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Date:   Mon, 01 Apr 2019 18:11:05 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCHv2 net-next] net: use rcu_dereference_protected to fetch
 sk_dst_cache in sk_destruct

From: Xin Long <>
Date: Sun, 31 Mar 2019 17:03:02 +0800

> As Eric noticed, in .sk_destruct, sk->sk_dst_cache update is prevented, and
> no barrier is needed for this. So change to use rcu_dereference_protected()
> instead of rcu_dereference_check() to fetch sk_dst_cache in there.
> v1->v2:
>   - no change, repost after net-next is open.
> Reported-by: Eric Dumazet <>
> Signed-off-by: Xin Long <>

Applied, thanks.

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