NFSv4: Cache the NFSv4/v4.1 client owner_id in the struct nfs_client

Ensure that we cache the NFSv4/v4.1 client owner_id so that we can
verify it when we're doing trunking detection.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 1e37fbb78f7a..ddea982355f3 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -74,6 +74,9 @@ struct nfs_client {
         /* idmapper */
         struct idmap *          cl_idmap;
 
+        /* Client owner identifier */
+        const char *            cl_owner_id;
+
         /* Our own IP address, as a null-terminated string.
          * This is used to generate the mv0 callback address.
          */