On Wed, Mar 26, 2025 at 02:14:59AM +0000, Matthew Wilcox wrote: > So, there's no need to put DEVICE_PRIVATE pages in the page cache. > Instead the GPU will take a copy of the page(s). We agreed that there > will have to be some indication (probably a folio flag?) that the GPU has > or may have a copy of (some of) the folio so that it can be invalidated > if the page is removed due to truncation / eviction. Sounds like layout leases used for pnfs.
