Re: [PATCH 2/2] [RFC] cpuset: Fix potential deadlock w/ set_mems_allowed

2013-09-14 Thread Li Zefan
Cc Mel, who added seqcount to cpuset. On 2013/9/14 8:19, John Stultz wrote: > After adding lockdep support to seqlock/seqcount structures, > I started seeing the following warning: > > [1.070907] == > [1.072015] [ INFO: SOFTIRQ-safe -> S

[PATCH 2/2] [RFC] cpuset: Fix potential deadlock w/ set_mems_allowed

2013-09-13 Thread John Stultz
After adding lockdep support to seqlock/seqcount structures, I started seeing the following warning: [1.070907] == [1.072015] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ] [1.073181] 3.11.0+ #67 Not tainted [1.07380