Re: [PATCH v4 01/26] mm/mmu_notifiers: pass private data down to alloc_notifier()
From: Jason Gunthorpe <jgg@ziepe.ca>
Date: 2020-03-17 18:40:42
Also in:
linux-devicetree, linux-iommu, linux-mm, linux-pci
On Mon, Mar 16, 2020 at 08:46:59AM -0700, Christoph Hellwig wrote:
On Fri, Mar 06, 2020 at 09:09:19AM -0400, Jason Gunthorpe wrote:quoted
This is why release must do invalidate all - but it doesn't need to do any more - as no SPTE can be established without a mmget() - and mmget() is no longer possible past release.Maybe we should rename the release method to invalidate_all?
It is a better name. The function it must also fence future access if the mirror is not using mmget(), and stop using the pgd/etc pointer if the page tables are accessed directly. Jason _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel