diff options
Diffstat (limited to 'drivers/block/brd.c')
| -rw-r--r-- | drivers/block/brd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 57b574f2f66a..f2a7ac350f6a 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -22,6 +22,7 @@ #ifdef CONFIG_BLK_DEV_RAM_DAX #include <linux/pfn_t.h> #include <linux/dax.h> +#include <linux/uio.h> #endif #include <linux/uaccess.h> @@ -354,8 +355,15 @@ static long brd_dax_direct_access(struct dax_device *dax_dev, return __brd_direct_access(brd, pgoff, nr_pages, kaddr, pfn); } +static size_t brd_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, + void *addr, size_t bytes, struct iov_iter *i) +{ + return copy_from_iter(addr, bytes, i); +} + static const struct dax_operations brd_dax_ops = { .direct_access = brd_dax_direct_access, + .copy_from_iter = brd_dax_copy_from_iter, }; #endif |