| commit | 25b6d3c17eaa92ae9700eb8235bc79782613354a | [log] [tgz] |
|---|---|---|
| author | Marek Lindner <lindner_marek@yahoo.de> | Thu Feb 10 14:33:49 2011 +0000 |
| committer | Marek Lindner <lindner_marek@yahoo.de> | Sat Mar 05 12:50:04 2011 +0100 |
| tree | 1c9949a6adf8144f77b91e9f3a785d0557525f39 | |
| parent | 44524fcdf6ca19b58c24f7622c4af1d8d8fe59f8 [diff] |
batman-adv: Correct rcu refcounting for gw_node It might be possible that 2 threads access the same data in the same rcu grace period. The first thread calls call_rcu() to decrement the refcount and free the data while the second thread increases the refcount to use the data. To avoid this race condition all refcount operations have to be atomic. Reported-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>