> >
> > This patch adds prefix 'v' in disk name for virtio pmem.
> > This differentiates virtio-pmem disks from the pmem disks.
>
> I don't think the small matter that this device does not support
> MAP_SYNC warrants a separate naming scheme. That said I do think we
> need to export this attribute in sysfs, likely at the region level,
> and then display that information in ndctl. This is distinct from the
> btt case where it is operating a different data consistency contract
> than baseline pmem.
o.k. I will look to add the information in sysfs and display using ndctl.
Thanks,
Pankaj
> >
> > Signed-off-by: Pankaj Gupta <pagu...@redhat.com>
> > ---
> > drivers/nvdimm/namespace_devs.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/nvdimm/namespace_devs.c
> > b/drivers/nvdimm/namespace_devs.c
> > index a16e52251a30..8e5d29266fb0 100644
> > --- a/drivers/nvdimm/namespace_devs.c
> > +++ b/drivers/nvdimm/namespace_devs.c
> > @@ -182,8 +182,12 @@ const char *nvdimm_namespace_disk_name(struct
> > nd_namespace_common *ndns,
> > char *name)
> > {
> > struct nd_region *nd_region = to_nd_region(ndns->dev.parent);
> > + const char *prefix = "";
> > const char *suffix = NULL;
> >
> > + if (!is_nvdimm_sync(nd_region))
> > + prefix = "v";
> > +
> > if (ndns->claim && is_nd_btt(ndns->claim))
> > suffix = "s";
> >
> > @@ -201,7 +205,7 @@ const char *nvdimm_namespace_disk_name(struct
> > nd_namespace_common *ndns,
> > sprintf(name, "pmem%d.%d%s", nd_region->id, nsidx,
> > suffix ? suffix : "");
> > else
> > - sprintf(name, "pmem%d%s", nd_region->id,
> > + sprintf(name, "%spmem%d%s", prefix, nd_region->id,
> > suffix ? suffix : "");
> > } else if (is_namespace_blk(&ndns->dev)) {
> > struct nd_namespace_blk *nsblk;
> > --
> > 2.20.1
> >
>
