net-NOHZ-local_softirq_pending-with-tickless.patch

From 83223c8a8a1601f6287b0469d9484984758a8cdb Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Date: Fri, 3 Jul 2009 08:30:10 -0500
Subject: [PATCH] net: NOHZ: local_softirq_pending with tickless

commit b6ecb93388d2dea47182a7afe3a4f4de80a6d0e6 in tip.

On one of my machines with tickless kernel and plip I get messages :

NOHZ: local_softirq_pending 08

always when using plip (on other machine with tickless kernel and plip I
get no errors). Thebug happens both on 2.6.21 and 2.6.22-rc1

This patch fixes that. Note that plip calls netif_rx neither from hardware
interrupt nor from ksoftirqd, so there is no one who would wake
ksoftirqd then. netif_tx calls only
__raise_softirq_irqoff(NET_RX_SOFTIRQ), which sets softirq bit, but
doesn't wake ksoftirqd.

[ tglx: Removed the remaining users of __raise_softirq_irqoff() as well. ]

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/core/dev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 07b9c01..99ba080 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3130,7 +3130,7 @@ out:
 
 softnet_break:
 	__get_cpu_var(netdev_rx_stat).time_squeeze++;
-	__raise_softirq_irqoff(NET_RX_SOFTIRQ);
+	raise_softirq_irqoff(NET_RX_SOFTIRQ);
 	goto out;
 }
 
-- 
1.7.0.4