Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits)
  Documentation/iostats.txt: bit-size reference etc.
  cfq-iosched: removing unnecessary think time checking
  cfq-iosched: Don't clear queue stats when preempt.
  blk-throttle: Reset group slice when limits are changed
  blk-cgroup: Only give unaccounted_time under debug
  cfq-iosched: Don't set active queue in preempt
  block: fix non-atomic access to genhd inflight structures
  block: attempt to merge with existing requests on plug flush
  block: NULL dereference on error path in __blkdev_get()
  cfq-iosched: Don't update group weights when on service tree
  fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away
  block: Require subsystems to explicitly allocate bio_set integrity mempool
  jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging
  jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging
  fs: make fsync_buffers_list() plug
  mm: make generic_writepages() use plugging
  blk-cgroup: Add unaccounted time to timeslice_used.
  block: fixup plugging stubs for !CONFIG_BLOCK
  block: remove obsolete comments for blkdev_issue_zeroout.
  blktrace: Use rq->cmd_flags directly in blk_add_trace_rq.
  ...

Fix up conflicts in fs/{aio.c,super.c}

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 3df570db0e4..eb0afec046e 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -391,9 +391,8 @@ static int iblock_do_task(struct se_task *task)
 {
         struct se_device *dev = task->task_se_cmd->se_dev;
         struct iblock_req *req = IBLOCK_REQ(task);
-        struct iblock_dev *ibd = (struct iblock_dev *)req->ib_dev;
-        struct request_queue *q = bdev_get_queue(ibd->ibd_bd);
         struct bio *bio = req->ib_bio, *nbio = NULL;
+        struct blk_plug plug;
         int rw;
 
         if (task->task_data_direction == DMA_TO_DEVICE) {
@@ -411,6 +410,7 @@ static int iblock_do_task(struct se_task *task)
                 rw = READ;
         }
 
+        blk_start_plug(&plug);
         while (bio) {
                 nbio = bio->bi_next;
                 bio->bi_next = NULL;
@@ -420,9 +420,8 @@ static int iblock_do_task(struct se_task *task)
                 submit_bio(rw, bio);
                 bio = nbio;
         }
+        blk_finish_plug(&plug);
 
-        if (q->unplug_fn)
-                q->unplug_fn(q);
         return PYX_TRANSPORT_SENT_TO_TRANSPORT;
 }