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

From: Chad Talbott
Date: Thu Mar 25 2010 - 14:04:54 EST


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(-)

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