Re: [PATCH v2 9/9] iomap: Change calling convention for zeroing

[Christoph Hellwig]

On Fri, Sep 11, 2020 at 12:47:07AM +0100, Matthew Wilcox (Oracle) wrote:
> Pass the full length to iomap_zero() and dax_iomap_zero(), and have
> them return how many bytes they actually handled.  This is preparatory
> work for handling THP, although it looks like DAX could actually take
> advantage of it if there's a larger contiguous area.

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>