From: Herbert Xu <[email protected]>
Date: Tue, 24 Mar 2015 09:53:17 +1100
> rhashtable: Fix sleeping inside RCU critical section in walk_stop
>
> The commit 963ecbd41a1026d99ec7537c050867428c397b89 ("rhashtable:
> Fix use-after-free in rhashtable_walk_stop") fixed a real bug
> but created another one because we may end up sleeping inside an
> RCU critical section.
>
> This patch fixes it properly by replacing the mutex with a spin
> lock that specifically protects the walker lists.
>
> Reported-by: Sasha Levin <[email protected]>
> Signed-off-by: Herbert Xu <[email protected]>
Applied, thanks everyone.
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