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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: Tom Talpey <tmtalpey@gmail.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Tom Talpey 2009-03-11 14:37:56 -04:00 committed by Trond Myklebust
parent 441e3e2429
commit a67d18f89f
1 changed files with 3 additions and 1 deletions
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4
fs/nfs/super.c
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@ -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: