Re: [PATCH v6 3/3] xfs: add support for FALLOC_FL_WRITE_ZEROES

On Thu, Jun 25, 2026 at 07:16:47PM +0800, Zhang Yi wrote:
> I've thought about this more and feel that we need to add one more
> scenario here:
> 
> 3) If the blocks at the boundaries are in dirty unwritten or in delay
>    allocated state, it should be handled the same way as scenario 2.
>    Additionally, before returning, we need to flush these two boundary
>    blocks that have been partially zeroed, to ensure that after
>    FALLOC_FL_WRITE_ZEROES, all ranges are in the written state.
> 
> What do you think?

Yes.  Can you send an xfstest addition the exercises these corner
cases?