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Date: Thu, 19 Jan 2017 11:09:46 -0500 (EST) From: David Miller <davem@...emloft.net> To: wangkefeng.wang@...wei.com Cc: kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org, kaber@...sh.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, dingtianhong@...wei.com, weiyongjun1@...wei.com, guohanjun@...wei.com Subject: Re: [PATCH] ipv6: addrconf: Avoid addrconf_disable_change() using RCU read-side lock From: Kefeng Wang <wangkefeng.wang@...wei.com> Date: Thu, 19 Jan 2017 16:26:21 +0800 > Just like commit 4acd4945cd1e ("ipv6: addrconf: Avoid calling > netdevice notifiers with RCU read-side lock"), it is unnecessary > to make addrconf_disable_change() use RCU iteration over the > netdev list, since it already holds the RTNL lock, or we may meet > Illegal context switch in RCU read-side critical section. > > Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com> Applied and queued up for -stable, thanks.
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