to the nfssvc.c file. Transports can also be removed as follows: '-' For example: echo "-tcp 2049" > /proc/fs/nfsd/portlist Attempting to add a listener with an invalid transport string results in EPROTONOSUPPORT and a perror string of "Protocol not supported". Attempting to remove an non-existent listener (.e.g. bad proto or port) results in ENOTCONN and a perror string of "Transport endpoint is not connected" Signed-off-by: Tom Tucker Acked-by: Neil Brown Reviewed-by: Chuck Lever Reviewed-by: Greg Banks Signed-off-by: J. Bruce Fields --- net/sunrpc/svc_xprt.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/sunrpc') diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 512c10fc1a9..78359734387 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -842,6 +842,7 @@ void svc_close_xprt(struct svc_xprt *xprt) clear_bit(XPT_BUSY, &xprt->xpt_flags); svc_xprt_put(xprt); } +EXPORT_SYMBOL_GPL(svc_close_xprt); void svc_close_all(struct list_head *xprt_list) { @@ -1006,6 +1007,7 @@ struct svc_xprt *svc_find_xprt(struct svc_serv *serv, char *xcl_name, if (port && port != svc_xprt_local_port(xprt)) continue; found = xprt; + svc_xprt_get(xprt); break; } spin_unlock_bh(&serv->sv_lock); -- cgit v1.2.3-70-g09d2