lightnvm: pblk: add iostat support

Since pblk registers its own block device, the iostat accounting is
not automatically done for us. Therefore, add the necessary
accounting logic to satisfy the iostat interface.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 93ec4fd2c26e..8af374ee54c5 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -113,6 +113,7 @@ struct pblk_c_ctx {
 /* read context */
 struct pblk_g_ctx {
 	void *private;
+	unsigned long start_time;
 	u64 lba;
 };