Date: Fri, 14 Nov 2014 13:59:10 +0900
From: Ryota Ozaki
Related to mutex I have two questions:
- If we really want to alloc an object with holding a mutex,
what should we do? use pool(9)? or we should avoid such a situation?
Preallocate before you acquire the lock. See the kmem
On Fri, Nov 14, 2014 at 4:42 PM, Taylor R Campbell
wrote:
>Date: Fri, 14 Nov 2014 13:59:10 +0900
>From: Ryota Ozaki
>
>Related to mutex I have two questions:
>- If we really want to alloc an object with holding a mutex,
> what should we do? use pool(9)? or we should avoid suc
>> Otherwise (and even so), someone is likely to remove the kernel lock
>> without understanding the constraints and wind up with an interrupt
>> handler on cpu0 munging the ifnet list at the same time as a thread on
>> cpu1.
>>
>>Anyway we should get rid of calling m_reclaim in hardware interr
