1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 309c9cec6e7c..a482fde09bbb 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -914,6 +914,10 @@ running once the system is up.
                         [NFS] set the TCP port on which the NFSv4 callback
                         channel should listen.
 
+        nfs.idmap_cache_timeout=
+                        [NFS] set the maximum lifetime for idmapper cache
+                        entries.
+
         nmi_watchdog=   [KNL,BUGS=IA-32] Debugging features for SMP kernels
 
         no387           [BUGS=IA-32] Tells the kernel to use the 387 maths