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sctp: protocol.c call rcu_barrier() on unload.

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On module unload call rcu_barrier(), this is needed as synchronize_rcu()
is not strong enough.  The kmem_cache_destroy() does invoke
synchronize_rcu() but it does not provide same protection.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Dangaard Brouer 2009-06-08 03:11:43 +00:00 committed by David S. Miller
parent 382bfeec48
commit eaa184a1a1
1 changed files with 2 additions and 0 deletions
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net/sctp/protocol.c
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@ -1370,6 +1370,8 @@ SCTP_STATIC __exit void sctp_exit(void)
sctp_proc_exit();
cleanup_sctp_mibs();
rcu_barrier(); /* Wait for completion of call_rcu()'s */
kmem_cache_destroy(sctp_chunk_cachep);
kmem_cache_destroy(sctp_bucket_cachep);
}