netdev - [PATCH net-next] neigh: document gc

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Date:	Mon, 25 Aug 2014 15:05:30 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	David Miller <davem@...emloft.net>,
	Randy Dunlap <rdunlap@...radead.org>
Cc:	netdev@...r.kernel.org, linux-doc@...r.kernel.org
Subject: [PATCH net-next] neigh: document gc_thresh2

Missing documentation for gc_thresh2 sysctl.

Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>

--- a/Documentation/networking/ip-sysctl.txt	2014-08-12 13:07:41.000000000 -0700
+++ b/Documentation/networking/ip-sysctl.txt	2014-08-22 12:19:05.020051095 -0700
@@ -65,6 +65,12 @@ neigh/default/gc_thresh1 - INTEGER
 	purge entries if there are fewer than this number.
 	Default: 128
 
+neigh/default/gc_thresh2 - INTEGER
+	Threshold when garbage collector becomes more aggressive about
+	purging entries. Entries older than 5 seconds will be cleared
+	when over this number.
+	Default: 512
+
 neigh/default/gc_thresh3 - INTEGER
 	Maximum number of neighbor entries allowed.  Increase this
 	when using large numbers of interfaces and when communicating
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