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Date: Mon, 5 May 2014 15:25:50 -0700
From: Andi Kleen <andi@...stfloor.org>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, tom.zanussi@...ux.intel.com,
Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 01/24] net, diet: Reduce netdev name hash table for CONFIG_BASE_SMALL
From: Andi Kleen <ak@...ux.intel.com>
Small systems typically only have two network devices, so use
hash shift 2.
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
include/net/net_namespace.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 5f9eb26..d2b8c6c 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -37,7 +37,11 @@ struct sock;
struct netns_ipvs;
+#ifdef CONFIG_BASE_SMALL
+#define NETDEV_HASHBITS 2
+#else
#define NETDEV_HASHBITS 8
+#endif
#define NETDEV_HASHENTRIES (1 << NETDEV_HASHBITS)
struct net {
--
1.9.0
--
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