# \[PATCH v2 3/3\] drivers/block/z2ram: use ioremap\_wt() instead of \_\_ioremap(\_PAGE\_WRITETHRU)

- From: Christophe Leroy \<hidden\>
- Date: 2018-08-27 16:10:35 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2018/08/5364652
- Thread: https://ratatoskr.run/linuxppc-dev/2018/08/5364650/t.md

```text
_PAGE_WRITETHRU is a target specific flag. Prefer generic functions.

Signed-off-by: Christophe Leroy <redacted>
---
 v2: no change

 drivers/block/z2ram.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index d0c5bc4e0703..cfbd70520eeb 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -190,8 +190,7 @@ static int z2_open(struct block_device *bdev, fmode_t mode)
 			vfree(vmalloc (size));
 		}
 
-		vaddr = (unsigned long) __ioremap (paddr, size, 
-						   _PAGE_WRITETHRU);
+		vaddr = (unsigned long)ioremap_wt(paddr, size);
 
 #else
 		vaddr = (unsigned long)z_remap_nocache_nonser(paddr, size);
-- 
2.13.3
```