[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>
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@ -1383,6 +1383,9 @@ void nf_conntrack_cleanup(void)
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schedule();
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goto i_see_dead_people;
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}
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/* wait until all references to nf_conntrack_untracked are dropped */
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while (atomic_read(&nf_conntrack_untracked.ct_general.use) > 1)
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schedule();
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for (i = 0; i < NF_CT_F_NUM; i++) {
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if (nf_ct_cache[i].use == 0)
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