From f524bf271a5cf12a44253194abcf8b6688ff5b9d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 30 May 2015 12:36:02 -0400 Subject: libnvdimm: write pmem label set After 'uuid', 'size', and optionally 'alt_name' have been set to valid values the labels on the dimms can be updated. Write procedure is: 1/ Allocate and write new labels in the "next" index 2/ Free the old labels in the working copy 3/ Write the bitmap and the label space on the dimm 4/ Write the index to make the update valid Label ranges directly mirror the dpa resource values for the given label_id of the namespace. Cc: Greg KH Cc: Neil Brown Acked-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/nvdimm/nd.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/nvdimm/nd.h') diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 9b021b626202..bfa849617358 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -93,6 +93,7 @@ static inline unsigned nd_inc_seq(unsigned seq) return next[seq & 3]; } + enum nd_async_mode { ND_SYNC, ND_ASYNC, @@ -115,6 +116,8 @@ struct nvdimm; struct nvdimm_drvdata *to_ndd(struct nd_mapping *nd_mapping); int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd); int nvdimm_init_config_data(struct nvdimm_drvdata *ndd); +int nvdimm_set_config_data(struct nvdimm_drvdata *ndd, size_t offset, + void *buf, size_t len); struct nd_region *to_nd_region(struct device *dev); int nd_region_to_nstype(struct nd_region *nd_region); int nd_region_register_namespaces(struct nd_region *nd_region, int *err); -- cgit v1.2.3