Re: [PATCH v5 1/2] mm/mmu_notifier: make interval notifier updates safe
From: Jason Gunthorpe
Date: Tue Jan 14 2020 - 07:45:32 EST
On Mon, Jan 13, 2020 at 02:44:52PM -0800, Ralph Campbell wrote:
> I'm using the device driver lock to serialize find/insert/update/remove
> changes to the interval tree.
The device driver lock can't really fully serialize this as it doesn't
effect how the intersection lookup runs.
Jason