netdev - Re: [Patch nf v2 2/3] xt_hashlimit: reduce hashlimit_mutex scope for htable

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Message-ID: <20200207145459.cb2cxzzvz6wx6nae@salvia>
Date:   Fri, 7 Feb 2020 15:54:59 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     netdev@...r.kernel.org, fw@...len.de,
        netfilter-devel@...r.kernel.org,
        syzbot+adf6c6c2be1c3a718121@...kaller.appspotmail.com,
        Jozsef Kadlecsik <kadlec@...filter.org>
Subject: Re: [Patch nf v2 2/3] xt_hashlimit: reduce hashlimit_mutex scope for
 htable_put()

On Sun, Feb 02, 2020 at 08:30:52PM -0800, Cong Wang wrote:
> It is unnecessary to hold hashlimit_mutex for htable_destroy()
> as it is already removed from the global hashtable and its
> refcount is already zero.
> 
> Also, switch hinfo->use to refcount_t so that we don't have
> to hold the mutex until it reaches zero in htable_put().

Applied, thanks.