Re: [PATCH RFC] statx.2: Add stx_atomic_write_unit_max_opt

[John Garry]

On 04/04/2025 10:06, Christoph Hellwig wrote:
> On Thu, Apr 03, 2025 at 04:07:04PM +0100, John Garry wrote:
> > So I am thinking one of these:
> > a. stx_atomic_write_unit_max_dev
> > b. stx_atomic_write_unit_max_bdev
> > c. stx_atomic_write_unit_max_align
> > d. stx_atomic_write_unit_max_hw
> >
> > The terms dev (or device) and bdev are already used in the meaning of some
> > members in struct statx, so not too bad. However, when we support large
> > atomic writes for XFS rtvol, the bdev atomic write limit and rtextsize
> > would influence this value (so just bdev might be a bit misleading in the
> > name).
>
> Don't.  Especially when you have a natively out of write file system
> that optimized case will not involve the usual hardware offload.
stx_atomic_write_unit_max_opt it is then.

Or stx_atomic_write_unit_max_optimal or stx_atomic_write_unit_max_fast. 
Or similar..

cheers,
John