tree 524b3bfee593f20a52fab80c7bb4da3ac0ad3ad8
parent d04b4f8c1c9766e49fad6a141fc61cb30db69a5c
author Patrick McHardy <[EMAIL PROTECTED]> Sat, 23 Jul 2005 02:51:03 -0700
committer David S. Miller <[EMAIL PROTECTED]> Sat, 23 Jul 2005 02:51:03 -0700
[NETFILTER]: Wait until all references to ip_conntrack_untracked are dropped on
unload
Fixes a crash when unloading ip_conntrack.
Signed-off-by: Patrick McHardy <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
net/ipv4/netfilter/ip_conntrack_core.c | 3 +++
1 files changed, 3 insertions(+)
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c
b/net/ipv4/netfilter/ip_conntrack_core.c
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -1107,6 +1107,9 @@ void ip_conntrack_cleanup(void)
schedule();
goto i_see_dead_people;
}
+ /* wait until all references to ip_conntrack_untracked are dropped */
+ while (atomic_read(&ip_conntrack_untracked.ct_general.use) > 1)
+ schedule();
kmem_cache_destroy(ip_conntrack_cachep);
kmem_cache_destroy(ip_conntrack_expect_cachep);
-
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