On Thu, Oct 01, 2020 at 11:17:15AM -0700, Ralph Campbell wrote: > ZONE_DEVICE struct pages have an extra reference count that complicates the > code for put_page() and several places in the kernel that need to check the > reference count to see that a page is not being used (gup, compaction, > migration, etc.). Clean up the code so the reference count doesn't need to > be treated specially for ZONE_DEVICE. > > Signed-off-by: Ralph Campbell <rcampbell@xxxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>
