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libnvdimm, namespace: expand pmem device naming scheme for multi-pmem 

pmem devices are currently named /dev/pmem<region-index>. Preserve the
naming of the 0th device, but add a ".<namespace-index>" for other
devices.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-10-05 09:09:44 -07:00
parent a1f3e4d6a0
commit 012207334a
1 changed files with 15 additions and 1 deletions
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16
drivers/nvdimm/namespace_devs.c
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@ -173,7 +173,21 @@ const char *nvdimm_namespace_disk_name(struct nd_namespace_common *ndns,
suffix = "s";
if (is_namespace_pmem(&ndns->dev) || is_namespace_io(&ndns->dev)) {
sprintf(name, "pmem%d%s", nd_region->id, suffix ? suffix : "");
int nsidx = 0;
if (is_namespace_pmem(&ndns->dev)) {
struct nd_namespace_pmem *nspm;
nspm = to_nd_namespace_pmem(&ndns->dev);
nsidx = nspm->id;
}
if (nsidx)
sprintf(name, "pmem%d.%d%s", nd_region->id, nsidx,
suffix ? suffix : "");
else
sprintf(name, "pmem%d%s", nd_region->id,
suffix ? suffix : "");
} else if (is_namespace_blk(&ndns->dev)) {
struct nd_namespace_blk *nsblk;