[PATCH V2 linux-next] ipv4: add kernel parameter tcpmhash_entries

[Fabian Frederick]

This patch also adds a reference to ip-sysctl.txt
where TCP metrics setup is described

Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
V2: Add a reference to ip-sysctl and update description.
(suggested by Jonathan Corbet).

 Documentation/kernel-parameters.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 3c5a178..e8b25d0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3434,6 +3434,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			neutralize any effect of /proc/sys/kernel/sysrq.
 			Useful for debugging.
 
+	tcpmhash_entries= [KNL,NET]
+			Set the number of tcp_metrics_hash slots.
+			Default value is 8192 or 16384 depending on total
+			ram pages. This is used to specify the TCP metrics
+			cache size. See Documentation/networking/ip-sysctl.txt
+			"tcp_no_metrics_save" section for more details.
+
 	tdfx=		[HW,DRM]
 
 	test_suspend=	[SUSPEND][,N]
-- 
1.9.1

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