1 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index d84932650fd3..c7712787933c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -27,6 +27,12 @@ min_adv_mss - INTEGER
         The advertised MSS depends on the first hop route MTU, but will
         never be lower than this setting.
 
+rt_cache_rebuild_count - INTEGER
+        The per net-namespace route cache emergency rebuild threshold.
+        Any net-namespace having its route cache rebuilt due to
+        a hash bucket chain being too long more than this many times
+        will have its route caching disabled
+
 IP Fragmentation:
 
 ipfrag_high_thresh - INTEGER