Merge branch 'for-3.3/core' of git://git.kernel.dk/linux-block

* 'for-3.3/core' of git://git.kernel.dk/linux-block: (37 commits)
  Revert "block: recursive merge requests"
  block: Stop using macro stubs for the bio data integrity calls
  blockdev: convert some macros to static inlines
  fs: remove unneeded plug in mpage_readpages()
  block: Add BLKROTATIONAL ioctl
  block: Introduce blk_set_stacking_limits function
  block: remove WARN_ON_ONCE() in exit_io_context()
  block: an exiting task should be allowed to create io_context
  block: ioc_cgroup_changed() needs to be exported
  block: recursive merge requests
  block, cfq: fix empty queue crash caused by request merge
  block, cfq: move icq creation and rq->elv.icq association to block core
  block, cfq: restructure io_cq creation path for io_context interface cleanup
  block, cfq: move io_cq exit/release to blk-ioc.c
  block, cfq: move icq cache management to block core
  block, cfq: move io_cq lookup to blk-ioc.c
  block, cfq: move cfqd->icq_list to request_queue and add request->elv.icq
  block, cfq: reorganize cfq_io_context into generic and cfq specific parts
  block: remove elevator_queue->ops
  block: reorder elevator switch sequence
  ...

Fix up conflicts in:
 - block/blk-cgroup.c
	Switch from can_attach_task to can_attach
 - block/cfq-iosched.c
	conflict with now removed cic index changes (we now use q->id instead)

1 files changed, 5 insertions, 3 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 443f5125f11..f3fa18887cc 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -873,6 +873,7 @@ static int copy_io(unsigned long clone_flags, struct task_struct *tsk)
 {
 #ifdef CONFIG_BLOCK
         struct io_context *ioc = current->io_context;
+        struct io_context *new_ioc;
 
         if (!ioc)
                 return 0;
@@ -884,11 +885,12 @@ static int copy_io(unsigned long clone_flags, struct task_struct *tsk)
                 if (unlikely(!tsk->io_context))
                         return -ENOMEM;
         } else if (ioprio_valid(ioc->ioprio)) {
-                tsk->io_context = alloc_io_context(GFP_KERNEL, -1);
-                if (unlikely(!tsk->io_context))
+                new_ioc = get_task_io_context(tsk, GFP_KERNEL, NUMA_NO_NODE);
+                if (unlikely(!new_ioc))
                         return -ENOMEM;
 
-                tsk->io_context->ioprio = ioc->ioprio;
+                new_ioc->ioprio = ioc->ioprio;
+                put_io_context(new_ioc, NULL);
         }
 #endif
         return 0;