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authorMarek Lindner <[email protected]>2011-02-10 14:33:49 +0000
committerMarek Lindner <[email protected]>2011-03-05 12:50:04 +0100
commit25b6d3c17eaa92ae9700eb8235bc79782613354a (patch)
tree1c9949a6adf8144f77b91e9f3a785d0557525f39 /tools/perf/scripts/python/net_dropmonitor.py
parent44524fcdf6ca19b58c24f7622c4af1d8d8fe59f8 (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 <[email protected]> Signed-off-by: Marek Lindner <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
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