Allow the user to specify that the client should use multiple connections
to the server. For the moment, this functionality will be limited to
TCP and to NFSv4.x (x>0).
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfs/internal.h | 1 +
fs/nfs/super.c | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 31b26cf1b476..31757a742e9b 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -117,6 +117,7 @@ struct nfs_parsed_mount_data {
char *export_path;
int port;
unsigned short protocol;
+ unsigned short nconnect;
} nfs_server;
struct security_mnt_opts lsm_opts;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 54e0f9f2dd94..7eb48934dc79 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -76,6 +76,8 @@
#define NFS_DEFAULT_VERSION 2
#endif
+#define NFS_MAX_CONNECTIONS 16
+
enum {
/* Mount options that take no arguments */
Opt_soft, Opt_hard,
@@ -107,6 +109,7 @@ enum {
Opt_nfsvers,
Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
Opt_addr, Opt_mountaddr, Opt_clientaddr,
+ Opt_nconnect,
Opt_lookupcache,
Opt_fscache_uniq,
Opt_local_lock,
@@ -179,6 +182,8 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_mounthost, "mounthost=%s" },
{ Opt_mountaddr, "mountaddr=%s" },
+ { Opt_nconnect, "nconnect=%s" },
+
{ Opt_lookupcache, "lookupcache=%s" },
{ Opt_fscache_uniq, "fsc=%s" },
{ Opt_local_lock, "local_lock=%s" },
@@ -1544,6 +1549,11 @@ static int nfs_parse_mount_options(char *raw,
if (mnt->mount_server.addrlen == 0)
goto out_invalid_address;
break;
+ case Opt_nconnect:
+ if (nfs_get_option_ul_bound(args, &option, 1, NFS_MAX_CONNECTIONS))
+ goto out_invalid_value;
+ mnt->nfs_server.nconnect = option;
+ break;
case Opt_lookupcache:
string = match_strdup(args);
if (string == NULL)
--
2.9.3
--
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