* Must use NOIO because we don't want to recurse back into the
* block or filesystem layers from page reclaim.
*
- * Cannot support XIP and highmem, because our ->direct_access
- * routine for XIP must return memory that is always addressable.
- * If XIP was reworked to use pfns and kmap throughout, this
+ * Cannot support DAX and highmem, because our ->direct_access
+ * routine for DAX must return memory that is always addressable.
+ * If DAX was reworked to use pfns and kmap throughout, this
* restriction might be able to be lifted.
*/
gfp_flags = GFP_NOIO | __GFP_ZERO;
-#ifndef CONFIG_BLK_DEV_XIP
+#ifndef CONFIG_BLK_DEV_RAM_DAX
gfp_flags |= __GFP_HIGHMEM;
#endif
page = alloc_page(gfp_flags);
return err;
}
-#ifdef CONFIG_BLK_DEV_XIP
+#ifdef CONFIG_BLK_DEV_RAM_DAX
static long brd_direct_access(struct block_device *bdev, sector_t sector,
void **kaddr, unsigned long *pfn, long size)
{
*/
return PAGE_SIZE;
}
+#else
+#define brd_direct_access NULL
#endif
static int brd_ioctl(struct block_device *bdev, fmode_t mode,
.owner = THIS_MODULE,
.rw_page = brd_rw_page,
.ioctl = brd_ioctl,
-#ifdef CONFIG_BLK_DEV_XIP
.direct_access = brd_direct_access,
-#endif
};
/*