diff options
Diffstat (limited to 'include/linux/nd.h')
| -rw-r--r-- | include/linux/nd.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/nd.h b/include/linux/nd.h index fa099e295f78..62988000e7a7 100644 --- a/include/linux/nd.h +++ b/include/linux/nd.h @@ -110,7 +110,7 @@ static inline struct nd_namespace_common *to_ndns(struct device *dev) /** * struct nd_namespace_io - device representation of a persistent memory range - * @dev: namespace device created by the nd region driver + * @common: namespace device core infrastructure created by the nd region driver * @res: struct resource conversion of a NFIT SPA table * @size: cached resource_size(@res) for fast path size checks * @addr: virtual address to access the namespace range @@ -158,8 +158,11 @@ static inline struct nd_namespace_pmem *to_nd_namespace_pmem(const struct device * @offset: namespace-relative starting offset * @buf: buffer to fill * @size: transfer length + * @flags: process (0) or atomic (1) context * * @buf is up-to-date upon return from this routine. + * + * Returns: %0 on success or a negative error code on failure */ static inline int nvdimm_read_bytes(struct nd_namespace_common *ndns, resource_size_t offset, void *buf, size_t size, @@ -174,11 +177,14 @@ static inline int nvdimm_read_bytes(struct nd_namespace_common *ndns, * @offset: namespace-relative starting offset * @buf: buffer to drain * @size: transfer length + * @flags: process (0) or atomic (1) context * * NVDIMM Namepaces disks do not implement sectors internally. Depending on * the @ndns, the contents of @buf may be in cpu cache, platform buffers, * or on backing memory media upon return from this routine. Flushing * to media is handled internal to the @ndns driver, if at all. + * + * Returns: %0 on success or a negative error code on failure */ static inline int nvdimm_write_bytes(struct nd_namespace_common *ndns, resource_size_t offset, void *buf, size_t size, |