> -Original Message-
> Subject: Re: [PATCH v5 2/9] dax: Introduce holder for dax_device
>
> On Mon, Jun 28, 2021 at 08:02:11AM +0800, Shiyang Ruan wrote:
> > +int dax_holder_notify_failure(struct dax_device *dax_dev, loff_t offset,
> > + size_t size, void *data)
> >
On Mon, Jun 28, 2021 at 08:02:11AM +0800, Shiyang Ruan wrote:
> +int dax_holder_notify_failure(struct dax_device *dax_dev, loff_t offset,
> + size_t size, void *data)
> +{
> + int rc = -ENXIO;
> + if (!dax_dev)
> + return rc;
> +
> + if (dax_dev->ho
To easily track filesystem from a pmem device, we introduce a holder for
dax_device structure, and also its operation. This holder is used to
remember who is using this dax_device:
- When it is the backend of a filesystem, the holder will be the
superblock of this filesystem.
- When this pmem
