NVMe: Disk IO statistics
Add io stats accounting for bio requests so nvme block devices show
useful disk stats.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index f451c8d..5d7c079 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -572,6 +572,7 @@
int offset; /* Of PRP list */
int nents; /* Used in scatterlist */
int length; /* Of data, in bytes */
+ unsigned long start_time;
dma_addr_t first_dma;
struct scatterlist sg[0];
};