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authorTrond Myklebust <trond.myklebust@primarydata.com>2017-04-27 18:13:40 +0300
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-06 21:54:50 +0300
commit6619079d05404cb32be29af329b87ac3b0ad4f96 (patch)
tree76d7bd7275a30e9758c20cbaacc21ae950a93157 /fs/nfs/nfs4client.c
parent28cc5cd8c68f1cd2146d88c7a54cc3234ed4dabe (diff)
downloadlinux-6619079d05404cb32be29af329b87ac3b0ad4f96.tar.xz
NFSv4: Allow multiple connections to NFSv4.x (x>0) servers
If the user specifies the -onconn=<number> mount option, and the transport protocol is TCP, then set up <number> connections to the server. The connections will all go to the same IP address. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/nfs4client.c')
-rw-r--r--fs/nfs/nfs4client.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 81b9b6d7927a..5c244c440658 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -859,7 +859,8 @@ static int nfs4_set_client(struct nfs_server *server,
const size_t addrlen,
const char *ip_addr,
int proto, const struct rpc_timeout *timeparms,
- u32 minorversion, struct net *net)
+ u32 minorversion, unsigned int nconnect,
+ struct net *net)
{
struct nfs_client_initdata cl_init = {
.hostname = hostname,
@@ -875,6 +876,8 @@ static int nfs4_set_client(struct nfs_server *server,
};
struct nfs_client *clp;
+ if (minorversion > 0 && proto == XPRT_TRANSPORT_TCP)
+ cl_init.nconnect = nconnect;
if (server->flags & NFS_MOUNT_NORESVPORT)
set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
if (server->options & NFS_OPTION_MIGRATION)
@@ -1074,6 +1077,7 @@ static int nfs4_init_server(struct nfs_server *server,
data->nfs_server.protocol,
&timeparms,
data->minorversion,
+ data->nfs_server.nconnect,
data->net);
if (error < 0)
return error;
@@ -1163,6 +1167,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
XPRT_TRANSPORT_RDMA,
parent_server->client->cl_timeout,
parent_client->cl_mvops->minor_version,
+ parent_client->cl_nconnect,
parent_client->cl_net);
if (!error)
goto init_server;
@@ -1176,6 +1181,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
XPRT_TRANSPORT_TCP,
parent_server->client->cl_timeout,
parent_client->cl_mvops->minor_version,
+ parent_client->cl_nconnect,
parent_client->cl_net);
if (error < 0)
goto error;
@@ -1271,7 +1277,8 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
error = nfs4_set_client(server, hostname, sap, salen, buf,
clp->cl_proto, clnt->cl_timeout,
- clp->cl_minorversion, net);
+ clp->cl_minorversion,
+ clp->cl_nconnect, net);
clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);
if (error != 0) {
nfs_server_insert_lists(server);