Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block: (23 commits)
  Revert "cfq: Remove special treatment for metadata rqs."
  block: fix flush machinery for stacking drivers with differring flush flags
  block: improve rq_affinity placement
  blktrace: add FLUSH/FUA support
  Move some REQ flags to the common bio/request area
  allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
  xen/blkback: Make description more obvious.
  cfq-iosched: Add documentation about idling
  block: Make rq_affinity = 1 work as expected
  block: swim3: fix unterminated of_device_id table
  block/genhd.c: remove useless cast in diskstats_show()
  drivers/cdrom/cdrom.c: relax check on dvd manufacturer value
  drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse
  bsg-lib: add module.h include
  cfq-iosched: Reduce linked group count upon group destruction
  blk-throttle: correctly determine sync bio
  loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other
  loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
  loop: add management interface for on-demand device allocation
  loop: replace linked list of allocated devices with an idr index
  ...

1 files changed, 6 insertions, 2 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index b627558c461f..90e1ffdeb415 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1702,6 +1702,7 @@ EXPORT_SYMBOL_GPL(blk_rq_check_limits);
 int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
 {
         unsigned long flags;
+        int where = ELEVATOR_INSERT_BACK;
 
         if (blk_rq_check_limits(q, rq))
                 return -EIO;
@@ -1718,7 +1719,10 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
          */
         BUG_ON(blk_queued_rq(rq));
 
-        add_acct_request(q, rq, ELEVATOR_INSERT_BACK);
+        if (rq->cmd_flags & (REQ_FLUSH|REQ_FUA))
+                where = ELEVATOR_INSERT_FLUSH;
+
+        add_acct_request(q, rq, where);
         spin_unlock_irqrestore(q->queue_lock, flags);
 
         return 0;
@@ -2275,7 +2279,7 @@ static bool blk_end_bidi_request(struct request *rq, int error,
  *     %false - we are done with this request
  *     %true  - still buffers pending for this request
  **/
-static bool __blk_end_bidi_request(struct request *rq, int error,
+bool __blk_end_bidi_request(struct request *rq, int error,
                                    unsigned int nr_bytes, unsigned int bidi_bytes)
 {
         if (blk_update_bidi_request(rq, error, nr_bytes, bidi_bytes))