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rhashtable: Wait for RCU readers after final unzip work

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We need to wait for all RCU readers to complete after the last bit of
unzipping has been completed. Otherwise the old table is freed up
prematurely.

Fixes: 7e1e77636e ("lib: Resizable, Scalable, Concurrent Hash Table")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2015-02-05 02:03:33 +01:00 committed by David S. Miller
parent a5ec68e3b8
commit 2af4b52988
1 changed files with 2 additions and 0 deletions
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lib/rhashtable.c
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@ -392,6 +392,8 @@ int rhashtable_expand(struct rhashtable *ht)
}
}
synchronize_rcu();
bucket_table_free(old_tbl);
return 0;
}