Merge pull request ceph#53126 from tengjie5/origin/tmp2

cephfs-shell: getxattr fail while the xattr's length > 256

Reviewed-by: Rishabh Dave <[email protected]>
Reviewed-by: Jos Collin <[email protected]>
Reviewed-by: Neeraj Pratap Singh <[email protected]>

Author: rishabh-d-dave

src/tools/cephfs/shell/cephfs-shell

@@ -1634,7 +1634,7 @@ class CephFSShell(Cmd):
         """
         try:
             poutput('{}'.format(cephfs.getxattr(args.path,
-                                to_bytes(args.name)).decode('utf-8')))
+                                to_bytes(args.name), size=65536).decode('utf-8')))
         except libcephfs.Error as e:
             set_exit_code_msg(msg=e)