On 9/12/19 1:26 AM, Christoph Hellwig wrote:
On Wed, Sep 11, 2019 at 03:28:27PM -0700, Ralph Campbell wrote:
Allow hmm_range_fault() to return success (0) when the CPU pagetable
entry points to the special shared zero page.
The caller can then handle the zero page by possibly clearing device
pr
On Wed, Sep 11, 2019 at 03:28:27PM -0700, Ralph Campbell wrote:
> Allow hmm_range_fault() to return success (0) when the CPU pagetable
> entry points to the special shared zero page.
> The caller can then handle the zero page by possibly clearing device
> private memory instead of DMAing a zero pag
Allow hmm_range_fault() to return success (0) when the CPU pagetable
entry points to the special shared zero page.
The caller can then handle the zero page by possibly clearing device
private memory instead of DMAing a zero page.
Signed-off-by: Ralph Campbell
Cc: "Jérôme Glisse"
Cc: Jason Guntho
