On Tue, Oct 31, 2017 at 04:22:56PM -0700, Dan Williams wrote:
> Add hashed waitqueue infrastructure to wait for ZONE_DEVICE pages to
> drop their reference counts and be considered idle for DMA. This
> facility will be used for filesystem callbacks / wakeups when DMA to a
> DAX mapped range of a fi
Add hashed waitqueue infrastructure to wait for ZONE_DEVICE pages to
drop their reference counts and be considered idle for DMA. This
facility will be used for filesystem callbacks / wakeups when DMA to a
DAX mapped range of a file ends.
For now, this implementation does not have functional behavi