NFS: "[no]resvport" mount option changes mountd client too

If the admin has specified the "noresvport" option for an NFS mount
point, the kernel's NFS client uses an unprivileged source port for
the main NFS transport.  The kernel's mountd client should use an
unprivileged port in this case as well.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 7e37113d37e3..ca905a5bb1ba 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -50,7 +50,6 @@ int nfs_mount(struct nfs_mount_request *info)
                 .program        = &mnt_program,
                 .version        = info->version,
                 .authflavor     = RPC_AUTH_UNIX,
-                .flags          = 0,
         };
         struct rpc_clnt         *mnt_clnt;
         int                     status;
@@ -59,6 +58,9 @@ int nfs_mount(struct nfs_mount_request *info)
                 (info->hostname ? info->hostname : "server"),
                         info->dirpath);
 
+        if (info->noresvport)
+                args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
+
         mnt_clnt = rpc_create(&args);
         if (IS_ERR(mnt_clnt))
                 goto out_clnt_err;