Tejun Heo wrote:
> Hello,
>
> Cornelia Huck wrote:
>> =======================================================
>> [ INFO: possible circular locking dependency detected ]
>> 2.6.21-rc6-ge666c753-dirty #54
>> -------------------------------------------------------
>> kslowcrw/64 is trying to acquire lock:
>> (&sch->reg_mutex){--..}, at: [<00000000004233b2>] mutex_lock+0x3e/0x4c
>>
>> but task is already holding lock:
>> (&sd->s_active){----}, at: [<0000000000209578>] remove_dir+0xec/0x144
>>
>> which lock already depends on the new lock.
>
> This is probably because s_active has different write locked and
> unlocked by different threads but it doesn't tell lockdep about it.
s/has different/is/
Sorry.
--
tejun
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