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authorDan Williams <dan.j.williams@intel.com>2015-05-30 12:35:36 -0400
committerDan Williams <dan.j.williams@intel.com>2015-06-24 21:24:10 -0400
commit0ba1c634892b3590779803a701bcb82e8c32cc7a (patch)
treec23d1c952ec837729700b5e3c34cdb42a073b055 /drivers/nvdimm/nd-core.h
parentf524bf271a5cf12a44253194abcf8b6688ff5b9d (diff)
libnvdimm: write blk label set
After 'uuid', 'size', 'sector_size', and optionally 'alt_name' have been set to valid values the labels on the dimm can be updated. The difference with the pmem case is that blk namespaces are limited to one dimm and can cover discontiguous ranges in dpa space. Also, after allocating label slots, it is useful for userspace to know how many slots are left. Export this information in sysfs. Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Neil Brown <neilb@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/nd-core.h')
-rw-r--r--drivers/nvdimm/nd-core.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index 22489555a6f1..78d6c51f4bac 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -75,5 +75,6 @@ struct nd_mapping;
struct resource *nsblk_add_resource(struct nd_region *nd_region,
struct nvdimm_drvdata *ndd, struct nd_namespace_blk *nsblk,
resource_size_t start);
+int nvdimm_num_label_slots(struct nvdimm_drvdata *ndd);
void get_ndd(struct nvdimm_drvdata *ndd);
#endif /* __ND_CORE_H__ */