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[NETFILTER]: Wait for untracked references in nf_conntrack module unload 

Noticed by Pablo Neira <pablo@eurodev.net>.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Patrick McHardy 2005-12-05 13:36:50 -08:00 committed by David S. Miller
parent a795756333
commit 6636568cf8
1 changed files with 3 additions and 0 deletions
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3
net/netfilter/nf_conntrack_core.c
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@ -1383,6 +1383,9 @@ void nf_conntrack_cleanup(void)
schedule();
goto i_see_dead_people;
}
/* wait until all references to nf_conntrack_untracked are dropped */
while (atomic_read(&nf_conntrack_untracked.ct_general.use) > 1)
schedule();
for (i = 0; i < NF_CT_F_NUM; i++) {
if (nf_ct_cache[i].use == 0)