[PATCH RFC v1 06/12] staging/gasket: Prepare gasket_release_page() for PG_reserved changes

[David Hildenbrand]

Right now, ZONE_DEVICE memory is always set PG_reserved. We want to
change that.

The pages are obtained via get_user_pages_fast(). I assume, these
could be ZONE_DEVICE pages. Let's just exclude them as well explicitly.

Cc: Rob Springer <rspringer at google.com>
Cc: Todd Poynor <toddpoynor at google.com>
Cc: Ben Chan <benchan at chromium.org>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: David Hildenbrand <david at redhat.com>
---
 drivers/staging/gasket/gasket_page_table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index f6d715787da8..d43fed58bf65 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -447,7 +447,7 @@ static bool gasket_release_page(struct page *page)
 	if (!page)
 		return false;
 
-	if (!PageReserved(page))
+	if (!PageReserved(page) && !is_zone_device_page(page))
 		SetPageDirty(page);
 	put_page(page);
 
-- 
2.21.0