return 0;
if (strncmp(mi->type, "nfs4", 4) == 0)
mi->version = 4;
+ else {
+ char *option = po_get(mi->options, "proto");
+ if (option && strcmp(option, "rdma") == 0)
+ mi->version = 3;
+ }
if (!nfs_append_sloppy_option(mi->options))
return 0;
return result;
}
+ if (mi->version == 0) {
+ if (po_append(options, "vers=4") == PO_FAILED) {
+ errno = EINVAL;
+ goto out_fail;
+ }
+ }
+
if (!nfs_append_clientaddr_option(sap, mi->salen, options)) {
errno = EINVAL;
goto out_fail;
}
-
/*
* Update option string to be recorded in /etc/mtab.
*/
switch (mi->version) {
case 0:
+ if (linux_version_code() > MAKE_VERSION(2, 6, 31)) {
+ errno = 0;
+ result = nfs_try_mount_v4(mi);
+ if (errno != EPROTONOSUPPORT)
+ break;
+ }
case 2:
case 3:
result = nfs_try_mount_v3v2(mi);