Re: [PATCH 1/1] iommu/vt-d: Remove unnecessary rcu_read_locks

2019-05-27 Thread Joerg Roedel
On Mon, May 20, 2019 at 03:41:28PM +0200, Lukasz Odzioba wrote: > We use RCU's for rarely updated lists like iommus, rmrr, atsr units. > > I'm not sure why domain_remove_dev_info() in domain_exit() was surrounded > by rcu_read_lock. Lock was present before refactoring in d160aca527, > but it was

[PATCH 1/1] iommu/vt-d: Remove unnecessary rcu_read_locks

2019-05-20 Thread Lukasz Odzioba
We use RCU's for rarely updated lists like iommus, rmrr, atsr units. I'm not sure why domain_remove_dev_info() in domain_exit() was surrounded by rcu_read_lock. Lock was present before refactoring in d160aca527, but it was related to rcu list, not domain_remove_dev_info function.