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



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@xxxxxxxxxx>
Cc: Todd Poynor <toddpoynor@xxxxxxxxxx>
Cc: Ben Chan <benchan@xxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
 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


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