Merge branch 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block: (29 commits)
  block: use blkdev_issue_discard in blk_ioctl_discard
  Make DISCARD_BARRIER and DISCARD_NOBARRIER writes instead of reads
  block: don't assume device has a request list backing in nr_requests store
  block: Optimal I/O limit wrapper
  cfq: choose a new next_req when a request is dispatched
  Seperate read and write statistics of in_flight requests
  aoe: end barrier bios with EOPNOTSUPP
  block: trace bio queueing trial only when it occurs
  block: enable rq CPU completion affinity by default
  cfq: fix the log message after dispatched a request
  block: use printk_once
  cciss: memory leak in cciss_init_one()
  splice: update mtime and atime on files
  block: make blk_iopoll_prep_sched() follow normal 0/1 return convention
  cfq-iosched: get rid of must_alloc flag
  block: use interrupts disabled version of raise_softirq_irqoff()
  block: fix comment in blk-iopoll.c
  block: adjust default budget for blk-iopoll
  block: fix long lines in block/blk-iopoll.c
  block: add blk-iopoll, a NAPI like approach for block devices
  ...

diff --cc block/blk-core.c
Simple merge

diff --cc drivers/block/aoe/aoeblk.c
Simple merge

diff --cc drivers/scsi/scsi_lib.c
index 662024d86949fabfe23d7a3ffee2d5fb50590787,90c94da8baa445030265b85fa480a0d254a0ac98..5987da857103ea461e6abd692a84de8959fe03e3
--- 1/drivers/scsi/scsi_lib.c
--- 2/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@@ -896,10 -896,11 +896,12 @@@ void scsi_io_completion(struct scsi_cmn
                        scsi_print_result(cmd);
                        if (driver_byte(result) & DRIVER_SENSE)
                                scsi_print_sense("", cmd);
 +                      scsi_print_command(cmd);
                }
-               blk_end_request_all(req, -EIO);
-               scsi_next_command(cmd);
+               if (blk_end_request_err(req, -EIO))
+                       scsi_requeue_command(q, cmd);
+               else
+                       scsi_next_command(cmd);
                break;
        case ACTION_REPREP:
                /* Unprep the request and put it back at the head of the queue.

diff --cc drivers/staging/dst/dcore.c
Simple merge

diff --cc fs/gfs2/rgrp.c
Simple merge

diff --cc fs/splice.c
Simple merge

diff --cc include/linux/fs.h
Simple merge

diff --cc include/linux/interrupt.h
Simple merge

diff --cc kernel/sysctl.c
Simple merge