Re: [PATCH v8 4/7] fsdax: Add dax_iomap_cow_copy() for dax_iomap_zero

On Sun, Aug 29, 2021 at 08:25:14PM +0800, Shiyang Ruan wrote: > Punch hole on a reflinked file needs dax_iomap_cow_copy() too. > Otherwise, data in not aligned area will be not correct. So, add the > srcmap to dax_iomap_zero() and replace memset() as dax_iomap_cow_copy(). > > Signed-off-by:

[PATCH v8 4/7] fsdax: Add dax_iomap_cow_copy() for dax_iomap_zero

Punch hole on a reflinked file needs dax_iomap_cow_copy() too. Otherwise, data in not aligned area will be not correct. So, add the srcmap to dax_iomap_zero() and replace memset() as dax_iomap_cow_copy(). Signed-off-by: Shiyang Ruan Reviewed-by: Ritesh Harjani Reviewed-by: Darrick J. Wong ---