rhashtable: Add barrier to ensure we see new tables in walker
authorHerbert Xu <herbert@gondor.apana.org.au>
Mon, 23 Mar 2015 13:50:19 +0000 (00:50 +1100)
committerDavid S. Miller <davem@davemloft.net>
Tue, 24 Mar 2015 02:07:51 +0000 (22:07 -0400)
commitd88252f9bb74d266653542b753f9ab404e8b88db
tree80d4a55b46bfbe2e93748cab6345b5dd678a4b6b
parente167359be0c7d856445aa97e1bf82b5a55eb55b2
rhashtable: Add barrier to ensure we see new tables in walker

The walker is a lockless reader so it too needs an smp_rmb before
reading the future_tbl field in order to see any new tables that
may contain elements that we should have walked over.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
lib/rhashtable.c