diff options
Diffstat (limited to 'drivers/nvdimm')
| -rw-r--r-- | drivers/nvdimm/namespace_devs.c | 18 | ||||
| -rw-r--r-- | drivers/nvdimm/nd.h | 1 | ||||
| -rw-r--r-- | drivers/nvdimm/region_devs.c | 9 |
3 files changed, 24 insertions, 4 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index ce3e8dfa10ad..1b481a5fb966 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -1700,6 +1700,7 @@ static int select_pmem_id(struct nd_region *nd_region, u8 *pmem_id) struct device *create_namespace_pmem(struct nd_region *nd_region, struct nd_namespace_label *nd_label) { + u64 altcookie = nd_region_interleave_set_altcookie(nd_region); u64 cookie = nd_region_interleave_set_cookie(nd_region); struct nd_label_ent *label_ent; struct nd_namespace_pmem *nspm; @@ -1718,7 +1719,11 @@ struct device *create_namespace_pmem(struct nd_region *nd_region, if (__le64_to_cpu(nd_label->isetcookie) != cookie) { dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n", nd_label->uuid); - return ERR_PTR(-EAGAIN); + if (__le64_to_cpu(nd_label->isetcookie) != altcookie) + return ERR_PTR(-EAGAIN); + + dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n", + nd_label->uuid); } nspm = kzalloc(sizeof(*nspm), GFP_KERNEL); @@ -1733,9 +1738,14 @@ struct device *create_namespace_pmem(struct nd_region *nd_region, res->name = dev_name(&nd_region->dev); res->flags = IORESOURCE_MEM; - for (i = 0; i < nd_region->ndr_mappings; i++) - if (!has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i)) - break; + for (i = 0; i < nd_region->ndr_mappings; i++) { + if (has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i)) + continue; + if (has_uuid_at_pos(nd_region, nd_label->uuid, altcookie, i)) + continue; + break; + } + if (i < nd_region->ndr_mappings) { struct nvdimm_drvdata *ndd = to_ndd(&nd_region->mapping[i]); diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 35dd75057e16..2a99c83aa19f 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -328,6 +328,7 @@ 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); u64 nd_region_interleave_set_cookie(struct nd_region *nd_region); +u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region); void nvdimm_bus_lock(struct device *dev); void nvdimm_bus_unlock(struct device *dev); bool is_nvdimm_bus_locked(struct device *dev); diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index 7cd705f3247c..b7cb5066d961 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -505,6 +505,15 @@ u64 nd_region_interleave_set_cookie(struct nd_region *nd_region) return 0; } +u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region) +{ + struct nd_interleave_set *nd_set = nd_region->nd_set; + + if (nd_set) + return nd_set->altcookie; + return 0; +} + void nd_mapping_free_labels(struct nd_mapping *nd_mapping) { struct nd_label_ent *label_ent, *e; |