On Thu, Oct 14, 2021 at 10:39:27AM -0500, Alex Sierra wrote:
From: Ralph Campbell rcampbell@nvidia.com
There are several places where ZONE_DEVICE struct pages assume a reference count == 1 means the page is idle and free. Instead of open coding this, add a helper function to hide this detail.
Signed-off-by: Ralph Campbell rcampbell@nvidia.com Signed-off-by: Alex Sierra alex.sierra@amd.com Reviewed-by: Christoph Hellwig hch@lst.de Acked-by: Theodore Ts'o tytso@mit.edu Acked-by: Darrick J. Wong djwong@kernel.org
Reviewed-by: Matthew Wilcox (Oracle) willy@infradead.org