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batman-adv: Protect global TQ window with a spinlock

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Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Linus Lüssing
2011-03-14 22:43:40 +00:00
committed by Sven Eckelmann
parent e1a5382f97
commit 68003903e4
3 changed files with 6 additions and 0 deletions
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4
net/batman-adv/routing.c
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@@ -415,10 +415,12 @@ static void update_orig(struct bat_priv *bat_priv,
if (is_duplicate)
continue;
spin_lock_bh(&tmp_neigh_node->tq_lock);
ring_buffer_set(tmp_neigh_node->tq_recv,
&tmp_neigh_node->tq_index, 0);
tmp_neigh_node->tq_avg =
ring_buffer_avg(tmp_neigh_node->tq_recv);
spin_unlock_bh(&tmp_neigh_node->tq_lock);
}
if (!neigh_node) {
@@ -443,10 +445,12 @@ static void update_orig(struct bat_priv *bat_priv,
orig_node->flags = batman_packet->flags;
neigh_node->last_valid = jiffies;
spin_lock_bh(&neigh_node->tq_lock);
ring_buffer_set(neigh_node->tq_recv,
&neigh_node->tq_index,
batman_packet->tq);
neigh_node->tq_avg = ring_buffer_avg(neigh_node->tq_recv);
spin_unlock_bh(&neigh_node->tq_lock);
if (!is_duplicate) {
orig_node->last_ttl = batman_packet->ttl;