This is a note to let you know that I've just added the patch titled
net-rps: Fix brokeness causing OOO packets
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-rps-fix-brokeness-causing-ooo-packets.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 04bf57cf63408af7f9e5bf1151f541ac08d0bff8 Mon Sep 17 00:00:00 2001
From: Tom Herbert <[email protected]>
Date: Fri, 16 Nov 2012 09:04:15 +0000
Subject: net-rps: Fix brokeness causing OOO packets
From: Tom Herbert <[email protected]>
[ Upstream commit baefa31db2f2b13a05d1b81bdf2d20d487f58b0a ]
In commit c445477d74ab3779 which adds aRFS to the kernel, the CPU
selected for RFS is not set correctly when CPU is changing.
This is causing OOO packets and probably other issues.
Signed-off-by: Tom Herbert <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Acked-by: Ben Hutchings <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/core/dev.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2706,8 +2706,10 @@ static int get_rps_cpu(struct net_device
if (unlikely(tcpu != next_cpu) &&
(tcpu == RPS_NO_CPU || !cpu_online(tcpu) ||
((int)(per_cpu(softnet_data, tcpu).input_queue_head -
- rflow->last_qtail)) >= 0))
+ rflow->last_qtail)) >= 0)) {
+ tcpu = next_cpu;
rflow = set_rps_cpu(dev, skb, rflow, next_cpu);
+ }
if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) {
*rflowp = rflow;
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/net-rps-fix-brokeness-causing-ooo-packets.patch
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