tree 5e58a04ca24c1b0708e47e5121a630a12b62d611
parent d357ad81a55ee7712db2d19b7640da4abcaaac53
author Tejun Heo <tj@kernel.org> 1356736506 -0800
committer Tejun Heo <tj@kernel.org> 1356736506 -0800

cfq-iosched: add hierarchical cfq_group statistics

Unfortunately, at this point, there's no way to make the existing
statistics hierarchical without creating nasty surprises for the
existing users.  Just create recursive counterpart of the existing
stats.

Signed-off-by: Tejun Heo <tj@kernel.org>