Despite its name copy_user_page expected kernel addresses, which is what we already have. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- fs/dax.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/dax.c b/fs/dax.c index 4e3e5a283a916..73bd1439d8089 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -728,7 +728,7 @@ static int copy_cow_page_dax(struct block_device *bdev, struct dax_device *dax_d return rc; } vto = kmap_atomic(to); - copy_user_page(vto, (void __force *)kaddr, vaddr, to); + copy_user_page(vto, kaddr, vaddr, to); kunmap_atomic(vto); dax_read_unlock(id); return 0; -- 2.30.2