netdev - [PATCH 1/2] bridge: Adjust min age inc for HZ

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Message-Id: <1330625539-10247-1-git-send-email-Joakim.Tjernlund@transmode.se>
Date:	Thu, 1 Mar 2012 19:12:18 +0100
From:	Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
To:	netdev@...r.kernel.org
Cc:	Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
Subject: [PATCH 1/2] bridge: Adjust min age inc for HZ > 256

min age increment needs to round up its min age tick for all
HZ values to guarantee message age is increasing.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@...nsmode.se>
---

The bridge list seems very slow so try netdev instead.

 net/bridge/br_stp.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index a04eeb6..9a8aebd 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -17,9 +17,9 @@
 #include "br_private_stp.h"
 
 /* since time values in bpdu are in jiffies and then scaled (1/256)
- * before sending, make sure that is at least one.
+ * before sending, make sure that is at least one STP tick.
  */
-#define MESSAGE_AGE_INCR	((HZ < 256) ? 1 : (HZ/256))
+#define MESSAGE_AGE_INCR	((HZ / 256) + 1)
 
 static const char *const br_port_state_names[] = {
 	[BR_STATE_DISABLED] = "disabled",
-- 
1.7.3.4

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