From: Thomas Graf <tgraf@xxxxxxx>
Date: Mon, 12 Jan 2015 23:58:21 +0000
> Each per bucket lock covers a configurable number of buckets. While
> shrinking, two buckets in the old table contain entries for a single
> bucket in the new table. We need to lock down both while linking.
> Check if they are protected by different locks to avoid a recursive
> lock.
>
> Fixes: 97defe1e ("rhashtable: Per bucket locks & deferred expansion/shrinking")
> Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> Signed-off-by: Thomas Graf <tgraf@xxxxxxx>
Applied.
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