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| author | Jarek Poplawski <jarkao2@gmail.com> | 2009-01-20 14:08:23 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-24 16:36:19 -0800 |
| commit | c20cba0d08f3c6c10e0181077cca7f1833ffdb6b (patch) | |
| tree | 657d8c37972be1c293bd0094f14d6668c93814ef /scripts/patch-kernel | |
| parent | 82e1a122a1b01eef12fccecde30b7e7fbf4ece0e (diff) | |
pkt_sched: cls_u32: Fix locking in u32_change()
[ Upstream commit: 6f57321422e0d359e83c978c2b03db77b967b7d5 ]
New nodes are inserted in u32_change() under rtnl_lock() with wmb(),
so without tcf_tree_lock() like in other classifiers (e.g. cls_fw).
This isn't enough without rmb() on the read side, but on the other
hand adding such barriers doesn't give any savings, so the lock is
added instead.
Reported-by: m0sia <m0sia@plotinka.ru>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions