> From: Lu Baolu <[email protected]> > Sent: Wednesday, June 29, 2022 3:47 PM > > Using a global device_domain_lock spinlock to protect per-domain device > tracking lists is an inefficient way, especially considering this lock > is also needed in the hot paths. This optimizes the locking mechanism > by converting the global lock to per domain lock. > > On the other hand, as the device tracking lists are never accessed in > any interrupt context, there is no need to disable interrupts while > spinning. Replace irqsave variant with spinlock calls. > > Signed-off-by: Lu Baolu <[email protected]>
except the previous comment on where to convert spin_lock_irqsave() the rest looks good to me. Reviewed-by: Kevin Tian <[email protected]> _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
