diff options
Diffstat (limited to 'drivers/nvdimm/claim.c')
| -rw-r--r-- | drivers/nvdimm/claim.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index 7ceb5fa4f2a1..de9b1cce242e 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -184,6 +184,34 @@ ssize_t nd_namespace_store(struct device *dev, } ndns = to_ndns(found); + + switch (ndns->claim_class) { + case NVDIMM_CCLASS_NONE: + break; + case NVDIMM_CCLASS_BTT: + if (!is_nd_btt(dev)) { + len = -EBUSY; + goto out_attach; + } + break; + case NVDIMM_CCLASS_PFN: + if (!is_nd_pfn(dev)) { + len = -EBUSY; + goto out_attach; + } + break; + case NVDIMM_CCLASS_DAX: + if (!is_nd_dax(dev)) { + len = -EBUSY; + goto out_attach; + } + break; + default: + len = -EBUSY; + goto out_attach; + break; + } + if (__nvdimm_namespace_capacity(ndns) < SZ_16M) { dev_dbg(dev, "%s too small to host\n", name); len = -ENXIO; |