On Wed, Apr 1, 2020 at 1:49 AM Dan Williams wrote:
>
> On Sun, Mar 29, 2020 at 10:23 PM Alastair D'Silva
> wrote:
> >
> > This driver exposes LPC memory on OpenCAPI pmem cards
> > as an NVDIMM, allowing the existing nvram infrastructure
> > to be used.
> >
> > Namespace metadata is stored on
On Sun, Mar 29, 2020 at 10:23 PM Alastair D'Silva wrote:
>
> This driver exposes LPC memory on OpenCAPI pmem cards
> as an NVDIMM, allowing the existing nvram infrastructure
> to be used.
>
> Namespace metadata is stored on the media itself, so
> scm_reserve_metadata() maps 1 section's worth of
On Sat, Mar 28, 2020 at 07:56:17PM -0700, Matthew Wilcox wrote:
> On Fri, Mar 27, 2020 at 06:11:47PM +1100, Alastair D'Silva wrote:
> > +static struct mutex minors_idr_lock;
> > +static struct idr minors_idr;
> ...
> > + mutex_lock(_idr_lock);
> > + minor = idr_alloc(_idr, ocxlpmem, 0,
On Fri, Mar 27, 2020 at 06:11:47PM +1100, Alastair D'Silva wrote:
> +static struct mutex minors_idr_lock;
> +static struct idr minors_idr;
...
> + mutex_lock(_idr_lock);
> + minor = idr_alloc(_idr, ocxlpmem, 0, NUM_MINORS, GFP_KERNEL);
> + mutex_unlock(_idr_lock);
...
> +
This driver exposes LPC memory on OpenCAPI pmem cards
as an NVDIMM, allowing the existing nvram infrastructure
to be used.
Namespace metadata is stored on the media itself, so
scm_reserve_metadata() maps 1 section's worth of PMEM storage
at the start to hold this. The rest of the PMEM range is
