[RFC PATCH -next v3 07/10] fs: introduce FALLOC_FL_WRITE_ZEROES to fallocate

[Christian Brauner]

On Wed, Apr 09, 2025 at 12:35:48PM +0200, Christoph Hellwig wrote:
> On Tue, Mar 18, 2025 at 03:35:42PM +0800, Zhang Yi wrote:
> > Users can check the disk support of unmap write zeroes command by
> > querying:
> > 
> >     /sys/block/<disk>/queue/write_zeroes_unmap
> 
> No, that is not in any way a good user interface.  Users need to be
> able to query this on a per-file basis.

Agreed. This should get a statx attribute most likely.