1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index b5ffe8fa291f..79796521cfdc 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -199,6 +199,10 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh)
                 goto out;
         }
 
+        if (fattr->valid & NFS_ATTR_FATTR_FSID &&
+            !nfs_fsid_equal(&server->fsid, &fattr->fsid))
+                memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));
+
         inode = nfs_fhget(sb, mntfh, fattr);
         if (IS_ERR(inode)) {
                 dprintk("nfs_get_root: get root inode failed\n");