diff options
Diffstat (limited to 'include/linux/nd.h')
| -rw-r--r-- | include/linux/nd.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/nd.h b/include/linux/nd.h index d8f5023b49ae..96069c543890 100644 --- a/include/linux/nd.h +++ b/include/linux/nd.h @@ -21,6 +21,14 @@ enum nvdimm_event { NVDIMM_REVALIDATE_POISON, }; +enum nvdimm_claim_class { + NVDIMM_CCLASS_NONE, + NVDIMM_CCLASS_BTT, + NVDIMM_CCLASS_PFN, + NVDIMM_CCLASS_DAX, + NVDIMM_CCLASS_UNKNOWN, +}; + struct nd_device_driver { struct device_driver drv; unsigned long type; @@ -41,12 +49,14 @@ static inline struct nd_device_driver *to_nd_device_driver( * @force_raw: ignore other personalities for the namespace (e.g. btt) * @dev: device model node * @claim: when set a another personality has taken ownership of the namespace + * @claim_class: restrict claim type to a given class * @rw_bytes: access the raw namespace capacity with byte-aligned transfers */ struct nd_namespace_common { int force_raw; struct device dev; struct device *claim; + enum nvdimm_claim_class claim_class; int (*rw_bytes)(struct nd_namespace_common *, resource_size_t offset, void *buf, size_t size, int rw, unsigned long flags); }; |