mm: remove the unused MIGRATE_PFN_DEVICE flag
No one ever checks this flag, and we could easily get that information
from the page if needed.
Link: https://lore.kernel.org/r/20190814075928.23766-10-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
diff --git a/mm/migrate.c b/mm/migrate.c
index 8111e03..f4f5ae5 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2237,8 +2237,8 @@ static int migrate_vma_collect_pmd(pmd_t *pmdp,
goto next;
page = device_private_entry_to_page(entry);
- mpfn = migrate_pfn(page_to_pfn(page))|
- MIGRATE_PFN_DEVICE | MIGRATE_PFN_MIGRATE;
+ mpfn = migrate_pfn(page_to_pfn(page)) |
+ MIGRATE_PFN_MIGRATE;
if (is_write_device_private_entry(entry))
mpfn |= MIGRATE_PFN_WRITE;
} else {