blkcg: drop BLKCG_STAT_{PRIV|POL|OFF} macros
authorTejun Heo <tj@kernel.org>
Sun, 1 Apr 2012 21:38:45 +0000 (14:38 -0700)
committerTejun Heo <tj@kernel.org>
Sun, 1 Apr 2012 21:38:45 +0000 (14:38 -0700)
commit5bc4afb1ec6aa562fac4d9aba34d957ee42f5813
treedfef1de2dcb71beab3150ffecf6ae564d326ffba
parentd366e7ec41882791c970dfb7c67b737be8c3a174
blkcg: drop BLKCG_STAT_{PRIV|POL|OFF} macros

Now that all stat handling code lives in policy implementations,
there's no need to encode policy ID in cft->private.

* Export blkcg_prfill_[rw]stat() from blkcg, remove
  blkcg_print_[rw]stat(), and implement cfqg_print_[rw]stat() which
  use hard-code BLKIO_POLICY_PROP.

* Use cft->private for offset of the target field directly and drop
  BLKCG_STAT_{PRIV|POL|OFF}().

Signed-off-by: Tejun Heo <tj@kernel.org>
block/blk-cgroup.c
block/blk-cgroup.h
block/blk-throttle.c
block/cfq-iosched.c