re-enable IOCB_NOWAIT writes to files v4

[Christian Brauner]

On Tue, Jan 06, 2026 at 07:24:09AM +0100, Christoph Hellwig wrote:
> > Applied to the vfs-7.0.nonblocking_timestamps branch of the vfs/vfs.git tree.
> > Patches in the vfs-7.0.nonblocking_timestamps branch should appear in linux-next soon.
> 
> Umm, as in my self reply just before heading out for vacation, Julia
> found issues in it using static type checking tools.  I have a new
> version that fixes that and sorts out the S_* mess.  So please drop
> it again for now, I'll resend the fixed version ASAP.

It has never been pushed nor applied as I saw your mail right before all
of that.