diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2006-09-20 12:01:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:19:54 -0700 |
| commit | 5251e2d2125407bbff0c39394a4011be9ed8b5d0 (patch) | |
| tree | 3dda0aeb90d80a2ddd0e7a4215bfe9eaa8209033 /kernel/rcupdate.c | |
| parent | 01f348484dd8509254d045e3ad49029716eca6a1 (diff) | |
[NETFILTER]: conntrack: fix race condition in early_drop
On SMP environments the maximum number of conntracks can be overpassed
under heavy stress situations due to an existing race condition.
CPU A CPU B
atomic_read() ...
early_drop() ...
... atomic_read()
allocate conntrack allocate conntrack
atomic_inc() atomic_inc()
This patch moves the counter incrementation before the early drop stage.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/rcupdate.c')
0 files changed, 0 insertions, 0 deletions