Re: LOCKDEP warning due to ext_devt_lock

2015-06-02 Thread NeilBrown
On Wed, 27 May 2015 21:32:21 -0600 Jens Axboe wrote: > On 05/27/2015 08:32 PM, NeilBrown wrote: > > > > Hi Keith, > > I'm getting lockdep warning around use of ext_devt_lock. > > > > [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. > > > > As you say in > > 2da78092dda

LOCKDEP warning due to ext_devt_lock

2015-06-02 Thread NeilBrown
Hi Keith, I'm getting lockdep warning around use of ext_devt_lock. [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. As you say in 2da78092dda1 ("block: Fix dev_t minor allocation lifetime") ext_devt_lock can be taken from call_rcu's soft-irq. I think that means it should

Re: LOCKDEP warning due to ext_devt_lock

2015-05-28 Thread Jens Axboe
On 05/27/2015 09:45 PM, NeilBrown wrote: On Wed, 27 May 2015 21:32:21 -0600 Jens Axboe wrote: On 05/27/2015 08:32 PM, NeilBrown wrote: Hi Keith, I'm getting lockdep warning around use of ext_devt_lock. [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. As you say in

Re: LOCKDEP warning due to ext_devt_lock

2015-05-27 Thread NeilBrown
On Wed, 27 May 2015 21:32:21 -0600 Jens Axboe wrote: > On 05/27/2015 08:32 PM, NeilBrown wrote: > > > > Hi Keith, > > I'm getting lockdep warning around use of ext_devt_lock. > > > > [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. > > > > As you say in > > 2da78092dda

Re: LOCKDEP warning due to ext_devt_lock

2015-05-27 Thread Jens Axboe
On 05/27/2015 08:32 PM, NeilBrown wrote: Hi Keith, I'm getting lockdep warning around use of ext_devt_lock. [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. As you say in 2da78092dda1 ("block: Fix dev_t minor allocation lifetime") ext_devt_lock can be taken from cal

LOCKDEP warning due to ext_devt_lock

2015-05-27 Thread NeilBrown
Hi Keith, I'm getting lockdep warning around use of ext_devt_lock. [11428.266019] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. As you say in 2da78092dda1 ("block: Fix dev_t minor allocation lifetime") ext_devt_lock can be taken from call_rcu's soft-irq. I think that means it should