Merge branch 'for-2.6.37/core' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.37/core' of git://git.kernel.dk/linux-2.6-block: (39 commits)
  cfq-iosched: Fix a gcc 4.5 warning and put some comments
  block: Turn bvec_k{un,}map_irq() into static inline functions
  block: fix accounting bug on cross partition merges
  block: Make the integrity mapped property a bio flag
  block: Fix double free in blk_integrity_unregister
  block: Ensure physical block size is unsigned int
  blkio-throttle: Fix possible multiplication overflow in iops calculations
  blkio-throttle: limit max iops value to UINT_MAX
  blkio-throttle: There is no need to convert jiffies to milli seconds
  blkio-throttle: Fix link failure failure on i386
  blkio: Recalculate the throttled bio dispatch time upon throttle limit change
  blkio: Add root group to td->tg_list
  blkio: deletion of a cgroup was causes oops
  blkio: Do not export throttle files if CONFIG_BLK_DEV_THROTTLING=n
  block: set the bounce_pfn to the actual DMA limit rather than to max memory
  block: revert bad fix for memory hotplug causing bounces
  Fix compile error in blk-exec.c for !CONFIG_DETECT_HUNG_TASK
  block: set the bounce_pfn to the actual DMA limit rather than to max memory
  block: Prevent hang_check firing during long I/O
  cfq: improve fsync performance for small files
  ...

Fix up trivial conflicts due to __rcu sparse annotation in include/linux/genhd.h

diff --cc Documentation/cgroups/blkio-controller.txt
Simple merge

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

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

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

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

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

diff --cc block/blk.h
index d6b911a,1340cce..f864012
--- 1/block/blk.h
--- 2/block/blk.h
+++ b/block/blk.h
@@@ -132,22 -128,13 +128,14 @@@ static inline int queue_congestion_off_
        return q->nr_congestion_off;
  }
  
- #if defined(CONFIG_BLK_DEV_INTEGRITY)
- 
- #define rq_for_each_integrity_segment(bvl, _rq, _iter)                \
-       __rq_for_each_bio(_iter.bio, _rq)                       \
-               bip_for_each_vec(bvl, _iter.bio->bi_integrity, _iter.i)
- 
- #endif /* BLK_DEV_INTEGRITY */
- 
  static inline int blk_cpu_to_group(int cpu)
  {
 +      int group = NR_CPUS;
  #ifdef CONFIG_SCHED_MC
        const struct cpumask *mask = cpu_coregroup_mask(cpu);
 -      return cpumask_first(mask);
 +      group = cpumask_first(mask);
  #elif defined(CONFIG_SCHED_SMT)
 -      return cpumask_first(topology_thread_cpumask(cpu));
 +      group = cpumask_first(topology_thread_cpumask(cpu));
  #else
        return cpu;
  #endif

diff --cc block/cfq-iosched.c
Simple merge

diff --cc drivers/scsi/scsi_lib.c
Simple merge

diff --cc drivers/scsi/sg.c
Simple merge

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

diff --cc include/linux/genhd.h
index af3f06b,57647ec..557c392
--- 1/include/linux/genhd.h
--- 2/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@@ -129,8 -139,9 +139,9 @@@ struct blk_scsi_cmd_filter 
  struct disk_part_tbl {
        struct rcu_head rcu_head;
        int len;
 -      struct hd_struct *last_lookup;
 +      struct hd_struct __rcu *last_lookup;
+       struct gendisk *disk;
 -      struct hd_struct *part[];
 +      struct hd_struct __rcu *part[];
  };
  
  struct gendisk {

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

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

diff --cc init/Kconfig
Simple merge