diff options
Diffstat (limited to 'drivers/nvdimm/nd.h')
| -rw-r--r-- | drivers/nvdimm/nd.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h index 6f916b65b7d6..4614b00542d1 100644 --- a/drivers/nvdimm/nd.h +++ b/drivers/nvdimm/nd.h @@ -13,6 +13,7 @@ #ifndef __ND_H__ #define __ND_H__ #include <linux/libnvdimm.h> +#include <linux/blkdev.h> #include <linux/device.h> #include <linux/mutex.h> #include <linux/ndctl.h> @@ -202,5 +203,17 @@ int nvdimm_namespace_detach_btt(struct nd_namespace_common *ndns); const char *nvdimm_namespace_disk_name(struct nd_namespace_common *ndns, char *name); int nd_blk_region_init(struct nd_region *nd_region); +void __nd_iostat_start(struct bio *bio, unsigned long *start); +static inline bool nd_iostat_start(struct bio *bio, unsigned long *start) +{ + struct gendisk *disk = bio->bi_bdev->bd_disk; + + if (!blk_queue_io_stat(disk->queue)) + return false; + + __nd_iostat_start(bio, start); + return true; +} +void nd_iostat_end(struct bio *bio, unsigned long start); resource_size_t nd_namespace_blk_validate(struct nd_namespace_blk *nsblk); #endif /* __ND_H__ */ |