tree abe35791e5ab46d944f35112e25570ab861a7e2f
parent c901931d353a0f024dccee7b3c6c531ce32dd053
author Tejun Heo <tj@kernel.org> 1357576623 -0800
committer Tejun Heo <tj@kernel.org> 1357576623 -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>