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authorMike Sager <sager@netapp.com>2009-04-01 17:21:48 +0400
committerBenny Halevy <bhalevy@panasas.com>2009-06-17 21:46:15 +0400
commit3fd5be9e19921a89d9ed78d6a708a379a6c3c76a (patch)
tree0eb6e104ef3f9e83b3cbc96fe941cd51e4fa2e9e /fs
parent44549dff82753b6a5ffabcefeead34be63e95d96 (diff)
downloadlinux-3fd5be9e19921a89d9ed78d6a708a379a6c3c76a.tar.xz
nfs41: add mount command option minorversion
mount -t nfs4 -o minorversion=[0|1] specifies whether to use 4.0 or 4.1. By default, the minorversion is set to 0. Signed-off-by: Mike Sager <sager@netapp.com> [set default minorversion to 0 as per Trond and SteveD's request] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/internal.h1
-rw-r--r--fs/nfs/super.c10
2 files changed, 11 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index e4d6a8348adf..ffa6bd54d439 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -44,6 +44,7 @@ struct nfs_parsed_mount_data {
unsigned int auth_flavor_len;
rpc_authflavor_t auth_flavors[1];
char *client_address;
+ unsigned int minorversion;
char *fscache_uniq;
struct {
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index d2d67781c579..5a8fdc791cc1 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -90,6 +90,7 @@ enum {
Opt_mountport,
Opt_mountvers,
Opt_nfsvers,
+ Opt_minorversion,
/* Mount options that take string arguments */
Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
@@ -155,6 +156,7 @@ static const match_table_t nfs_mount_option_tokens = {
{ Opt_mountvers, "mountvers=%u" },
{ Opt_nfsvers, "nfsvers=%u" },
{ Opt_nfsvers, "vers=%u" },
+ { Opt_minorversion, "minorversion=%u" },
{ Opt_sec, "sec=%s" },
{ Opt_proto, "proto=%s" },
@@ -1211,6 +1213,13 @@ static int nfs_parse_mount_options(char *raw,
nfs_parse_invalid_value("nfsvers");
}
break;
+ case Opt_minorversion:
+ if (match_int(args, &option))
+ return 0;
+ if (option < 0 || option > NFS4_MAX_MINOR_VERSION)
+ return 0;
+ mnt->minorversion = option;
+ break;
/*
* options that take text values
@@ -2261,6 +2270,7 @@ static int nfs4_validate_mount_data(void *options,
args->nfs_server.port = NFS_PORT; /* 2049 unless user set port= */
args->auth_flavors[0] = RPC_AUTH_UNIX;
args->auth_flavor_len = 0;
+ args->minorversion = 0;
switch (data->version) {
case 1: