diff options
| author | Linus Lüssing <linus.luessing@web.de> | 2011-03-14 23:43:40 +0100 |
|---|---|---|
| committer | Sven Eckelmann <sven@narfation.org> | 2011-04-17 21:11:01 +0200 |
| commit | 68003903e4eeec5288f074ff0751a381750ceb34 (patch) | |
| tree | 72577cb46c0e0aaec9edb54a496002d13650f6fb /net/batman-adv/routing.c | |
| parent | batman-adv: Make orig_node->router an rcu protected pointer (diff) | |
| download | linux-68003903e4eeec5288f074ff0751a381750ceb34.tar.xz linux-68003903e4eeec5288f074ff0751a381750ceb34.zip | |
batman-adv: Protect global TQ window with a spinlock
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>
Diffstat (limited to 'net/batman-adv/routing.c')
| -rw-r--r-- | net/batman-adv/routing.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index b7d43caaa9c8..f6c642246972 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -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; |