[PATCH 0/4] io-controller: Use names rather than major:minor

[Chad Talbott <ctalbott@google.com>]

This stack (which includes Gui's patch for per-device weights),
changes the various blkio.* stats to use the disks' names (sda, sdb,
etc.) rather than major:minor pairs when printing statistics.
Additionally setting a per-device policy can be done via the disk's
name.

This has the side effect of fixing the "root cgroup shows no stats"
problem that Ricky mentioned.

Chad

---

Chad Talbott (4):
      blkio_group key change: void * -> request_queue *
      Adds an RCU-protected pointer to request_queue that makes it easy to
      io-controller: Add a new interface "weight_device" for IO-Controller
      Use disk-names to set blkio.weight_device policy


 block/blk-cgroup.c     |  224 +++++++++++++++++++++++++++++++++++++++++++++---
 block/blk-cgroup.h     |   23 ++++-
 block/blk-sysfs.c      |    4 +
 block/cfq-iosched.c    |   27 ++----
 include/linux/blkdev.h |    6 +
 5 files changed, 248 insertions(+), 36 deletions(-)