Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "Core block changes that have been queued up for this release:

   - Remove dead blk-throttle and blk-wbt code (Guoqing)

   - Include pid in blktrace note traces (Jan)

   - Don't spew I/O errors on wouldblock termination (me)

   - Zone append addition (Johannes, Keith, Damien)

   - IO accounting improvements (Konstantin, Christoph)

   - blk-mq hardware map update improvements (Ming)

   - Scheduler dispatch improvement (Salman)

   - Inline block encryption support (Satya)

   - Request map fixes and improvements (Weiping)

   - blk-iocost tweaks (Tejun)

   - Fix for timeout failing with error injection (Keith)

   - Queue re-run fixes (Douglas)

   - CPU hotplug improvements (Christoph)

   - Queue entry/exit improvements (Christoph)

   - Move DMA drain handling to the few drivers that use it (Christoph)

   - Partition handling cleanups (Christoph)"

* tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block: (127 commits)
  block: mark bio_wouldblock_error() bio with BIO_QUIET
  blk-wbt: rename __wbt_update_limits to wbt_update_limits
  blk-wbt: remove wbt_update_limits
  blk-throttle: remove tg_drain_bios
  blk-throttle: remove blk_throtl_drain
  null_blk: force complete for timeout request
  blk-mq: drain I/O when all CPUs in a hctx are offline
  blk-mq: add blk_mq_all_tag_iter
  blk-mq: open code __blk_mq_alloc_request in blk_mq_alloc_request_hctx
  blk-mq: use BLK_MQ_NO_TAG in more places
  blk-mq: rename BLK_MQ_TAG_FAIL to BLK_MQ_NO_TAG
  blk-mq: move more request initialization to blk_mq_rq_ctx_init
  blk-mq: simplify the blk_mq_get_request calling convention
  blk-mq: remove the bio argument to ->prepare_request
  nvme: force complete cancelled requests
  blk-mq: blk-mq: provide forced completion method
  block: fix a warning when blkdev.h is included for !CONFIG_BLOCK builds
  block: blk-crypto-fallback: remove redundant initialization of variable err
  block: reduce part_stat_lock() scope
  block: use __this_cpu_add() instead of access by smp_processor_id()
  ...

1 files changed, 4 insertions, 23 deletions

diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 840c3aef3c5c..c80a2f1c3c2a 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -21,24 +21,6 @@
 
 static bool drbd_may_do_local_read(struct drbd_device *device, sector_t sector, int size);
 
-/* Update disk stats at start of I/O request */
-static void _drbd_start_io_acct(struct drbd_device *device, struct drbd_request *req)
-{
-	struct request_queue *q = device->rq_queue;
-
-	generic_start_io_acct(q, bio_op(req->master_bio),
-				req->i.size >> 9, &device->vdisk->part0);
-}
-
-/* Update disk stats when completing request upwards */
-static void _drbd_end_io_acct(struct drbd_device *device, struct drbd_request *req)
-{
-	struct request_queue *q = device->rq_queue;
-
-	generic_end_io_acct(q, bio_op(req->master_bio),
-			    &device->vdisk->part0, req->start_jif);
-}
-
 static struct drbd_request *drbd_req_new(struct drbd_device *device, struct bio *bio_src)
 {
 	struct drbd_request *req;
@@ -263,7 +245,7 @@ void drbd_req_complete(struct drbd_request *req, struct bio_and_error *m)
 		start_new_tl_epoch(first_peer_device(device)->connection);
 
 	/* Update disk stats */
-	_drbd_end_io_acct(device, req);
+	bio_end_io_acct(req->master_bio, req->start_jif);
 
 	/* If READ failed,
 	 * have it be pushed back to the retry work queue,
@@ -1222,16 +1204,15 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
 		bio_endio(bio);
 		return ERR_PTR(-ENOMEM);
 	}
-	req->start_jif = start_jif;
+
+	/* Update disk stats */
+	req->start_jif = bio_start_io_acct(req->master_bio);
 
 	if (!get_ldev(device)) {
 		bio_put(req->private_bio);
 		req->private_bio = NULL;
 	}
 
-	/* Update disk stats */
-	_drbd_start_io_acct(device, req);
-
 	/* process discards always from our submitter thread */
 	if (bio_op(bio) == REQ_OP_WRITE_ZEROES ||
 	    bio_op(bio) == REQ_OP_DISCARD)