From fb778ea173fcd58b8fc3d75c674f07fab187b55f Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Wed, 19 Jan 2011 20:01:40 +0000
Subject: batman-adv: protect each hash row with rcu locks

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/icmp_socket.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'net/batman-adv/icmp_socket.c')

diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 319a7ccf6efa..8e0cd8a1bc02 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -220,9 +220,11 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
 		goto dst_unreach;
 
 	spin_lock_bh(&bat_priv->orig_hash_lock);
+	rcu_read_lock();
 	orig_node = ((struct orig_node *)hash_find(bat_priv->orig_hash,
 						   compare_orig, choose_orig,
 						   icmp_packet->dst));
+	rcu_read_unlock();
 
 	if (!orig_node)
 		goto unlock;
-- 
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