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Diffstat (limited to 'drivers/nvdimm/namespace_devs.c')
| -rw-r--r-- | drivers/nvdimm/namespace_devs.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 2c50a0719f8d..4aa647c8d644 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -76,6 +76,30 @@ static bool is_namespace_io(struct device *dev) return dev ? dev->type == &namespace_io_device_type : false; } +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 *suffix = ""; + + if (ndns->claim && is_nd_btt(ndns->claim)) + suffix = "s"; + + if (is_namespace_pmem(&ndns->dev) || is_namespace_io(&ndns->dev)) + sprintf(name, "pmem%d%s", nd_region->id, suffix); + else if (is_namespace_blk(&ndns->dev)) { + struct nd_namespace_blk *nsblk; + + nsblk = to_nd_namespace_blk(&ndns->dev); + sprintf(name, "ndblk%d.%d%s", nd_region->id, nsblk->id, suffix); + } else { + return NULL; + } + + return name; +} +EXPORT_SYMBOL(nvdimm_namespace_disk_name); + static ssize_t nstype_show(struct device *dev, struct device_attribute *attr, char *buf) { |