diff options
| -rw-r--r-- | drivers/nvdimm/label.c | 46 |
1 files changed, 29 insertions, 17 deletions
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index d1a7f399cfe4..7188675c0955 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -898,6 +898,10 @@ static struct resource *to_resource(struct nvdimm_drvdata *ndd, return NULL; } +/* + * Use the presence of the type_guid as a flag to determine isetcookie + * usage and nlabel + position policy for blk-aperture namespaces. + */ static void nsl_set_blk_isetcookie(struct nvdimm_drvdata *ndd, struct nd_namespace_label *nd_label, u64 isetcookie) @@ -925,6 +929,28 @@ bool nsl_validate_blk_isetcookie(struct nvdimm_drvdata *ndd, return true; } +static void nsl_set_blk_nlabel(struct nvdimm_drvdata *ndd, + struct nd_namespace_label *nd_label, int nlabel, + bool first) +{ + if (!namespace_label_has(ndd, type_guid)) { + nsl_set_nlabel(ndd, nd_label, 0); /* N/A */ + return; + } + nsl_set_nlabel(ndd, nd_label, first ? nlabel : 0xffff); +} + +static void nsl_set_blk_position(struct nvdimm_drvdata *ndd, + struct nd_namespace_label *nd_label, + bool first) +{ + if (!namespace_label_has(ndd, type_guid)) { + nsl_set_position(ndd, nd_label, 0); + return; + } + nsl_set_position(ndd, nd_label, first ? 0 : 0xffff); +} + /* * 1/ Account all the labels that can be freed after this update * 2/ Allocate and write the label to the staging (next) index @@ -1056,23 +1082,9 @@ static int __blk_label_update(struct nd_region *nd_region, nsl_set_name(ndd, nd_label, nsblk->alt_name); nsl_set_flags(ndd, nd_label, NSLABEL_FLAG_LOCAL); - /* - * Use the presence of the type_guid as a flag to - * determine isetcookie usage and nlabel + position - * policy for blk-aperture namespaces. - */ - if (namespace_label_has(ndd, type_guid)) { - if (i == min_dpa_idx) { - nsl_set_nlabel(ndd, nd_label, nsblk->num_resources); - nsl_set_position(ndd, nd_label, 0); - } else { - nsl_set_nlabel(ndd, nd_label, 0xffff); - nsl_set_position(ndd, nd_label, 0xffff); - } - } else { - nsl_set_nlabel(ndd, nd_label, 0); /* N/A */ - nsl_set_position(ndd, nd_label, 0); /* N/A */ - } + nsl_set_blk_nlabel(ndd, nd_label, nsblk->num_resources, + i == min_dpa_idx); + nsl_set_blk_position(ndd, nd_label, i == min_dpa_idx); nsl_set_blk_isetcookie(ndd, nd_label, nd_set->cookie2); nsl_set_dpa(ndd, nd_label, res->start); |