On Mon, May 22, 2023 at 6:20 PM Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
>
> On Fri, 19 May 2023 at 14:57, Amir Goldstein <amir73il@xxxxxxxxx> wrote:
> >
> > Extend the passthrough feature by handling asynchronous IO both for read
> > and write operations.
> >
> > When an AIO request is received, if the request targets a FUSE file with
> > the passthrough functionality enabled, a new identical AIO request is
> > created. The new request targets the backing file and gets assigned
> > a special FUSE passthrough AIO completion callback.
> >
> > When the backing file AIO request is completed, the FUSE
> > passthrough AIO completion callback is executed and propagates the
> > completion signal to the FUSE AIO request by triggering its completion
> > callback as well.
>
> Overlayfs added refcounting to the async req (commit 9a2544037600
> ("ovl: fix use after free in struct ovl_aio_req")). Is that not
> needed for fuse as well?
>
> Would it make sense to try and merge the two implementations?
>
Makes sense - I will look into it.
Thanks,
Amir.
