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

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  cfq-iosched: Do not idle on async queues
  blk-cgroup: Fix potential deadlock in blk-cgroup
  block: fix bugs in bio-integrity mempool usage
  block: fix bio_add_page for non trivial merge_bvec_fn case
  drbd: null dereference bug
  drbd: fix max_segment_size initialization

1 files changed, 2 insertions, 2 deletions

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 1fa2654db0a6..e7dbbaf5fb3e 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -147,16 +147,16 @@ blkiocg_weight_write(struct cgroup *cgroup, struct cftype *cftype, u64 val)
                 return -EINVAL;
 
         blkcg = cgroup_to_blkio_cgroup(cgroup);
+        spin_lock(&blkio_list_lock);
         spin_lock_irq(&blkcg->lock);
         blkcg->weight = (unsigned int)val;
         hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
-                spin_lock(&blkio_list_lock);
                 list_for_each_entry(blkiop, &blkio_list, list)
                         blkiop->ops.blkio_update_group_weight_fn(blkg,
                                         blkcg->weight);
-                spin_unlock(&blkio_list_lock);
         }
         spin_unlock_irq(&blkcg->lock);
+        spin_unlock(&blkio_list_lock);
         return 0;
 }