From: David Miller <davem@davemloft.net>
To: roy.qing.li@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH next-net] ipv6: Use hlist_for_each_entry_rcu_bh() in ipv6_chk_same_addr()
Date: Tue, 01 Nov 2011 03:53:23 -0400 (EDT) [thread overview]
Message-ID: <20111101.035323.458528114788135444.davem@davemloft.net> (raw)
In-Reply-To: <1320125455-25222-1-git-send-email-roy.qing.li@gmail.com>
From: roy.qing.li@gmail.com
Date: Tue, 1 Nov 2011 13:30:55 +0800
> From: RongQing.Li <roy.qing.li@gmail.com>
>
> Replace hlist_for_each_entry and hlist_for_each_entry_rcu with
> hlist_for_each_entry_rcu_bh() in ipv6_chk_same_addr and
> ipv6_chk_addr to keep that all dereference methods for addr_list
> are same, and take advantage of _rcu_bh() critical section
> checking and prevention from compiler merging or refetching.
>
> Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Callers are already in an RCU section with BH disabled when these
functions are invoked.
next prev parent reply other threads:[~2011-11-01 7:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-01 5:30 [PATCH next-net] ipv6: Use hlist_for_each_entry_rcu_bh() in ipv6_chk_same_addr() roy.qing.li
2011-11-01 7:53 ` David Miller [this message]
2011-11-01 8:33 ` RongQing Li
2011-11-01 8:39 ` David Miller
2011-11-01 9:05 ` RongQing Li
2011-11-01 9:06 ` David Miller
2011-11-01 9:17 ` RongQing Li
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