Re: [PATCH 1/2] fs: add a FMODE_ flag to indicate IOCB_HAS_METADATA availability

On Thu, Aug 21, 2025 at 10:42:13AM +0200, Christoph Hellwig wrote:

On Wed, Aug 20, 2025 at 11:40:36AM +0200, Christian Brauner wrote:

quoted

I meant something like this which should effectively be the same thing
just that we move the burden of having to use two bits completely into
file->f_iocb_flags instead of wasting a file->f_mode bit:

Yeah, that could work.  But I think the double use of f_iocb_flags is
a bit confusing.  Another option at least for this case would be to
have a FOP_ flag, and then check inside the operation if it is supported
for this particular instance.

Do you want to try something like that? Maybe we can do this for other
FMODE_*-based IOCB_* opt{in,outs}?