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Commit a67d18f8 authored by Tom Talpey's avatar Tom Talpey Committed by Trond Myklebust
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NFS: load the rpc/rdma transport module automatically 



When mounting an NFS/RDMA server with the "-o proto=rdma" or
"-o rdma" options, attempt to dynamically load the necessary
"xprtrdma" client transport module. Doing so improves usability,
while avoiding a static module dependency and any unnecesary
resources.

Signed-off-by: default avatarTom Talpey <tmtalpey@gmail.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 441e3e24

fs/nfs/super.c

+3 −1
Original line number Diff line number Diff line
@@ -1018,6 +1018,7 @@ static int nfs_parse_mount_options(char *raw, 
		case Opt_rdma:

			mnt->flags |= NFS_MOUNT_TCP; /* for side protocols */

			mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;

			xprt_load_transport(p);

			break;

		case Opt_acl:

			mnt->flags &= ~NFS_MOUNT_NOACL;
@@ -1205,12 +1206,14 @@ static int nfs_parse_mount_options(char *raw, 
				/* vector side protocols to TCP */

				mnt->flags |= NFS_MOUNT_TCP;

				mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;

				xprt_load_transport(string);

				break;

			default:

				errors++;

				dfprintk(MOUNT, "NFS:   unrecognized "

						"transport protocol\n");

			}

			kfree(string);

			break;

		case Opt_mountproto:

			string = match_strdup(args);
@@ -1218,7 +1221,6 @@ static int nfs_parse_mount_options(char *raw, 
				goto out_nomem;

			token = match_token(string,

					    nfs_xprt_protocol_tokens, args);

			kfree(string);



			switch (token) {

			case Opt_xprt_udp: