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authorJesper Dangaard Brouer <hawk@comx.dk>2009-06-08 03:11:43 +0000
committerDavid S. Miller <davem@davemloft.net>2009-06-10 01:11:25 -0700
commiteaa184a1a1cda3991420c47bc960ddea6cbacff2 (patch)
tree609a773a114cf2efee117354c66ba2b8da811a90 /net/sctp/protocol.c
parent382bfeec48e43c416af9b271b9b70d2f61ef32d2 (diff)
downloadop-kernel-dev-eaa184a1a1cda3991420c47bc960ddea6cbacff2.zip
op-kernel-dev-eaa184a1a1cda3991420c47bc960ddea6cbacff2.tar.gz
sctp: protocol.c call rcu_barrier() on unload.
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>
Diffstat (limited to 'net/sctp/protocol.c')
-rw-r--r--net/sctp/protocol.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index cb2c50d..79cbd47 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -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);
}
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